AMD Athlon II X4 640 | AMD Sempron 2650 | |
CPU comparisonIn this CPU comparison, we compare the AMD Athlon II X4 640 and the AMD Sempron 2650 and use benchmarks to check which processor is faster.
We compare the AMD Athlon II X4 640 4 core processor released in Q2/2010 with the AMD Sempron 2650 which has 2 CPU cores and was introduced in Q2/2014. |
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AMD Athlon II (52) | Family | AMD Sempron (2) |
AMD Athlon II X4 (Propus) (10) | CPU group | AMD Sempron 2000/3000 (2) |
1 | Generation | 1 |
Propus | Architecture | Kabini (Jaguar) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
AMD Athlon II X4 740 | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Athlon II X4 640 is a 4 core processor with a clock frequency of 3.00 GHz. The processor can compute 4 threads at the same time. The AMD Sempron 2650 clocks with 1.45 GHz, has 2 CPU cores and can calculate 2 threads in parallel. |
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AMD Athlon II X4 640 | Characteristic | AMD Sempron 2650 |
4 | Cores | 2 |
4 | Threads | 2 |
normal | Core architecture | normal |
No | Hyperthreading | No |
No | Overclocking ? | No |
3.00 GHz | Frequency | 1.45 GHz |
-- | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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no iGPU | GPU | AMD Radeon HD 8240 |
GPU frequency | 0.40 GHz | |
-- | GPU (Turbo) | -- |
-- | GPU Generation | 5 |
Technology | 28 nm | |
Max. displays | 2 | |
-- | Compute units | 2 |
-- | Shader | 128 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 2 GB |
-- | DirectX Version | 11.1 |
Hardware codec supportA 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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no iGPU | GPU | AMD Radeon HD 8240 |
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 & PCIeUp to 16 GB of memory in a maximum of 2 memory channels is supported by the AMD Athlon II X4 640, while the AMD Sempron 2650 supports a maximum of 8 GB of memory with a maximum memory bandwidth of 10.7 GB/s enabled. |
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AMD Athlon II X4 640 | Characteristic | AMD Sempron 2650 |
DDR3-1333 | Memory | DDR3L-1333 |
16 GB | Max. Memory | 8 GB |
2 (Dual Channel) | Memory channels | 1 (Single Channel) |
21.3 GB/s | Max. Bandwidth | 10.7 GB/s |
No | ECC | No |
2.00 MB | L2 Cache | 1.00 MB |
-- | L3 Cache | -- |
2.0 | PCIe version | 2.0 |
-- | PCIe lanes | 4 |
-- | PCIe Bandwidth | 2.0 GB/s |
Thermal ManagementThe AMD Athlon II X4 640 has a TDP of 95 W. The TDP of the AMD Sempron 2650 is 25 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD Athlon II X4 640 | Characteristic | AMD Sempron 2650 |
95 W | TDP (PL1 / PBP) | 25 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 90 °C |
Technical detailsThe AMD Athlon II X4 640 has 2.00 MB cache and is manufactured in 45 nm. The cache of AMD Sempron 2650 is at 1.00 MB. The processor is manufactured in 28 nm. |
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AMD Athlon II X4 640 | Characteristic | AMD Sempron 2650 |
45 nm | Technology | 28 nm |
Unknown | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
MMX, 3DNow!, SSE3, SSE4a | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX |
AM3 | Socket | AM1 |
AMD-V | Virtualization | AMD-V |
No | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q2/2010 | Release date | Q2/2014 |
-- | Release price | 26 $ |
show more data | show more data | |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
@ 0.00 GHz |
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AMD Sempron 2650
AMD Radeon HD 8240 @ 0.40 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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AMD Sempron 2650
2C 2T @ 1.45 GHz |
Devices using this processor |
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AMD Athlon II X4 640 | AMD Sempron 2650 |
Unknown | Unknown |