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| AMD Athlon II X4 651 vs A8 3870K |
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Released December, 2011
AMD A8 3870K
- 3 GHz
- Quad core
- Unlocked
Reasons to buy the A8 3870K
![]() | Has a built-in GPU Yes |
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
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CPUBoss is not aware of any important advantages of the Athlon II X4 651 vs the A8 3870K. | |||||||
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Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required |
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Benchmarks Real world tests of Athlon II X4 651 vs A8 3870K
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Athlon II X4 651
5,570
A8 3870K
5,602
GeekBench 3 (Single core) Data courtesy Primate Labs
Athlon II X4 651
1,558
A8 3870K
1,597
GeekBench 3 (AES single core) Data courtesy Primate Labs
Athlon II X4 651
125,700 MB/s
A8 3870K
126,200 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Athlon II X4 651
5,328
A8 3870K
5,339
GeekBench
Athlon II X4 651
5,328
A8 3870K
7,554
3D Mark 11 (Physics)
Athlon II X4 651
2,890
A8 3870K
1,102
PassMark Data courtesy Passmark
Athlon II X4 651
3,569
A8 3870K
3,596
PassMark (Single Core)
Athlon II X4 651
1,049
A8 3870K
1,032
Specifications Full list of technical specs
summary | Athlon II X4 651 | vs | A8 3870K |
---|---|---|---|
Clock speed | 3 GHz | 3 GHz | |
Cores | Quad core | Quad core | |
Socket type | |||
FM1 | |||
features | |||
Has a NX bit | Yes | Yes | |
Has virtualization support | Yes | Yes | |
Instruction set extensions | |||
SSE4a | |||
SSE2 | |||
MMX | |||
SSE3 | |||
SSE | |||
AMD64 | |||
AMD-V | |||
3DNow! | |||
Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
TDP | 100W | 100W | |
Annual home energy cost | 24.09 $/year | 40.03 $/year | |
Annual commercial energy cost | 87.6 $/year | 138.41 $/year | |
Performance per watt | 1.51 pt/W | 1.03 pt/W | |
Typical power consumption | 81.25W | N/A |
details | Athlon II X4 651 | vs | A8 3870K |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 4 | 4 | |
L2 cache | 4 MB | 4 MB | |
L2 cache per core | 1 MB/core | 1 MB/core | |
Manufacture process | 32 nm | 32 nm | |
Transistor count | 1,178,000,000 | 1,178,000,000 | |
Max CPUs | 1 | 1 | |
Die size | 228 mm² | 228 mm² | |
Voltage range | 0.91 - 1.41V | 0.45 - 1.41V | |
overclocking | |||
Overclocked clock speed | 3.41 GHz | 3.56 GHz | |
Overclocked clock speed (Water) | 3 GHz | 3.67 GHz | |
Overclocked clock speed (Air) | 3.41 GHz | 3.56 GHz | |
integrated graphics | |||
GPU | None | GPU | |
Label | N/A | Radeon™ HD 6550D | |
Latest DirectX | N/A | 11.0 | |
Number of displays supported | N/A | 2 | |
GPU clock speed | N/A | 600 MHz | |
Turbo clock speed | N/A | 600 MHz | |
memory controller | |||
Memory controller | Built-in | Built-in | |
Memory type | |||
DDR3-1866 | |||
DDR3-1600 | |||
DDR3-1333 |
AMD Athlon II X4 651 ![]() | AMD A8 3870K ![]() |
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