EPYC 7251 vs Phenom II X4 P960
Aggregate performance score
EPYC 7251 outperforms Phenom II X4 P960 by a whopping 869% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2823 | 1051 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.94 |
| Market segment | Laptop | Server |
| Series | 4x AMD Phenom II | AMD EPYC |
| Power efficiency | 1.49 | 3.00 |
| Designer | AMD | AMD |
| Architecture codename | Champlain (2010−2011) | Naples (2017−2018) |
| Release date | 19 October 2010 (15 years ago) | 20 June 2017 (8 years ago) |
| Launch price (MSRP) | no data | $574 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Phenom II X4 P960 and EPYC 7251 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) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | no data | 2.1 GHz |
| Boost clock speed | 1.8 GHz | 2.1 GHz |
| Bus rate | 3600 MHz | no data |
| Multiplier | no data | 21 |
| L1 cache | 512 KB | 768 KB |
| L2 cache | 2 MB | 4 MB |
| L3 cache | no data | 32 MB (shared) |
| Chip lithography | 45 nm | 14 nm |
| Die size | no data | 213 mm2 |
| Number of transistors | no data | 19200 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Phenom II X4 P960 and EPYC 7251 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 | no data | 2 (Multiprocessor) |
| Socket | S1 (S1g4) | TR4 |
| Power consumption (TDP) | 25 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X4 P960 and EPYC 7251. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, 3DNow, SSE (1,2,3,4A), AMD64, Enhanced Virus Protection, Virtualization, HyperTransport 3.0 | no data |
| AES-NI | - | + |
| AVX | - | + |
| VirusProtect | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X4 P960 and EPYC 7251 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X4 P960 and EPYC 7251. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 Eight-channel |
| Maximum memory size | no data | 2 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 153.652 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Phenom II X4 P960 and EPYC 7251.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Performance score | 0.88 | 8.53 |
| Recency | 19 October 2010 | 20 June 2017 |
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 25 Watt | 120 Watt |
Phenom II X4 P960 has 380% lower power consumption.
EPYC 7251, on the other hand, has a 869% higher aggregate performance score, an age advantage of 6 years, 100% more physical cores and 300% more threads, and a 221% more advanced lithography process.
The AMD EPYC 7251 is our recommended choice as it beats the AMD Phenom II X4 P960 in performance tests.
Be aware that Phenom II X4 P960 is a notebook processor while EPYC 7251 is a server/workstation one.
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