AMD A8-3870K vs FX-6100

Mini Review

AMD A8-3870K advantages



AMD A8-3870K
  • The A8-3870K is 11% faster when running single-threaded applications. The difference in performance is application specific. In some of them the CPU could be up to 24% faster.
  • Graphics performance of the AMD A8-3870K is better.
  • The AMD A8-3870K has 3DNow! technology enabled. Although the 3DNow! instruction set may boost performance of certain old games and software, it is now obsolete, and it is no longer used by modern programs.
  • This processor features integrated Radeon HD 6550D GPU. While this graphics unit is not powerful enough to run latest games at full resolution, it can be used for casual gaming and 3D apps.
  • The official price of the CPU is lower than the price of the AMD FX-6100.
  • The microprocessor has 25% better price/performance ratio.

AMD FX-6100 advantages



AMD FX-6100
  • The FX-6100 has 5% higher performance in multi-threaded programs.
  • Memory performance of the processor is better.
  • The microprocessor includes SSSE3, SSE4.1 and SSE4.2 instructions.
  • The AMD FX-6100 CPU features Advanced Encryption Standard (AES) technology, that accelerates AES encryption. The technology is valuable if you need to protect your disk or network data.
  • The FX-6100 microprocessor has AVX and XOP instructions. Even though these extensions are not broadly used in applications yet, their support should improve in future apps.
  • The processor includes FMA4 instruction set extension. The FMA4 technology is only available on AMD microprocessors, therefore not many software vendors may support it in the future.
  • Power consumption of the CPU is lower.

A8-3870K vs FX-6100 performance comparison

The charts in the table below illustrate performance of A8-3870K and FX-6100 CPUs in various kinds of programs. The numbers in the charts are based on a few benchmarks, that you can find in the "Benchmarks" tab. Consequentally, performance in individual benchmarks may be higher or lower than what you see in the charts here. We also averaged the results for task type specific benchmarks and all-around performance benchmarks, and displayed them in the 'Overall performance' chart. The 'Price-performance ratio' chart displays how much more performance you will get per dollar spent. This ratio does not take into account the cost of other system parts.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1.11
 
1
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.05
 
 
Higher is better
Memory-intensive applications
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.12
 
 
Higher is better
Discrete Graphics performance
2
1.6
1.2
0.8
0.4
0
 
 
1.02
 
1
 
 
Higher is better
Overall performance
2
1.6
1.2
0.8
0.4
0
 
 
1.01
 
1
 
 
Higher is better
Price / performance ratio
2
1.6
1.2
0.8
0.4
0
 
 
1.25
 
1
 
 
Higher is better

  - AMD A8-3870K       - AMD FX-6100

Exhaustive list of benchmarks, that demonstrate performance difference between AMD A8-3870K and FX-6100 in various types of tests, can be found in the "Benchmarks" tab.


A8-3870K vs FX-6100 power consumption and price comparison

Thermal Design Power
200
160
120
80
40
0
 
 
100W
 
95W
 
 
Lower is better
Current official price
200
160
120
80
40
0
 
 
$91
 
$112
 
 
Lower is better

Detailed side by side comparison of A8-3870K vs AMD FX-6100 specs can be found in the "Specifications" tab. Even more detailed comparison of low level features of both processors you will find in the "CPUIDs" tab.


Pros and Cons summary

A8-3870K FX-6100
General recommendations:
A bit faster in all program types,
Insignificantly higher performance in graphics tasks,
Comes with Radeon HD 6550D GPU,
Less expensive,
Somewhat better price / performance ratio
  General recommendations:
Performs insignificantly faster in multi-threaded programs,
Supports SSE4.1 / SSE4.2 / AVX / XOP instructions,
Needs less power

Drawbacks:

A bit slow in multi-threaded applications,
Lacks some instructions,
Needs insignificantly more power
 

Drawbacks:

Slightly slower overall performance,
A bit slow in graphics tasks,
No on-chip GPU,
More expensive,
Somewhat worse price / performance ratio

Similar processors

A8-3870K FX-6100
 

Similar CPUs use the same socket and architecture as A8-3870K and AMD FX-6100, however their performance and other characteristics are slightly different.

Jump to:
  • Benchmarks
  • CPUIDs
  • Comments
 

More comparisons

Compare AMD A8-3870K with...

Other FX-Series CPU:

Any CPU:


Compare AMD FX-6100 with...

Other A8-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
  K10
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit AMD A8-3870K and AMD FX-6100 pages for more complete specifications of both microprocessors.

 AMD A8-3870KAMD FX-6100
Market segmentDesktop
ManufacturerAMD
FamilyA8-SeriesFX-Series
Basic details
Model numberA8-3870KFX-6100
CPU part numberAD3870WNZ43GXFD6100WMW6KGU
Box part numberAD3870WNGXBOXFD6100WMGUSBX
Introduction dateDecember 20, 2011October 12, 2011
Current official price$91 (as of Mar 2014)$112 (as of Mar 2014)
 
CPU features
Core nameLlanoZambezi
Platform nameLynxScorpius
MicroarchitectureK10Bulldozer
Technology (micron)0.032
Data width (bits)64
SocketSocket FM1Socket AM3+
Frequency (MHz)30003300
Turbo Frequency (MHz) 3900 / 3600
Bus speed (MHz) 2600 (HT/QPI)
L1 cache256 KB (code) / 256 KB (data)192 KB (code) / 96 KB (data)
L2 cache (KB)40966144
L3 cache (KB) 8192
Max temperature (°C)72.770
TDP (Watt)10095
Core voltage (V)0.45 - 1.4125 
Cores46
Threads46
Multiprocessing1
 
Instruction set extensions
3DNow!+-
AES / Advanced Encryption Standard-+
AMD64 / EM64T 64-bit technology+
AVX / Advanced Vector Extensions-+
FMA4 / 4-operand Fused Multiply-Add-+
MMX+
SSE+
SSE2+
SSE3+
SSE4.1-+
SSE4.2-+
SSSE3 / Supplemental SSE3-+
XOP / eXtended Operations-+
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Turbo Core / Turbo Boost-+
Unlocked multiplier+
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeRadeon HD 6550DNone
 
Integrated Memory Controller(s)
The number of controllers1
Memory channels2
Supported memoryDDR3-1866
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "AMD A8-3870K" or "AMD FX-6100" parts please click on the links in the table header.

Benchmarks

System setup

Below is a partial set of AMD A8-3870K and FX-6100 benchmarks from our CPU benchmark database. The former processor was tested on ASUS F1A75-V Pro 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 Sabertooth 990FX motherboard, that had 4GB dual-channel Crucial BallistixPC3-14900 (DDR3-1866) memory, and MSI R6670 1GB GDDR5 (ATI Radeon) graphics. For different system configurations please see tests of A8-3870K and FX-6100 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.


A8-3870K vs FX-6100 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 A8-3870K           AMD FX-6100

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%
90.1%

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%
80.6%

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%
86.9%

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%
98.4%

LAME MP3 encoding - single process benchmark

Reports the number of MP3 songs, encoded by one CPU core per one minute.
100%
83.5%

    AMD A8-3870K           AMD FX-6100

PCMark2002 CPU score benchmark

100%
77.3%

Super PI (1M) benchmark

Measures time, required to calculate the first 1 million digits after the decimal point in the number Pi.
100%
92.5%

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%
97.9%


A8-3870K vs FX-6100 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 A8-3870K           AMD FX-6100

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%
98.5%

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%
97.9%

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%
86.8%

Blowfish encryption benchmark

Reports encryption speed of pre-defined 32KB text block. The data is encrypted using Blowfish algorithm.
100%
96.3%

CINEBENCH R10 CPU score benchmark

Measures performance of multi-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
100%
96.0%

    AMD A8-3870K           AMD FX-6100

CINEBENCH R10 render time (seconds) benchmark

Measures time taken to render a photo-realistic 3D image using CINEMA 4D software engine.
100%
96.0%

CrystalMark ALU benchmark

100%
86.5%

CrystalMark FPU benchmark

100%
73.4%

Euler3D benchmark

100%
89.6%

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%
91.9%

    AMD A8-3870K           AMD FX-6100

Fritz Chess Benchmark benchmark

100%
89.6%

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%
78.8%

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%
70.8%

LAME MP3 encoding - multiple processes benchmark

Reports the number of MP3 songs, encoded by all CPU cores per one minute.
100%
89.7%

MySQL 5.0.27 - selecting data benchmark

Shows the number of SQL requests per second served by MySQL server v5.0.27, running on the same computer. This test does not scale beyond 6 CPU cores.
100%
70.3%

    AMD A8-3870K           AMD FX-6100

PCMark05 CPU score benchmark

100%
80.4%

PCMark05 score benchmark

100%
91.7%

Sandra Dhrystone (MIPS) benchmark

Runs Dhrystone test on all cores, and reports estimated integer performance in MIPS (Millions of Instructions Per Second).
100%
99.7%

Sandra MultiMedia Floating Point (it/s) benchmark

100%
81.0%

Sandra MultiMedia Integer (it/s) benchmark

100%
96.7%

    AMD A8-3870K           AMD FX-6100

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%
66.0%

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%
86.0%

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%
82.2%

wPrime v1.55 (32M) benchmark

wPrime benchmark measures time taken to calculate square roots of numbers from 1 to 33554431.
100%
94.3%


A8-3870K vs FX-6100 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 A8-3870K           AMD FX-6100

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%
98.3%

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%
97.6%

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%
87.3%

CINEBENCH R10 OpenGL score benchmark

100%
98.8%

PCMark05 Graphics score benchmark

100%
97.6%


A8-3870K vs FX-6100 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 A8-3870K           AMD FX-6100

7Zip compressing/decompressing speed (1 thread) benchmark

100%
79.4%

CrystalMark Memory benchmark

100%
92.8%

PCMark05 Memory score benchmark

100%
94.5%

PCMark2002 Memory score benchmark

100%
85.3%

WinRAR compressing/decompressing speed benchmark

100%
73.5%

CPUIDs

The table below compares two random CPUID records for AMD A8-3870K and AMD FX-6100 microprocessors, that were submitted to our CPUID database.

  CPUID 1 CPUID 2
ManufacturerAMD
CPU FamilyA8-SeriesFX-Series
Model / Processor NumberA8-3870KFX-6100
Frequency3000 MHz3311 MHz
CWID version0.4
Part numberAD3870WNZ43GXFD6100WMW6KGU
S-Spec / Stepping CodeDA 1149PGSFA 1137GPM
 
General information
VendorAuthenticAMD
Processor name (BIOS)AMD A8-3870 APU with Radeon(tm) HD GraphicsAMD FX(tm)-6100 Six-Core Processor
Cores46
Compute units 3
Logical processors46
Processor typeOriginal OEM Processor
Core steppingLN-B0OR-B2
CPUID signature300F10600F12
Family18 (012h)21 (015h)
Model 1 (01h)
Stepping 0 (00h) 2 (02h)
Socket AM3+
 
Cache
L1 data: Associativity2-way set associative4-way set associative
L1 data: Line size64 bytes
L1 data: Lines per tag1
L1 data: Size4 x 64 KB6 x 16 KB
L1 instruction: Associativity2-way set associative
L1 instruction: Comments 1 cache per 2 cores
L1 instruction: Line size64 bytes
L1 instruction: Lines per tag1
L1 instruction: Size4 x 64 KB3 x 64 KB
L2: Associativity16-way set associative
L2: Comments 1 cache per 2 cores
L2: Line size64 bytes
L2: Lines per tag1
L2: Size4 x 1 MB3 x 2 MB
L3: Associativity 64-way set associative
L3: Line size 64 bytes
L3: Lines per tag 1
L3: Size 8 MB
 
Instruction set extensions
3DNow!+-
AES-+
AMD extensions to MMX+
AVX-+
Extensions to 3DNow!+-
FMA4-+
MMX+
SSE+
SSE2+
SSE3+
SSE4.1-+
SSE4.2-+
SSE4A+
SSSE3-+
XOP-+
 
Additional instructions
Advanced Bit manipulation+
CLFLUSH+
CMOV+
CMPXCHG16B+
CMPXCHG8B+
FXSAVE/FXRSTORE+
MONITOR/MWAIT+
PCLMULDQ-+
POPCNT+
PREFETCH/PREFETCHW+
RDTSCP+
SKINIT / STGI support+
SYSCALL/SYSRET+
SYSENTER/SYSEXIT+
XSAVE / XRESTORE states-+
 
Major features
64-bit / Intel 64+
NX bit/XD-bit+
On-chip Floating Point Unit+
PowerNow! / Cool'n'Quiet+
Secure Virtual Machine (Virtualization)+
Turbo Core-+
 
Other features
1 GB large page support+
100MHz multiplier control+
128-bit SSE instructions+
36-bit page-size extensions+
Advanced programmable interrupt controller+
Core multi-processing legacy mode+
Debugging extensions+
Extended APIC space+
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)+
Physical address extensions+
SVM lock+
Software thermal control+-
Support for NRIP save+
THERMTRIP+
TSC rate is ensured to be invariant across all states+
Temperature sensor+
Time stamp counter+
Virtual 8086-mode enhancements+
Watchdog timer support+
+ - feature is supported
- - feature is not supported
Features, not supported by all processors in the table, are not displayed

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