AMD FX-8120 vs Intel Core i7-3770

Mini Review

AMD FX-8120 advantages



AMD FX-8120
  • The microprocessor includes XOP instructions, introduced in the recent past. While these extensions are not extensively used by programs yet, this should improve in future apps.
  • The processor features FMA4 instruction set extension. The FMA4 technology is only available on AMD processors, for that reason it may not get broad support from software vendors.
  • The FX-8120 is not "locked". As a result, the CPU can be easily overclocked on most motherboards if higher performance is desired.
  • The AMD FX-8120 is priced about 48% cheaper than the i7-3770.
  • The FX-8120 microprocessor has 36% better price/performance ratio.

Intel Core i7-3770 advantages



Intel Core i7-3770
  • In single-threaded programs, the i7-3770 has 89% higher performance.
  • The CPU is 49% faster when running multi-threaded applications.
  • Memory performance of the Intel Core i7-3770 is better.
  • In graphics tasks, the microprocessor is 6% faster.
  • The Intel Core i7-3770 features F16C instructions, that were introduced in the recent past. These extensions are not broadly supported by programs yet, however their support should improve in future apps.
  • Like many modern microprocessors, the i7-3770 processor incorporates graphics unit. While this graphics is not powerful enough to run latest games at full resolution, it can be used for casual gaming and 3D applications.
  • Power consumption of the i7-3770 is lower.

FX-8120 vs i7-3770 performance comparison

The charts demonstrate relative performance of FX-8120 and Core i7-3770 processors in various kinds of applications. To calculate displayed numbers we averaged results for a few benchmarks for each specific type of program. As such, performance in individual benchmarks may be lower or higher than what you see in the charts below. We also averaged the numbers for application type specific benchmarks and all-around performance benchmarks, and presented them in the 'Overall performance' chart. The 'Price-performance ratio' chart calculates how much more performance you will get per dollar spent. The cost of other system components is not included in this chart.
Single-threaded performance
3
2.4
1.8
1.2
0.6
0
 
 
1
 
1.89
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.49
 
 
Higher is better
Memory-intensive applications
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.39
 
 
Higher is better
Discrete Graphics performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.06
 
 
Higher is better
Overall performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.41
 
 
Higher is better
Price / performance ratio
2
1.6
1.2
0.8
0.4
0
 
 
1.36
 
1
 
 
Higher is better

  - AMD FX-8120       - Intel Core i7-3770

Exhaustive list of benchmarks, that show difference in performance between FX-8120 and Intel Core i7-3770 in various types of programs, can be seen in the "Benchmarks" tab.


FX-8120 vs i7-3770 power consumption and price comparison

Thermal Design Power
200
160
120
80
40
0
 
 
125W
 
77W
 
 
Lower is better
Current official price
400
320
240
160
80
0
 
 
$153
 
$294
 
 
Lower is better

Detailed side by side comparison of FX-8120 vs Core i7-3770 specs can be found in the "Specifications" tab. Even more detailed comparison of low level features of both microprocessors is located in the "CPUIDs" tab.


Pros and Cons summary

FX-8120 Core i7-3770
General recommendations:
Supports XOP instructions,
Can be effortlessly overclocked,
Less expensive,
Somewhat better price / performance ratio
  General recommendations:
Higher overall performance,
A bit faster in graphics tasks,
Supports F16C instructions,
Integrates HD 4000 GPU,
Needs less power

Drawbacks:

Not as fast overall,
A bit slow in games and graphics tasks,
Does not support some instructions,
No on-chip GPU,
Requires much more power
 

Drawbacks:

Lacks some instructions,
Considerably more expensive,
Worse price / performance ratio

Similar processors

FX-8120 Core i7-3770
 

Similar CPUs use the same socket and architecture as AMD FX-8120 and Intel Core i7-3770.

Jump to:
  • Benchmarks
  • CPUIDs
  • Comments
 

More comparisons

Compare AMD FX-8120 with...

Other Core i7 CPU:

Any CPU:


Compare Intel Core i7-3770 with...

Other FX-Series CPU:

Any CPU:


Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

  i5-3570K
  Intel Celeron 2 GHz
  Bulldozer
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit AMD FX-8120 and Intel Core i7-3770 pages for more complete specifications of both microprocessors.

 AMD FX-8120Intel Core i7-3770
Market segmentDesktop
ManufacturerAMDIntel
FamilyFX-SeriesCore i7
Basic details
Model numberFX-8120i7-3770
CPU part numberFD8120FRW8KGUCM8063701211600
Box part numberFD8120FRGUBOX
FD8120FRGUWOX
BX80637I73770
BXC80637I73770
Introduction dateOctober 12, 2011April 23, 2012
Current official price$153 (as of Jan 2014)$294 (as of Mar 2014)
 
CPU features
Core nameZambeziIvy Bridge
Platform nameScorpius 
MicroarchitectureBulldozerIvy Bridge
Technology (micron)0.0320.022
Data width (bits)64
SocketSocket AM3+Socket 1155
Frequency (MHz)31003400
Turbo Frequency (MHz)4000 / 34003900 / 3900 / 3800 / 3700
Bus speed (MHz)2600 (HT/QPI) 
Clock Multiplier 34
L1 cache256 KB (code) / 128 KB (data)128 KB (code) / 128 KB (data)
L2 cache (KB)81921024
L3 cache (KB)8192
Max temperature (°C)61 
TDP (Watt)12577
Cores84
Threads8
Multiprocessing1
 
Instruction set extensions
AES / Advanced Encryption Standard+
AMD64 / EM64T 64-bit technology+
AVX / Advanced Vector Extensions+
F16C / 16-bit Floating-Point conversion-+
FMA4 / 4-operand Fused Multiply-Add+-
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+
SSE4.2+
SSSE3 / Supplemental SSE3+
XOP / eXtended Operations+-
 
Supported technologies
Hyper-Threading-+
PowerNow! / Enhanced SpeedStep+
Trusted Execution-+
Turbo Core / Turbo Boost+
Unlocked multiplier+-
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNoneHD 4000
 
Integrated Memory Controller(s)
The number of controllers1
Memory channels2
Supported memoryDDR3-1866DDR3-1333, DDR3-1600
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "AMD FX-8120" or "Intel Core i7-3770" parts please click on the links in the table header.

Benchmarks

System setup

Below is a partial set of AMD FX-8120 and Intel Core i7-3770 benchmarks from our CPU benchmark database. The former processor was tested on ASUS Sabertooth 990FX motherboard with 4GB dual-channel Crucial BallistixPC3-14900 (DDR3-1866) memory, and MSI R6670 1GB GDDR5 (ATI Radeon). The latter processor was tested on ASUS P8P67 motherboard, that had 2 GB dual-channel Corsair TR3X3G1600C9 DDR3 memory, and MSI R6670 1GB GDDR5 (ATI Radeon) graphics. For different system configurations please see tests of FX-8120 and Intel Core i7-3770 CPUs in our benchmark database.

All tests were performed at default frequency and voltage, using manufacturer's stock fan/heatsink. None of the components were overclocked. Motherboard BIOS options were left at default settings.

The results of all benchmarks are broken into four categories: multi-threaded, single-threaded, memory intensive and graphics / gaming.


FX-8120 vs Intel Core i7-3770 single-threaded benchmarks

Single-threaded benchmarks run on a single CPU core, and do not depend on such features as the number of cores, or Hyper-Threading technology. Additionally, they do not utilize on-chip caches, dedicated to other cores.


    AMD FX-8120           Intel Core i7-3770

3DMark03 CPU score benchmark

Uses DirectX software vertex shader to run Wings of Fury and Trolls' Lair games, and calculates a 3DMark03 CPU score based on averaged number of frames per second, achieved by the CPU/GPU combination.
100%
62.8%

CINEBENCH R10 CPU score (1 core) benchmark

Measures performance of a single-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
100%
45.4%

FLAC encoding - single process benchmark

Reports the number of songs, converted by a single CPU core from WAV to FLAC format using the best possible compression.
100%
60.7%

H.264 video encoding - single process benchmark

Measures the number of frames, converted by one CPU thread from MPEG2 format to H.264 format using high quality settings.
100%
61.6%

LAME MP3 encoding - single process benchmark

Reports the number of MP3 songs, encoded by one CPU core per one minute.
100%
51.2%

    AMD FX-8120           Intel Core i7-3770

PCMark2002 CPU score benchmark

100%
54.0%

Super PI (1M) benchmark

Measures time, required to calculate the first 1 million digits after the decimal point in the number Pi.
100%
37.4%

XVid video encoding - single process benchmark

Reports how many frames per second can be transcoded by a single CPU core from MPEG2 to XVid (MPEG4) format, utilizing single-pass conversion method.
100%
61.0%


FX-8120 vs Intel Core i7-3770 multi-threaded benchmarks

Multi-threaded benchmarks utilize all CPU cores and other on-chip resources (on-chip caches, internal buffers, etc). Intel's Hyper-Threading feature also helps to improve multi-threading performance.


    AMD FX-8120           Intel Core i7-3770

3DMark06 CPU score benchmark

Estimates processor performance based on how fast it runs such CPU-intensive code as game logic, physics and pathfinding AI. The test requires DirectX 9.0.
100%
67.2%

Apache web server - dynamic pages benchmark

Shows an average number of dynamic HTML pages served per second by local instance of Apache 1.3.41 web server. The test has much greater error margin than other tests.
100%
80.9%

Apache web server - static pages benchmark

Shows an average number of very simple static HTML pages served per second by local Apache 1.3.41 web server. The test has much greater error margin than other tests.
100%
43.3%

Blowfish encryption benchmark

Reports encryption speed of pre-defined 32KB text block. The data is encrypted using Blowfish algorithm.
100%
62.6%

CINEBENCH R10 CPU score benchmark

Measures performance of multi-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
100%
59.1%

    AMD FX-8120           Intel Core i7-3770

CINEBENCH R10 render time (seconds) benchmark

Measures time taken to render a photo-realistic 3D image using CINEMA 4D software engine.
100%
59.1%

CrystalMark ALU benchmark

100%
48.8%

CrystalMark FPU benchmark

100%
47.9%

Euler3D benchmark

100%
72.6%

FLAC encoding - multiple processes benchmark

Reports the number of songs, converted from WAV to FLAC format by all CPU cores using the best possible compression.
100%
75.2%

    AMD FX-8120           Intel Core i7-3770

Fritz Chess Benchmark benchmark

100%
72.4%

H.264 video encoding - multiple processes benchmark

Measures the number of frames, converted by all logical processors from MPEG2 format to H.264 format using single-pass method and high quality settings.
100%
76.2%

H.264 video encoding - multithreaded benchmark

Measures the number of frames, converted by all logical processors from MPEG2 format to H.264 format using multi-threading system calls, dual-pass method and high quality settings.
100%
72.2%

LAME MP3 encoding - multiple processes benchmark

Reports the number of MP3 songs, encoded by all CPU cores per one minute.
100%
61.5%

MySQL 5.0.96 - selecting data benchmark

Shows sustained number of SQL requests per second served by local instance of MySQL server v5.0.96. This test scales well with the number of CPU cores.
100%
60.0%

    AMD FX-8120           Intel Core i7-3770

PCMark05 CPU score benchmark

100%
59.3%

PCMark05 score benchmark

100%
68.3%

Sandra Dhrystone (MIPS) benchmark

Runs Dhrystone test on all cores, and reports estimated integer performance in MIPS (Millions of Instructions Per Second).
100%
72.5%

Sandra MultiMedia Floating Point (it/s) benchmark

100%
61.2%

Sandra MultiMedia Integer (it/s) benchmark

100%
93.4%

    AMD FX-8120           Intel Core i7-3770

Sandra Whetstone (MFLOPS) benchmark

Runs Whetstone test on all cores, and reports estimated floating-point performance in MFLOPS (Millions of Floating-Point Operations Per Second).
100%
42.0%

Sandra Whetstone SSE2 (MFLOPS) benchmark

Runs SSE2-enabled Whetstone test on all cores, and reports estimated floating-point performance in MFLOPS (Millions of Floating-Point Operations Per Second).
100%
53.8%

XVid video encoding - multiple processes benchmark

Reports how many frames per second can be transcoded by all CPU cores from MPEG2 to XVid (MPEG4) format, utilizing single-pass conversion method.
100%
78.3%

wPrime v1.55 (32M) benchmark

wPrime benchmark measures time taken to calculate square roots of numbers from 1 to 33554431.
100%
61.7%


FX-8120 vs Intel Core i7-3770 graphics benchmarks

Graphics benchmarks depend on the type of integrated or discrete graphics adapter, and to less extent on the processor performance. Because these benchmarks are synthetic, they may not truly represent gaming performance. However, they still can be used to estimate whether one processor will perform faster or slower than another CPU in games and other 3D tasks.


    AMD FX-8120           Intel Core i7-3770

3DMark03 game score benchmark

Measures graphics and 3D game performance of discrete and integrated GPUs using 4 different game simulations, that have varying level of DirectX support from version 7 to version 9.
100%
94.0%

3DMark06 3DMark score benchmark

Measures 3D graphics and game performance of CPU/GPU combination by running 4 game simulations, that make extensive use of DirectX 9.0/9.0C capabilities.
100%
93.1%

3DMark2001 score benchmark

Runs a series of game simulations and feature tests to measure graphics and 3D game performance of discrete and integrated GPUs. It utilizes a single CPU core, and it is compatible with DirectX 8 and later APIs.
100%
55.4%

CINEBENCH R10 OpenGL score benchmark

100%
61.9%

PCMark05 Graphics score benchmark

100%
94.8%


FX-8120 vs Intel Core i7-3770 memory performance

Memory-intensive tests or programs move large amounts of data to/from memory, and they depend more on memory throughput and the size of on-chip caches, rather than on CPU integer/FP/SIMD performance.


    AMD FX-8120           Intel Core i7-3770

7Zip compressing/decompressing speed (1 thread) benchmark

100%
79.0%

CrystalMark Memory benchmark

100%
67.3%

PCMark05 Memory score benchmark

100%
56.0%

PCMark2002 Memory score benchmark

100%
51.3%

WinRAR compressing/decompressing speed benchmark

100%
88.4%

CPUIDs

The table below compares two random CPUID records for AMD FX-8120 and Intel Core i7-3770 microprocessors, that were submitted to our CPUID database. Please note that different steppings of Intel processors, identified by S-spec numbers or CPUID, may have slightly different features. For that reason the comparison table below only applies to CPUs with specific S-Spec number / CPUID.

  CPUID 1 CPUID 2
ManufacturerAMDIntel
CPU FamilyFX-SeriesCore i7
Model / Processor NumberFX-8120i7-3770
Frequency3110 MHz3391 MHz
CWID version0.4
Part numberFD8120FRW8KGUCM8063701211600
S-Spec / Stepping CodeFA 1135BPASR0PK
 
General information
VendorAuthenticAMDGenuineIntel
Processor name (BIOS)AMD FX(tm)-8120 Eight-Core Processor Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
Cores84
Compute units4 
Logical processors8
Processor typeOriginal OEM Processor
Core steppingOR-B2 
CPUID signature600F12306A9
Family21 (015h) 6 (06h)
Model 1 (01h)58 (03Ah)
Stepping 2 (02h) 9 (09h)
SocketAM3+ 
TLB/Cache details 64-byte Prefetching
Data TLB0: 2-MB or 4-MB pages, 4-way set associative, 32 entries
Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Instruction TLB: 4-KB pages, 4-way set associative, 64 entries
L2 TLB: 1-MB, 4-way set associative, 64-byte line size
Shared 2nd-level TLB: 4 KB pages, 4-way set associative, 512 entries
 
Cache
L1 data: Associativity4-way set associative8-way set associative
L1 data: Comments Direct-mapped
L1 data: Line size64 bytes
L1 data: Lines per tag1 
L1 data: Size8 x 16 KB4 x 32 KB
L1 instruction: Associativity2-way set associative8-way set associative
L1 instruction: Comments1 cache per 2 coresDirect-mapped
L1 instruction: Line size64 bytes
L1 instruction: Lines per tag1 
L1 instruction: Size4 x 64 KB4 x 32 KB
L2: Associativity16-way set associative8-way set associative
L2: Comments1 cache per 2 coresNon-inclusive|Direct-mapped
L2: Line size64 bytes
L2: Lines per tag1 
L2: Size4 x 2 MB4 x 256 KB
L3: Associativity64-way set associative16-way set associative
L3: Comments Inclusive|Shared between all cores
L3: Line size64 bytes
L3: Lines per tag1 
L3: Size8 MB
 
Instruction set extensions
AES+
AMD extensions to MMX+-
AVX+
F16C-+
FMA4+-
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+
SSE4.2+
SSE4A+-
SSSE3+
XOP+-
 
Additional instructions
Advanced Bit manipulation+-
CLFLUSH+
CMOV+
CMPXCHG16B+
CMPXCHG8B+
Enhanced REP MOVSB/STOSB-+
FXSAVE/FXRSTORE+
MONITOR/MWAIT+
PCLMULDQ+
POPCNT+
PREFETCH/PREFETCHW+-
RD/WR FSGSBASE instructions-+
RDRAND-+
RDTSCP+
SKINIT / STGI support+-
SYSCALL/SYSRET+-
SYSENTER/SYSEXIT+
XSAVE / XRESTORE states+
 
Major features
64-bit / Intel 64+
Enhanced SpeedStep-+
Hyper-Threading Technology-+
Intel Trusted Execution technology-+
Intel Virtualization-+
NX bit/XD-bit+
On-chip Floating Point Unit+
PowerNow! / Cool'n'Quiet+-
Secure Virtual Machine (Virtualization)+-
Turbo Boost-+
Turbo Core+-
 
Other features
1 GB large page support+-
100MHz multiplier control+-
128-bit SSE instructions+-
36-bit page-size extensions+
64-bit debug store-+
Advanced programmable interrupt controller+
CPL qualified debug store-+
Core multi-processing legacy mode+-
Debug store-+
Debugging extensions+
Digital Thermal Sensor capability-+
Extended APIC space+-
Extended xAPIC support-+
Hardware P-state control+-
Hardware thermal control+-
Instruction based sampling+-
LAHF / SAHF support in 64-bit mode+
LBR virtualization+-
LOCK MOV CR0 means MOV CR8+-
Lightweight profiling support+-
Machine check architecture+
Machine check exception+
Memory-type range registers+
Misaligned SSE mode+-
Model-specific registers+
Nested page tables+-
OS visible workaround+-
Page attribute table+
Page global extension+
Page-size extensions (4MB pages)+
Pending break enable-+
Perfmon and Debug capability-+
Physical address extensions+
Power Limit Notification capability-+
Process context identifiers-+
SVM lock+-
Self-snoop-+
Supervisor Mode Execution Protection-+
Support for NRIP save+-
THERMTRIP+-
TSC rate is ensured to be invariant across all states+
Temperature sensor+-
Thermal monitor-+
Thermal monitor 2-+
Thermal monitor and software controlled clock facilities-+
Time stamp counter+
Timestamp counter deadline-+
Virtual 8086-mode enhancements+
Watchdog timer support+-
xTPR Update Control-+
+ - feature is supported
- - feature is not supported
Features, not supported by all processors in the table, are not displayed

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