Xeon 6979P vs Athlon II X4 638
Primary details
Comparing Athlon II X4 638 and Xeon 6979P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2191 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 2.06 | no data |
| Architecture codename | Llano (2011−2012) | Granite Rapids (2024) |
| Release date | 6 February 2012 (12 years ago) | 24 September 2024 (less than a year ago) |
Detailed specifications
Athlon II X4 638 and Xeon 6979P basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 120 |
| Threads | 4 | 240 |
| Base clock speed | 2.7 GHz | 2.1 GHz |
| Boost clock speed | 2.7 GHz | 3.9 GHz |
| L1 cache | 128 KB (per core) | 112 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per core) |
| L3 cache | 0 KB | 504 MB (shared) |
| Chip lithography | 32 nm | 5 nm |
| Die size | 228 mm2 | no data |
| Maximum case temperature (TCase) | no data | 80 °C |
| Number of transistors | 1,178 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Athlon II X4 638 and Xeon 6979P compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 2 |
| Socket | FM1 | 7529 |
| Power consumption (TDP) | 65 Watt | 500 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 638 and Xeon 6979P. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
Athlon II X4 638 and Xeon 6979P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 638 and Xeon 6979P are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 638 and Xeon 6979P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Athlon II X4 638 and Xeon 6979P.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 96 |
Pros & cons summary
| Recency | 6 February 2012 | 24 September 2024 |
| Physical cores | 4 | 120 |
| Threads | 4 | 240 |
| Chip lithography | 32 nm | 5 nm |
| Power consumption (TDP) | 65 Watt | 500 Watt |
Athlon II X4 638 has 669.2% lower power consumption.
Xeon 6979P, on the other hand, has an age advantage of 12 years, 2900% more physical cores and 5900% more threads, and a 540% more advanced lithography process.
We couldn't decide between Athlon II X4 638 and Xeon 6979P. We've got no test results to judge.
Note that Athlon II X4 638 is a desktop processor while Xeon 6979P is a server/workstation one.
Should you still have questions on choice between Athlon II X4 638 and Xeon 6979P, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
