AMD Athlon II X4 640 

Released May, 2010
  • 3 GHz
  • Quad core
3.6 Out of 10

After a 27.5% boost in the speed of the CPU we noticed a boost in the overall score of ~1100 3dMarks, but what was more impressive was the 2,100 3dMark boost in the CPU score!
by Legit Reviews (May, 2010)
3DMark Vantage is the new industry standard PC gaming performance benchmark from Futuremark, newly designed for Windows Vista and DirectX 10.
by Legit Reviews (May, 2010)

CPUBoss Review Our evaluation of the AMD Athlon II X4 640 among desktop CPUs (over 75W)


Benchmark performance using all cores

Athlon II X4 640
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Athlon II X4 640
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Athlon II X4 640
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Athlon II X4 640
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Athlon II X4 640
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


Are you paying a premium for performance?

Athlon II X4 640
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


CPUBoss Score

Combination of all six facets

Athlon II X4 640

Benchmarks Real world tests of the AMD Athlon II X4 640

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Athlon II X4 640

GeekBench 3 (Single core) Data courtesy Primate Labs

Athlon II X4 640

GeekBench 3 (AES single core) Data courtesy Primate Labs

Athlon II X4 640
121,100 MB/s
Phenom II X4 965
137,800 MB/s
Phenom II X4 955
129,850 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Athlon II X4 640

GeekBench (64-bit) Data courtesy Primate Labs

Athlon II X4 640


Athlon II X4 640

PassMark Data courtesy Passmark

Athlon II X4 640

PassMark (Single Core)

Athlon II X4 640

Reviews Word on the street for the AMD Athlon II X4 640

The only bad thing would be that I couldn't get past 3.6GHz with it but hell it was 100 and out performed the Q6700 I paid 250 for two years before.

What People Are Saying Give it to me straight

Socket Type

By cranking the voltage up to 1.575V in the motherboard's BIOS we were able to get the FSB up to 255MHz and the system to an overclock of 3825MHz.
by Legit Reviews (May, 2010)
Two of the Corsair Dominator memory modules were run in dual channel mode at 1600MHz with 8,8,8,24 timings.
by Legit Reviews (May, 2010)
The ASRock 890GX was running the latest Bios version 1.8.
by Legit Reviews (May, 2010)


The ASRock 890GX Extreme3 motherboard that we used for testing had a fairly decent BIOS that allows you to overclock a processor like the Athlon II X4 635 quickly and easily.
by Legit Reviews (May, 2010)
We should also point out that the AMD Athlon II X4 630 processor that we reviewed back in September 2009 was able to reach 3.85GHz with 1.55V. It would appear that the AMD Athlon II X4 series can get to roughly 3.8GHz with a little work and a good overclocking motherboard as we've had a few of them up at this clock frequency now on just air cooling.
by Legit Reviews (May, 2010)
The ASRock X58 Extreme3 motherboard was running BIOS version 1.4.
by Legit Reviews (May, 2010)


The game also will have hardware tessellation that is said to improve the appearance of water and other surfaces, as well as crowd animations.
by Legit Reviews (May, 2010)
All in game settings were set to their maximum.
by Legit Reviews (May, 2010)
From desktops and laptops to workstations and gaming rigs, by comparing your PCMark Vantage score with other similar systems you can find the hardware and software bottlenecks that stop you getting more from your PC.
by Legit Reviews (May, 2010)


The drawback to this benchmark is that it doesn't take multi core performance into account.
by Legit Reviews (May, 2010)
Typically speaking the performance of memory will go up with a faster CPU, though it didn't here.
by Legit Reviews (May, 2010)
Granted, the Intel system did lead on all the tests, but the performance wasn't anywhere near double like the price is.
by Legit Reviews (May, 2010)


A PcMark score is a measure of your computer’s performance across a variety of common tasks such as viewing and editing photos, video, music and other media, gaming, communications, productivity and security.
by Legit Reviews (May, 2010)
Batman: Arkham Asylum is an action-adventure stealth video game based on DC Comics' Batman for PlayStation 3, Xbox 360 and Microsoft Windows.
by Legit Reviews (May, 2010)
Pair it with a system board like the ASRock 890GX Extreme3 that we used today and you have the base for a solid gaming or multi-media system.
by Legit Reviews (May, 2010)

Specifications Full list of technical specs


Clock speed 3 GHz
Cores Quad core
Socket type AM3
Is unlocked No


Has a NX bit Yes
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. 3DNow!
  5. SSE4a
  6. SSE3
Supports dynamic frequency scaling Yes

integrated graphics

GPU None


Architecture x86-64
Threads 4 threads
L2 cache 2 MB
L2 cache per core 0.5 MB/core
L3 cache 0 MB
L3 cache per core 0 MB/core
Manufacture process 45 nm
Max CPUs 1
Voltage range 1.05 - 1.4V
Operating temperature Unknown - 71°C


Overclock popularity 36
Overclock review score 4.5
Overclocked clock speed 3.57 GHz
Overclocked clock speed (Water) 3.89 GHz
PassMark (Overclocked) 2,020.8
Overclocked clock speed (Air) 3.57 GHz

power consumption

Annual home energy cost 22.89 $/year
Annual commercial energy cost 83.22 $/year
Performance per watt 1.54 pt/W
Typical power consumption 77.19W


Clock speed 2,000 MHz
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Showing 1 comment.
Badest CPU i ve ever seen. Cant even run BF4 on Ultra...
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