AMD Athlon II X4 638 vs AMD Phenom II X3 740
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CPU comparison with benchmarks
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| AMD Athlon II X4 638 | AMD Phenom II X3 740 | |
CPU comparisonAMD Athlon II X4 638 or AMD Phenom II X3 740 - 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 Athlon II X4 638 has 4 cores with 4 threads and clocks with a maximum frequency of 2.70 GHz. Up to 16 GB of memory is supported in 2 memory channels. The AMD Athlon II X4 638 was released in Q1/2012. The AMD Phenom II X3 740 has 3 cores with 3 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X3 740 was released in Q3/2010. |
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| AMD Athlon II (52) | Family | AMD Phenom II (52) |
| AMD Athlon II X4 (Llano) (5) | CPU group | AMD Phenom II - 700 (9) |
| 2 | Generation | 3 |
| Llano | Architecture | Heka (K10) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Athlon II X4 638 is a 4 core processor with a clock frequency of 2.70 GHz. The AMD Phenom II X3 740 has 3 CPU cores with a clock frequency of 3.00 GHz. |
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| AMD Athlon II X4 638 | Characteristic | AMD Phenom II X3 740 |
| 4 | Cores | 3 |
| 4 | Threads | 3 |
| normal | Core architecture | normal |
| No | Hyperthreading | No |
| No | Overclocking ? | Yes |
| 2.70 GHz | Frequency | 3.00 GHz |
| -- | Turbo Frequency (1 Core) | -- |
| -- | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD Athlon II X4 638 supports a maximum of 16 GB of memory in 2 memory channels. The AMD Phenom II X3 740 can connect up to GB of memory in 2 memory channels. |
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| AMD Athlon II X4 638 | Characteristic | AMD Phenom II X3 740 |
| DDR3-1333 | Memory | DDR3-1333, DDR2-1066 |
| 16 GB | Max. Memory | |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 21.3 GB/s | Max. Bandwidth | 21.3 GB/s |
| No | ECC | No |
| 4.00 MB | L2 Cache | -- |
| -- | L3 Cache | 6.00 MB |
| 2.0 | PCIe version | -- |
| -- | PCIe lanes | -- |
| -- | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Athlon II X4 638 has a TDP of 65 W, that of the AMD Phenom II X3 740 is 95 W. |
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| AMD Athlon II X4 638 | Characteristic | AMD Phenom II X3 740 |
| 65 W | TDP (PL1 / PBP) | 95 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe AMD Athlon II X4 638 has a 4.00 MB cache, while the AMD Phenom II X3 740 cache has a total of 6.00 MB. |
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| AMD Athlon II X4 638 | Characteristic | AMD Phenom II X3 740 |
| 32 nm | Technology | 45 nm |
| Unknown | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| MMX, 3DNow!, SSE3, SSE4a | ISA extensions | SSE3, SSE4a |
| FM1 | Socket | AM3 |
| AMD-V | Virtualization | AMD-V |
| No | AES-NI | No |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q1/2012 | Release date | Q3/2010 |
| -- | Release price | -- |
| show more data | show more data | |
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Average performance in benchmarks
⌀ Single core performance in 0 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
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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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
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AMD Phenom II X3 740
3C 3T @ 3.00 GHz |
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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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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
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AMD Phenom II X3 740
3C 3T @ 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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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
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AMD Phenom II X3 740
3C 3T @ 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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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
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AMD Phenom II X3 740
3C 3T @ 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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AMD Athlon II X4 638
4C 4T @ 2.70 GHz |
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AMD Phenom II X3 740
3C 3T @ 3.00 GHz |
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Devices using this processor |
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| AMD Athlon II X4 638 | AMD Phenom II X3 740 |
| Unknown | Unknown |
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