AMD Phenom II X4 940 vs AMD A8-6600K

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CPU comparison with benchmarks


AMD Phenom II X4 940 CPU1 vs CPU2 AMD A8-6600K
AMD Phenom II X4 940 AMD A8-6600K
AMD Phenom II Family AMD A
AMD Phenom II - 800/900 CPU group AMD A8-6000
4 Generation 3
Deneb (K10) Architecture Richland (Piledriver)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base FrequencyCPU Cores and Base Frequency

In addition to the number of CPU cores and threads, you can see here whether the AMD Phenom II X4 940 or AMD A8-6600K can be overclocked. You will also find the clock frequencies of the processor (single-core and multi-core) here. The number of CPU cores greatly affects the speed of the processor.

4 Cores 4
4 Threads 4
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
3.00 GHz Frequency 3.90 GHz
-- Turbo Frequency (1 Core) 4.20 GHz
-- Turbo Frequency (All Cores) 4.20 GHz

Internal GraphicsInternal Graphics

The AMD Phenom II X4 940 or AMD A8-6600K has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. A processor with integrated graphics is also called APU (Accelerated Processing Unit).

no iGPU GPU AMD Radeon HD 8570D
GPU frequency 0.84 GHz
GPU (Turbo)
GPU Generation 5
Technology 32 nm
Max. displays 2
Execution units 4
Shader 256
Max. GPU Memory 2 GB
DirectX Version 11.2

Hardware codec supportHardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIeMemory & PCIe

The memory type as well as the amount of memory can greatly affect the speed of the processor. The memory bandwidth depends on several factors and is given in gigabytes per second.

DDR2-1066 Memory DDR3-1866
Max. Memory
2 Memory channels 2
-- Bandwidth --
No ECC No
L2 Cache
6.00 MB L3 Cache 4.00 MB
PCIe version
PCIe lanes

Thermal ManagementThermal Management

The Thermal Design Power (TDP for short) specifies the necessary cooling solution to cool the processor sufficiently. The TDP usually only gives a rough idea of the real consumption of a CPU.

125 W TDP (PL1) 100 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical detailsTechnical details

Here you will find information on the size of the level 2 and level 3 cache of the AMD Phenom II X4 940 or AMD A8-6600K as well as a list of the processors ISA extensions. We have documented the architecture and the manufacturing technology for you as well as the release date.

45 nm Technology 32 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4a ISA extensions SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
AM2+ Socket FM2
AMD-V Virtualization AMD-V
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2009 Release date Q2/2013
show more data show more data



Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
169 (100%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
0 (0%)
Show all Cinebench R20 (Single-Core) results



Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
649 (100%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
0 (0%)
Show all Cinebench R20 (Multi-Core) results



Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
402 (75%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
537 (100%)
Show all Geekbench 5, 64bit (Single-Core) results



Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
1411 (97%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
1461 (100%)
Show all Geekbench 5, 64bit (Multi-Core) results



CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
0 (0%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 3.90 GHz
771 (100%)
Show all CPU-Z Benchmark 17 (Multi-Core) results



iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.

AMD Phenom II X4 940 AMD Phenom II X4 940
@ 0.00 GHz
0 (0%)
AMD A8-6600K AMD A8-6600K
AMD Radeon HD 8570D @ 0.84 GHz
432 (100%)
Show all iGPU - FP32 Performance (Single-precision GFLOPS) results



Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
3738 (100%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
2959 (79%)
Show all Estimated results for PassMark CPU Mark results



Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
78 (83%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
94 (100%)
Show all Cinebench R15 (Single-Core) results



Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
302 (99%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
306 (100%)
Show all Cinebench R15 (Multi-Core) results



Geekbench 3, 64bit (Single-Core)

Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
1602 (76%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
2107 (100%)
Show all Geekbench 3, 64bit (Single-Core) results



Geekbench 3, 64bit (Multi-Core)

Geekbench 3 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
5610 (93%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
6038 (100%)
Show all Geekbench 3, 64bit (Multi-Core) results



Cinebench R11.5, 64bit (Single-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
0.9 (93%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
0.97 (100%)
Show all Cinebench R11.5, 64bit (Single-Core) results



Cinebench R11.5, 64bit (Multi-Core)

Cinebench 11.5 is based on the Cinema 4D Suite, a software that is popular to generate forms and other stuff in 3D. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.

AMD Phenom II X4 940 AMD Phenom II X4 940
4C 4T @ 3.00 GHz
3.55 (100%)
AMD A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
3.43 (97%)
Show all Cinebench R11.5, 64bit (Multi-Core) results



Devices using this processorDevices using this processor

AMD Phenom II X4 940 AMD A8-6600K
Unknown Unknown

Leaderboards

In our leaderboards, we have clearly compiled the best processors for specific categories for you. The leaderboards are always up to date and are regularly updated by us. The best processors are selected according to popularity and speed in benchmarks as well as the price-performance ratio.


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