AMD Phenom II X2 565 | AMD Athlon II X4 638 | |
CPU comparisonAMD Phenom II X2 565 or AMD Athlon II X4 638 - 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 Phenom II X2 565 has 2 cores with 2 threads and clocks with a maximum frequency of 3.40 GHz. Up to GB of memory is supported in 2 memory channels. The AMD Phenom II X2 565 was released in Q4/2010. The AMD Athlon II X4 638 has 4 cores with 4 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The AMD Athlon II X4 638 was released in Q1/2012. |
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AMD Phenom II (52) | Family | AMD Athlon II (52) |
AMD Phenom II - 545 (9) | CPU group | AMD Athlon II X4 (Llano) (5) |
2 | Generation | 2 |
Callisto (K10) | Architecture | Llano |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Phenom II X2 565 has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the AMD Phenom II X2 565 is 3.40 GHz while the AMD Athlon II X4 638 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Athlon II X4 638 is at 2.70 GHz. |
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AMD Phenom II X2 565 | Characteristic | AMD Athlon II X4 638 |
2 | Cores | 4 |
2 | Threads | 4 |
normal | Core architecture | normal |
No | Hyperthreading | No |
Yes | Overclocking ? | No |
3.40 GHz | Frequency | 2.70 GHz |
-- | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD Phenom II X2 565 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is 21.3 GB/s. The AMD Athlon II X4 638 supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s. |
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AMD Phenom II X2 565 | Characteristic | AMD Athlon II X4 638 |
DDR3-1333, DDR2-1066 | Memory | DDR3-1333 |
Max. Memory | 16 GB | |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
21.3 GB/s | Max. Bandwidth | 21.3 GB/s |
No | ECC | No |
-- | L2 Cache | 4.00 MB |
6.00 MB | L3 Cache | -- |
-- | PCIe version | 2.0 |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Phenom II X2 565 is 80 W, while the AMD Athlon II X4 638 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD Phenom II X2 565 | Characteristic | AMD Athlon II X4 638 |
80 W | TDP (PL1 / PBP) | 65 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe AMD Phenom II X2 565 is manufactured in 45 nm and has 6.00 MB cache. The AMD Athlon II X4 638 is manufactured in 32 nm and has a 4.00 MB cache. |
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AMD Phenom II X2 565 | Characteristic | AMD Athlon II X4 638 |
45 nm | Technology | 32 nm |
Unknown | Chip design | Unknown |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE3, SSE4a | ISA extensions | MMX, 3DNow!, SSE3, SSE4a |
AM3 | Socket | FM1 |
AMD-V | Virtualization | AMD-V |
No | AES-NI | No |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q4/2010 | Release date | Q1/2012 |
-- | Release price | -- |
show more data | show more data | |
AMD Phenom II X2 565
2C 2T @ 3.40 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
AMD Phenom II X2 565
2C 2T @ 3.40 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
AMD Phenom II X2 565
2C 2T @ 3.40 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
AMD Phenom II X2 565
2C 2T @ 3.40 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
AMD Phenom II X2 565
2C 2T @ 3.40 GHz |
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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
Devices using this processor |
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AMD Phenom II X2 565 | AMD Athlon II X4 638 |
Unknown | Unknown |