CPU comparison with benchmarks
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-VS- |
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CPU lineage |
AMD Athlon II X4 651K or AMD Athlon II X4 651K – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes. The AMD Athlon II X4 651K features 4 processor cores and has the capability to manage 4 threads concurrently. It was released in Q4/2011 and belongs to the 2 generation of the AMD Athlon II series. To use the AMD Athlon II X4 651K, you'll need a motherboard with a FM1 socket. The AMD A8-7650K features 4 processor cores and has the capability to manage 4 threads concurrently. It was released in Q1/2014 and belongs to the 4 generation of the AMD A series. To use the AMD A8-7650K, you'll need a motherboard with a FM2+ socket.
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AMD Athlon II X4 651K |
Name |
AMD A8-7650K |
AMD Athlon II |
Family |
AMD A |
Desktop / Server |
Segment |
Mobile |
2 |
Generation |
4 |
AMD Athlon II X4 (Llano) |
Group |
AMD A8-7000 |
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CPU Cores and Base Frequency |
The AMD Athlon II X4 651K has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD Athlon II X4 651K is 3.0 GHz The AMD A8-7650K has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A8-7650K is 3.3 GHz and turbo frequency for one core is 3.8 GHz.
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None |
None |
3.8 GHz |
No |
Hyperthreading |
No |
Yes |
Overclocking |
Yes |
4 |
Threads |
4 |
normal |
Core architecture |
normal |
3.0 GHz |
Frequency |
3.3 GHz |
4x |
Cores |
4x |
None |
None |
3.8 GHz |
4 |
CPU Cores |
4 |
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Internal Graphics |
The AMD Athlon II X4 651K does not have integrated graphics. The AMD A8-7650K has integrated graphics, called iGPU for short. Specifically, the AMD A8-7650K uses the AMD Radeon R7 - 384 (Kaveri), which has 384 texture shaders and 6 execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
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-- |
Direct X |
12 |
-- |
GPU (Turbo) |
-- |
0 bytes |
Max. GPU Memory |
2.0 GB |
-- |
Generation |
6 |
-- |
Execution units |
6 |
-- |
Shaders |
384 |
-- |
Max. displays |
-- |
-- |
Release date |
Q1/2015 |
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GPU name |
AMD Radeon R7 - 384 (Kaveri) |
-- |
GPU frequency |
0.72 GHz |
-- |
Technology |
28 nm |
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Artificial Intelligence and Machine Learning |
-- |
AI hardware |
-- |
-- |
AI specifications |
-- |
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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.
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JPEG |
Decode / Encode |
-- |
VC-1 |
Decode |
-- |
h264 |
Decode |
-- |
h265 / HEVC (8 bit) |
No |
-- |
h265 / HEVC (10 bit) |
No |
-- |
AV1 |
No |
-- |
AVC |
Decode |
-- |
VP8 |
No |
-- |
VP9 |
No |
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Memory & PCIe |
The processor supports a maximum memory capacity of 16.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.3 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
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No |
AES-NI |
Yes |
16.0 GB |
Max. Memory |
0 bytes |
2 |
Memory channels |
2 |
21.3 GB/s |
Bandwidth |
-- |
DDR3-1333 |
Memory type |
DDR3-2133 |
No |
ECC |
Yes |
pci |
PCIe |
pci |
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Thermal Management |
The processor has a thermal design power (TDP) of 100 W watts. TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself. The processor has a thermal design power (TDP) of 95 W watts.
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-- |
Tjunction max |
-- |
100 W |
TDP (PL1 / PBP) |
95 W |
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Technical details |
The AMD Athlon II X4 651K is manufactured using a 32 nm process. A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming. The AMD A8-7650K is manufactured using a 28 nm process. In total, this processor boasts a generous 4.0 MB cache.
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Chip design |
-- |
0 bytes |
L3-Cache |
4.0 MB |
-- |
Release price |
95 $ |
Llano |
Architecture |
Kaveri (Steamroller) |
x86-64 (64 bit) |
Instruction set (ISA) |
x86-64 (64 bit) |
AMD-V |
Virtualization |
AMD-V |
FM1 |
Socket |
FM2+ |
Windows 10, Linux |
Operating systems |
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Technical data sheet |
Documents |
Technical data sheet |
Q4/2011 |
Release date |
Q1/2014 |
-- |
Part Number |
-- |
SSE3, SSE4a, MMX, 3DNow! |
ISA extensions |
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
4.0 MB |
L2-Cache |
0 bytes |
32 nm |
Technology |
28 nm |
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