AMD Athlon II X4 640 vs Phenom II X6 1055T (125W)

Mini Review

AMD Athlon II X4 640 advantages



AMD Athlon II X4 640
  • Power consumption of this microprocessor is better.

AMD Phenom II X6 1055T (125W) advantages



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  • In single-threaded tasks, the AMD 1055T has 15% higher performance.
  • In multi-threaded programs, the processor has 43% better performance.
  • Memory performance of the microprocessor is better.

640 vs 1055T performance comparison

The charts below show relative performance of Athlon II X4 640 and Phenom II X6 1055T (125W) microprocessors in various kinds of applications. The numbers for 'Single-threaded performance' and 'Multi-threaded performance' charts are calculated as an average of several related benchmarks, that you can view in the "Benchmarks" tab. As a result, the shown results may differ from results, that you may receive in individual tests. The 'Overall performance' chart shows an average of all-around performance benchmarks, and benchmarks, specific to each type of program.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.15
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.43
 
 
Higher is better
Memory-intensive applications
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.45
 
 
Higher is better
Overall performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.33
 
 
Higher is better

  - AMD Athlon II X4 640       - AMD Phenom II X6 1055T (125W)

Please see the "Benchmarks" tab for complete list of benchmarks, demonstrating performance difference between AMD 640 and 1055T in various types of applications.


640 vs 1055T power consumption comparison

Thermal Design Power
200
160
120
80
40
0
 
 
95W
 
125W
 
 
Lower is better
 

Detailed side by side comparison of Athlon II X4 640 vs Phenom II X6 1055T (125W) specs can be found in the "Specifications" tab. Much more detailed comparison of internal features of both processors you will find in the "CPUIDs" tab.


Pros and Cons summary

Athlon II X4 640 Phenom II X6 1055T (125W)
General recommendations:
Needs less power
  General recommendations:
Performs somewhat faster in all application types

Drawbacks:

Moderatly slower overall performance
 

Drawbacks:

Requires somewhat more power

Similar processors

Athlon II X4 640 Phenom II X6 1055T (125W)
 

Similar microprocessors are based on the same core and fit the same socket as Athlon II X4 640 and 1055T.


Where to buy


These CPUs are no longer manufactured. Hence, the best place to look for them is eBay. Third party sellers at Amazon may also carry them.
Jump to:
  • Benchmarks
  • CPUIDs
  • Comments
 

Popular comparisons:

More comparisons

Compare AMD Athlon II X4 640 with...

Other Phenom II X6 CPU:

Any CPU:


Compare AMD Phenom II X6 1055T (125W) with...

Other Athlon II X4 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 Athlon II X4 640 and AMD Phenom II X6 1055T (125W) pages for more complete specifications of both microprocessors.

 AMD Athlon II X4 640AMD Phenom II X6 1055T (125W)
Market segmentDesktop
ManufacturerAMD
FamilyAthlon II X4Phenom II X6
Basic details
Model number6401055T
CPU part numberADX640WFK42GMHDT55TFBK6DGR
Box part numberADX640WFGMBOXHDT55TFBGRBOX
Introduction dateMay 10, 2010April 27, 2010
Current official price$67 (as of Mar 2014) 
 
CPU features
Core namePropusThuban
Platform name Leo
MicroarchitectureK10
Technology (micron)0.045
Data width (bits)64
SocketSocket AM2+ / Socket AM3Socket AM3
Frequency (MHz)30002800
Turbo Frequency (MHz) 3300 / 3300 / 3300 / - / - / -
Bus speed (MHz)2000 (HT/QPI)
Clock Multiplier1514
L1 cache256 KB (code) / 256 KB (data)384 KB (code) / 384 KB (data)
L2 cache (KB)20483072
L3 cache (KB) 6144
Max temperature (°C)55 - 7155 - 62
TDP (Watt)95125
Core voltage (V)1.1 - 1.41.15 - 1.475
Cores46
Threads46
Multiprocessing1
 
Instruction set extensions
3DNow!+
AMD64 / EM64T 64-bit technology+
MMX+
SSE+
SSE2+
SSE3+
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Turbo Core / Turbo Boost-+
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeNone
 
Integrated Memory Controller(s)
The number of controllers1
Memory channels2
Channel width (bits)72
Supported memoryDDR2-1066, DDR3-1333
DIMMs per channelup to 2
Maximum memory bandwidth (GB/s)21.3
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "AMD Athlon II X4 640" or "AMD Phenom II X6 1055T (125W)" parts please click on the links in the table header.

Benchmarks

System setup

Below is a complete set of AMD Athlon II X4 640 and 1055T (125W) benchmarks from our CPU benchmark database. Both microprocessors were tested on ASRock M3A780GXH/128M motherboard with 2 GB dual-channel Corsair CM3X1024-1333C9 DDR3 memory, and Powercolor 24PRO256M DDR2 (ATI Radeon HD2400) graphics.

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.


Athlon II X4 640 vs 1055T (125W) 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 Athlon II X4 640           AMD Phenom II X6 1055T (125W)

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%
86.3%

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%
91.3%

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%
88.8%

LAME MP3 encoding - single process benchmark

Reports the number of MP3 songs, encoded by one CPU core per one minute.
100%
91.3%

Super PI (1M) benchmark

Measures time, required to calculate the first 1 million digits after the decimal point in the number Pi.
100%
78.6%

    AMD Athlon II X4 640           AMD Phenom II X6 1055T (125W)

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%
86.6%


Athlon II X4 640 vs 1055T (125W) 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 Athlon II X4 640           AMD Phenom II X6 1055T (125W)

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%
89.6%

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%
83.2%

Blowfish encryption benchmark

Reports encryption speed of pre-defined 32KB text block. The data is encrypted using Blowfish algorithm.
100%
69.4%

CINEBENCH R10 CPU score benchmark

Measures performance of multi-core rendering of a photo-realistic 3D image using CINEMA 4D software engine.
100%
71.1%

CINEBENCH R10 render time (seconds) benchmark

Measures time taken to render a photo-realistic 3D image using CINEMA 4D software engine.
100%
71.0%

    AMD Athlon II X4 640           AMD Phenom II X6 1055T (125W)

CrystalMark ALU benchmark

100%
93.1%

CrystalMark FPU benchmark

100%
93.6%

Euler3D benchmark

100%
64.0%

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%
71.4%

Fritz Chess Benchmark benchmark

100%
71.8%

    AMD Athlon II X4 640           AMD Phenom II X6 1055T (125W)

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%
70.3%

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%
67.8%

LAME MP3 encoding - multiple processes benchmark

Reports the number of MP3 songs, encoded by all CPU cores per one minute.
100%
71.4%

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%
75.2%

Sandra Dhrystone (MIPS) benchmark

Runs Dhrystone test on all cores, and reports estimated integer performance in MIPS (Millions of Instructions Per Second).
100%
71.5%

    AMD Athlon II X4 640           AMD Phenom II X6 1055T (125W)

Sandra MultiMedia Floating Point (it/s) benchmark

100%
71.4%

Sandra MultiMedia Integer (it/s) benchmark

100%
71.1%

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%
71.5%

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%
71.4%

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%
70.1%

    AMD Athlon II X4 640           AMD Phenom II X6 1055T (125W)

wPrime v1.55 (32M) benchmark

wPrime benchmark measures time taken to calculate square roots of numbers from 1 to 33554431.
100%
71.8%


Athlon II X4 640 vs 1055T (125W) 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 Athlon II X4 640           AMD Phenom II X6 1055T (125W)

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%
98.6%

CINEBENCH R10 OpenGL score benchmark

100%
95.2%


Athlon II X4 640 vs 1055T (125W) 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 Athlon II X4 640           AMD Phenom II X6 1055T (125W)

7Zip compressing/decompressing speed (1 thread) benchmark

100%
99.4%

CrystalMark Memory benchmark

100%
99.2%

WinRAR compressing/decompressing speed benchmark

100%
69.0%

CPUIDs

The table below compares two random CPUID records for AMD Athlon II X4 640 and AMD Phenom II X6 1055T (125W) microprocessors, that were submitted to our CPUID database.

  CPUID 1 CPUID 2
ManufacturerAMD
CPU FamilyAthlon II X4Phenom II X6
Model / Processor Number6401055T
Frequency2993 MHz2793 MHz
CWID version0.4
Part numberADX640WFK42GMHDT55TFBK6DGR
S-Spec / Stepping CodeCADHC AD 1007DPCWCCBBE CB 1013CPCW
 
General information
VendorAuthenticAMD
Processor name (BIOS)AMD Athlon(tm) II X4 640 ProcessorAMD Phenom(tm) II X6 1055T Processor
Processor name (CWID) Phenom II(tm) X6 1055T
Cores46
Logical processors46
Processor typeOriginal OEM Processor
Core steppingBL-C3PH-E0
CPUID signature100F53100FA0
Family16 (010h)
Model 5 (05h)10 (0Ah)
Stepping 3 (03h) 0 (00h)
 
Cache
L1 data: Associativity2-way set associative
L1 data: Line size64 bytes
L1 data: Lines per tag1
L1 data: Size4 x 64 KB6 x 64 KB
L1 instruction: Associativity2-way set associative
L1 instruction: Line size64 bytes
L1 instruction: Lines per tag1
L1 instruction: Size4 x 64 KB6 x 64 KB
L2: Associativity16-way set associative
L2: Line size64 bytes
L2: Lines per tag1
L2: Size4 x 512 KB6 x 512 KB
L3: Associativity 48-way set associative
L3: Line size 64 bytes
L3: Lines per tag 1
L3: Size 6 MB
 
Instruction set extensions
3DNow!+
AMD extensions to MMX+
Extensions to 3DNow!+
MMX+
SSE+
SSE2+
SSE3+
SSE4A+
 
Additional instructions
Advanced Bit manipulation+
CLFLUSH+
CMOV+
CMPXCHG16B+
CMPXCHG8B+
FXSAVE/FXRSTORE+
MONITOR/MWAIT+
POPCNT+
PREFETCH/PREFETCHW+
RDTSCP+
SKINIT / STGI support+
SYSCALL/SYSRET+
SYSENTER/SYSEXIT+
 
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+
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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