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Intel Core 2 Quad Q8400 vs AMD Athlon II X4 640
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CPU comparison with benchmarks
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| Intel Core 2 Quad Q8400 | AMD Athlon II X4 640 | |
CPU comparisonIn this CPU comparison, we compare the Intel Core 2 Quad Q8400 and the AMD Athlon II X4 640 and use benchmarks to check which processor is faster.
We compare the Intel Core 2 Quad Q8400 4 core processor released in Q2/2009 with the AMD Athlon II X4 640 which has 4 CPU cores and was introduced in Q2/2010. |
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| Intel Core2 Quad (19) | Family | AMD Athlon II (52) |
| Intel Core 2 Quad Q8000/Q9000 (16) | CPU group | AMD Athlon II X4 (Propus) (10) |
| 2 | Generation | 1 |
| Yorkfield (Penryn) | Architecture | Propus |
| Desktop | Segment | Desktop |
| -- | Predecessor | -- |
| -- | Successor | AMD Athlon II X4 740 |
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CPU Cores and Base FrequencyThe Intel Core 2 Quad Q8400 is a 4 core processor with a clock frequency of 2.66 GHz. The processor can compute 4 threads at the same time. The AMD Athlon II X4 640 clocks with 3.00 GHz, has 4 CPU cores and can calculate 4 threads in parallel. |
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| Intel Core 2 Quad Q8400 | Characteristic | AMD Athlon II X4 640 |
| 4 | Cores | 4 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| No | Hyperthreading | No |
| No | Overclocking ? | No |
| 2.66 GHz | Frequency | 3.00 GHz |
| -- | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Memory & PCIeUp to 16 GB of memory in a maximum of 2 memory channels is supported by the Intel Core 2 Quad Q8400, while the AMD Athlon II X4 640 supports a maximum of 16 GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled. |
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| Intel Core 2 Quad Q8400 | Characteristic | AMD Athlon II X4 640 |
| DDR3-1066, DDR2-800 | Memory | DDR3-1333 |
| 16 GB | Max. Memory | 16 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 17.1 GB/s | Max. Bandwidth | 21.3 GB/s |
| No | ECC | No |
| 4.00 MB | L2 Cache | 2.00 MB |
| -- | L3 Cache | -- |
| -- | PCIe version | 2.0 |
| -- | PCIe lanes | -- |
| -- | PCIe Bandwidth | -- |
Thermal ManagementThe Intel Core 2 Quad Q8400 has a TDP of 95 W. The TDP of the AMD Athlon II X4 640 is 95 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| Intel Core 2 Quad Q8400 | Characteristic | AMD Athlon II X4 640 |
| 95 W | TDP (PL1 / PBP) | 95 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Intel Core 2 Quad Q8400 has 4.00 MB cache and is manufactured in 45 nm. The cache of AMD Athlon II X4 640 is at 2.00 MB. The processor is manufactured in 45 nm. |
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| Intel Core 2 Quad Q8400 | Characteristic | AMD Athlon II X4 640 |
| 45 nm | Technology | 45 nm |
| Monolithic | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| MMX, SSE2, SSE3, SSE4.1 | ISA extensions | MMX, 3DNow!, SSE3, SSE4a |
| LGA 775 | Socket | AM3 |
| VT-x, VT-d | Virtualization | AMD-V |
| No | AES-NI | No |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q2/2009 | Release date | Q2/2010 |
| -- | Release price | -- |
| show more data | show more data | |
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4C 4T @ 3.00 GHz buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks
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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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Cinebench R23 (Single-Core)
Cinebench R23 is the successor of Cinebench R20 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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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Cinebench R23 (Multi-Core)
Cinebench R23 is the successor of Cinebench R20 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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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Cinebench R20 (Multi-Core)
Cinebench R20 is the successor of Cinebench R15 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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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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.
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Intel Core 2 Quad Q8400
4C 4T @ 2.66 GHz |
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AMD Athlon II X4 640
4C 4T @ 3.00 GHz |
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Devices using this processor |
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| Intel Core 2 Quad Q8400 | AMD Athlon II X4 640 |
| Unknown | Unknown |
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