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AMD EPYC 7251 vs Apple M5 Max (18-CPU 40-GPU)
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
More benchmarks
Cinebench 2024 (SC)
427 entries
427 entries
Cinebench 2024 (MC)
422 entries
422 entries
Geekbench 6 (SC)
1,989 entries
1,989 entries
Geekbench 6 (MC)
1,927 entries
1,927 entries
Geekbench 5 (SC)
2,512 entries
2,512 entries
Geekbench 5 (MC)
2,483 entries
2,483 entries
FP32 SP (iGPU)
2,219 entries
2,219 entries
PassMark CPU-Mark
2,504 entries
2,504 entries
Cinebench R15 (SC)
1,113 entries
1,113 entries
Cinebench R15 (MC)
1,110 entries
1,110 entries
Geekbench 3 (SC)
945 entries
945 entries
Geekbench 3 (MC)
941 entries
941 entries
Cinebench R11.5 (SC)
826 entries
826 entries
Cinebench R11.5 (MC)
837 entries
837 entries
Specifications
At a glance
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| Family | AMD EPYC (147) | Apple M series (38) |
| CPU group | AMD EPYC 7001 (12) | Apple M5 (6) |
| Architecture | Naples (Zen) | M5 |
| Technology | 14 nm | 3 nm |
| Segment | Server | Notebook |
| Socket | SP3 | |
| Predecessor | Apple M4 Max (16-CPU 40-GPU) | |
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| CPU Cores / Threads | 8 / 16 | 18 / 18 |
| Hyperthreading / SMT | ✓ | ✗ |
| Core architecture | normal | hybrid (big.LITTLE) |
| Core Cluster 1: | 8x 2.10 - 2.90 GHz |
6x Super-Core 0.91 - 4.61 GHz |
| Core Cluster 2: | 12x Performance-Core 0.90 - 3.05 GHz |
|
| L2-Cache | 22.00 MB | |
| L3-Cache | 32.00 MB | |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| GPU name | no iGPU | Apple M5 Max (40 Core) |
| GPU frequency | 0.34 - 1.90 GHz | |
| CUs / Shader | / | 640 / 5120 |
| Raytracing | ✗ | ✓ |
| Max. displays | 3 | |
| Max. GPU Memory | 128 GB | |
| Technology | 3 nm | |
| Release date | Q1/2026 |
NPU AI performance
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| AI hardware | Apple Neural Engine | |
| AI specifications | 16 Neural cores @ 60 TOPS | |
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| Memory | DDR4-2666 (153.6 GB/s) | LPDDR5X-9600 (614.4 GB/s) |
| Max. Memory | 128 GB | |
| Memory channels | 8 | 8 |
| ECC | Yes | No |
| PCIe | 3.0 x 128 | 5.0 x 8 |
| PCIe Bandwidth | 126.1 GB/s | 31.5 GB/s |
Thermal Management
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| TDP | 120 W | 60 W |
| TDP (PL2) | ||
| TDP up | ||
| TDP down | ||
| T. junction max. | 100 °C |
Technical details
|
Wischen
|
AMD EPYC 7251 | Apple M5 Max (18-CPU 40-GPU) |
|---|---|---|
| Chip design | Chiplet | Monolithic |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Linux | macOS, iPadOS |
| Instruction set | x86-64 (64 bit) | Armv9.2-A (64 bit) |
| ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | Rosetta 2 x86-Emulation, AVX2, SME |
| Release date | Q3/2017 | Q1/2026 |
| Release price | 450 $ | |
| Documents | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of AMD EPYC 7251 is 5.0 stars (1 ratings), while Apple M5 Max (18-CPU 40-GPU) has received 4.9 stars (133 ratings).
Click on the stars to rate one or both processors.
Most popular CPUs in both categories
1
AMD EPYC 7251
8C / 16T · 2.90 GHz
2
Apple M5 Max (18-CPU 32-GPU)
18C / 18T · 4.61 GHz
3
Apple M2 Ultra (76-GPU)
24C / 24T · 3.50 GHz
4
Apple M5 Max (18-CPU 40-GPU)
18C / 18T · 4.61 GHz
5
Apple M5 Pro (15-CPU 16-GPU)
15C / 15T · 4.61 GHz
6
Apple M1 Ultra (48-GPU)
20C / 20T · 3.20 GHz
7
Apple M2 Ultra (60-GPU)
24C / 24T · 3.50 GHz
8
Apple M1 Pro (8-CPU)
8C / 8T · 3.20 GHz
9
Apple M3 Max (16-CPU 40-GPU)
16C / 16T · 4.06 GHz
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