AMD A8-6600K vs AMD Phenom II X2 545

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CPU comparison with benchmarks


AMD A8-6600K CPU1 vs CPU2 AMD Phenom II X2 545
AMD A8-6600K AMD Phenom II X2 545

CPU comparison

AMD A8-6600K or AMD Phenom II X2 545 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD A8-6600K has 4 cores with 4 threads and clocks with a maximum frequency of 4.20 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A8-6600K was released in Q2/2013.

The AMD Phenom II X2 545 has 2 cores with 2 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X2 545 was released in Q2/2009.
AMD A (112) Family AMD Phenom II (52)
AMD A8-6000 (4) CPU group AMD Phenom II - 545 (9)
3 Generation 2
Richland (Piledriver) Architecture Callisto (K10)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A8-6600K has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A8-6600K is 3.90 GHz (4.20 GHz) while the AMD Phenom II X2 545 has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the AMD Phenom II X2 545 is at 3.00 GHz.

AMD A8-6600K Characteristic AMD Phenom II X2 545
4 Cores 2
4 Threads 2
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
3.90 GHz Frequency 3.00 GHz
4.20 GHz Turbo Frequency (1 Core) --
4.20 GHz Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD A8-6600K Characteristic AMD Phenom II X2 545
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD A8-6600K or AMD Phenom II X2 545 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.

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

Hardware 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.

AMD Radeon HD 8570D GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The AMD A8-6600K can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 29.9 GB/s. The AMD Phenom II X2 545 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.

AMD A8-6600K Characteristic AMD Phenom II X2 545
DDR3-1866 Memory DDR3-1333, DDR2-1066
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
29.9 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
-- L2 Cache --
4.00 MB L3 Cache 6.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A8-6600K is 100 W, while the AMD Phenom II X2 545 has a TDP of 80 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD A8-6600K Characteristic AMD Phenom II X2 545
100 W TDP (PL1 / PBP) 80 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A8-6600K is manufactured in 32 nm and has 4.00 MB cache. The AMD Phenom II X2 545 is manufactured in 45 nm and has a 6.00 MB cache.

AMD A8-6600K Characteristic AMD Phenom II X2 545
32 nm Technology 45 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE3, SSE4a
FM2 Socket AM3
AMD-V Virtualization AMD-V
Yes AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q2/2013 Release date Q2/2009
85 $ Release price 65 $
show more data show more data


Rate these processors

Here you can rate the AMD A8-6600K to help other visitors make their purchasing decisions. The average rating is 3.0 stars (4 ratings). Rate now:
Here you can rate the AMD Phenom II X2 545 to help other visitors make their purchasing decisions. The average rating is 4.0 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD A8-6600K (100%)
AMD Phenom II X2 545 (79%)
⌀ Multi core performance in 3 CPU benchmarks
AMD A8-6600K (100%)
AMD Phenom II X2 545 (55%)

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 A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
537 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
2C 2T @ 3.00 GHz
398 (74%)

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 A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
1461 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
2C 2T @ 3.00 GHz
723 (49%)

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 A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
2959 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
2C 2T @ 3.00 GHz
1931 (65%)

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 A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
94 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
2C 2T @ 3.00 GHz
79 (84%)

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 A8-6600K AMD A8-6600K
4C 4T @ 4.20 GHz
306 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
2C 2T @ 3.00 GHz
152 (50%)

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 A8-6600K AMD A8-6600K
AMD Radeon HD 8570D @ 0.84 GHz
432 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
@ 0.00 GHz
0 (0%)

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 A8-6600K AMD A8-6600K
4C 4T @ 3.90 GHz
771 (100%)
AMD Phenom II X2 545 AMD Phenom II X2 545
2C 2T @ 3.00 GHz
0 (0%)

Devices using this processor

AMD A8-6600K AMD Phenom II X2 545
Unknown Unknown

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