AMD Epyc 7451 vs AMD Phenom II X4 975
VS
AMD Epyc 7451
AMD Phenom II X4 975
AMD Epyc 7451
AMD Phenom II X4 975
Key Differences | AMD Epyc 7451 | AMD Phenom II X4 975 |
---|---|---|
Cores | 24 | 4 |
CPU Threads | 48 | 4 |
Base Clock Speed | 2.3GHz | 3.6GHz |
Turbo Clock Speed | 3.2GHz | Not Known |
TDP (THERMAL DESIGN POINT) | 180W | 125W |
Has integrated graphics | No | No |
Performance per watt | Not Known | 54.0 |
Performance | AMD Epyc 7451 | AMD Phenom II X4 975 |
---|---|---|
CPU Speed & Cores | 24 x 2.3GHz | 4 x 3.6GHz |
Number of CPU Threads | 48 | 4 |
L2 Cache Size | 12MB | 2MB |
L3 Cache Size | 64MB | 6MB |
Turbo Boost Frequency | 3.2GHz | Not Known |
L1 Cache Size | 2304KB | 512KB |
L2 Core | 0.5MB/core | 0.5MB/core |
L3 Core | 2.67MB/core | 1.5MB/core |
Does it have an unlocked multiplier | No | Yes |
Uses ARM big.LITTLE tech | No | No |
Uses ARM HMP | No | No |
Clock Multiplier | Not Known | 18 |
Features | AMD Epyc 7451 | AMD Phenom II X4 975 |
---|---|---|
Has AES Support | Yes | No |
Supported SSE Version | 4.2 | 4 |
Has AVX Support | Yes | No |
Has MMX Tech Support | Yes | Yes |
Has F16C Support | Yes | No |
Has NX Processor Bit Support | Yes | Yes |
Has FMA3 Instructions Support | Yes | No |
Supports CPU Throttling | No | Yes |
Supports ARM TrustZone Tech | No | No |
Has FMA4 Instructions Support | No | No |
Has Multithreading Tech Support | No | No |
General info | AMD Epyc 7451 | AMD Phenom II X4 975 |
---|---|---|
Has 64-bit Support | No Data Found | No Data Found |
Semiconductor Size | 14nm | 45nm |
TDP (Thermal Design Point) | 180W | 125W |
PCI Express Version | 3 | 2 |
Transistor Count | 19200 million | 758 million |
Does it have Integrated Graphics | No | No |
Supports Power Optimized L2 Cache | No | No |
Memory | AMD Epyc 7451 | AMD Phenom II X4 975 |
---|---|---|
RAM Memory Speed | 2666MHz | 1333MHz |
Max Memory Bandwidth | 341GB/s | 21.3GB/s |
Max Memory Channels | 8 | 2 |
Supported Memory Size | 2000GB | Not Known |
ECC (Error-Correcting Code) Memory Support | Yes | No |
Benchmarks | AMD Epyc 7451 | AMD Phenom II X4 975 |
---|---|---|
PassMark Score | 28957 | 4697 |
PassMark Score (Single Thread) | 1601 | 1285 |
PassMark Score (Overclocked) | Not Known | 5208 |
CPU Performance (Per Watt) | Not Known | 54.0 |
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