| Name: | AMD Athlon II X4 638 |
| Family: | AMD Athlon II |
| Group: | AMD Athlon II X4 (Llano) |
| Segment: | Desktop / Server |
| Generation: | 2 |
AMD Athlon II X4 638 Benchmark, Test and specs
Last updated:
CPU lineage
The AMD Athlon II X4 638 features 4 processor cores and has the capability to manage 4 threads concurrently. It was released in Q1/2012 and belongs to the 2 generation of the AMD Athlon II series. To use the AMD Athlon II X4 638, you'll need a motherboard with a FM1 socket.
CPU Cores and Base Frequency
The AMD Athlon II X4 638 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD Athlon II X4 638 is 2.7 GHz
| CPU Cores: | 4 |
| Threads: | 4 |
| Cores: | 4x |
| Core architecture: | normal |
| Hyperthreading: | No |
| Overclocking: | No |
| Frequency: | 2.7 GHz |
Memory & PCIe
The processor supports a maximum memory capacity of 16.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 21.3 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
| Memory type: | DDR3-1333 |
| Max. Memory: | 16.0 GB |
| Memory channels: | 2 |
| Bandwidth: | 21.3 GB/s |
| ECC: | No |
| PCIe: | pci |
| AES-NI: | No |
Thermal Management
The processor has a thermal design power (TDP) of 65 W watts. TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
| TDP (PL1 / PBP): | 65 W |
| TDP (PL2): | None |
| TDP up: | None |
| TDP down: | None |
| Tjunction max: | -- |
Technical details
The AMD Athlon II X4 638 is manufactured using a 32 nm process. A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
| Technology: | 32 nm |
| Chip design: | -- |
| Socket: | FM1 |
| L2-Cache: | 4.0 MB |
| L3-Cache: | 0 bytes |
| Architecture: | Llano |
| Operating systems: | Windows 10, Linux |
| Virtualization: | AMD-V |
| Instruction set (ISA): | x86-64 (64 bit) |
| ISA extensions: | SSE3, SSE4a, MMX, 3DNow! |
| Release date: | Q1/2012 |
| Release price: | -- |
| Part Number: | AD638XOJGXBOX |
| Documents: | Technical data sheet |
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Benchmarks
Estimated results for PassMark CPU Mark
|
Intel Celeron J3455E
4C 4T @ 1.5 GHz
|
2255
|
|
AMD Phenom II X2 521
2C 2T @ 3.5 GHz
|
2253
|
|
|
AMD Athlon II X4 638
4C 4T @ 2.7 GHz
|
2248
|
|
Intel Core i3-3225
2C 4T @ 3.3 GHz
|
2246
|
|
|
AMD Phenom II X4 840T
4C 4T @ 2.9 GHz
|
2246
|
Geekbench 5, 64bit (Multi-Core)
|
|
Intel Core i3-7020U
2C 4T @ 2.3 GHz
|
1327
|
|
MediaTek Kompanio 500
8C 8T @ 2.0 GHz
|
1327
|
|
|
AMD Athlon II X4 638
4C 4T @ 2.7 GHz
|
1326
|
|
Qualcomm Snapdragon 662
8C 8T @ 2.0 GHz
|
1325
|
|
Intel Pentium Gold 5405U
2C 4T @ 2.3 GHz
|
1325
|
Geekbench 5, 64bit (Single-Core)
|
AMD A10-5757M
4C 4T @ 2.5 GHz
|
374
|
|
|
AMD Athlon II X3 440
3C 3T @ 3.0 GHz
|
374
|
|
|
AMD Athlon II X4 638
4C 4T @ 2.7 GHz
|
374
|
|
|
AMD Athlon II X3 440
3C 3T @ 3.0 GHz
|
374
|
|
|
AMD A10-5757M
4C 4T @ 2.5 GHz
|
374
|
