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AMD EPYC 7643 vs Intel Core i7-1355U
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 6 Single-Core
Single-core performance
AMD EPYC 7643
68 %
48C / 96T · 3.60 GHz
Intel Core i7-1355U
100 %
10C / 12T · 5.00 GHz
Geekbench 6 Multi-Core
Multi-core performance
AMD EPYC 7643
100 %
48C / 96T · 3.40 GHz
Intel Core i7-1355U
48 %
10C / 12T · 1.70 GHz
Geekbench 5, 64bit Single-Core
Single-core performance
AMD EPYC 7643
77 %
48C / 96T · 3.60 GHz
Intel Core i7-1355U
100 %
10C / 12T · 5.00 GHz
Geekbench 5, 64bit Multi-Core
Multi-core performance
AMD EPYC 7643
100 %
48C / 96T · 3.40 GHz
Intel Core i7-1355U
20 %
10C / 12T · 1.70 GHz
More benchmarks
Cinebench 2026 (ST)
218 entries
218 entries
Cinebench 2026 (MC)
219 entries
219 entries
Cinebench 2024 (SC)
427 entries
427 entries
Cinebench 2024 (MC)
422 entries
422 entries
Cinebench R23 (SC)
690 entries
690 entries
Cinebench R23 (MC)
665 entries
665 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
3DMark Timespy (iGPU)
534 entries
534 entries
PassMark CPU-Mark
2,504 entries
2,504 entries
CPU performance per watt (efficiency)
140 entries
140 entries
Specifications
At a glance
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| Family | AMD EPYC (147) | Intel Core i7 (300) |
| CPU group | AMD EPYC 7003 (29) | Intel Core i 1300P/1300U (33) |
| Architecture | Milan (Zen 3) | Raptor Lake U |
| Technology | 7 nm | 10 nm |
| Segment | Server | Notebook |
| Socket | SP3 | BGA 1744 |
| Predecessor | AMD EPYC 7642 | Intel Core i7-1255U |
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| CPU Cores / Threads | 48 / 96 | 10 / 12 |
| Hyperthreading / SMT | ✓ | ✓ |
| Core architecture | normal | hybrid (big.LITTLE) |
| Core Cluster 1: | 48x Zen 3 2.30 - 3.60 GHz |
2x Raptor Cove 1.70 - 5.00 GHz |
| Core Cluster 2: | 8x Gracemont 1.20 - 3.70 GHz |
|
| L2-Cache | ||
| L3-Cache | 256.00 MB | 12.00 MB |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| GPU name | no iGPU | Intel Iris Xe Graphics 96 (Alder Lake) |
| GPU frequency | 0.35 - 1.30 GHz | |
| CUs / Shader | / | 96 / 768 |
| Raytracing | ✗ | ✗ |
| Max. displays | 4 | |
| Max. GPU Memory | 32 GB | |
| Technology | 10 nm | |
| Release date | Q1/2022 |
NPU AI performance
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| AI hardware | ||
| AI specifications | ||
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| Memory | DDR4-3200 (204.8 GB/s) | LPDDR5-6400 (102.4 GB/s) DDR5-5200 (83.2 GB/s) LPDDR4X-4266 (68.2 GB/s) DDR4-3200 (51.2 GB/s) |
| Max. Memory | 4096 GB | 96 GB |
| Memory channels | 8 | 2 |
| ECC | Yes | No |
| PCIe | 4.0 x 128 | 4.0 x 20 |
| PCIe Bandwidth | 252.0 GB/s | 39.4 GB/s |
Thermal Management
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| TDP | 240 W | 15 W |
| TDP (PL2) | 55 W | |
| TDP up | ||
| TDP down | 225 W | 12 W |
| T. junction max. | 100 °C |
Technical details
|
Wischen
|
AMD EPYC 7643 | Intel Core i7-1355U |
|---|---|---|
| Chip design | Chiplet | Monolithic |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Linux | Windows 10, Windows 11, Linux |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | SSE4.1, SSE4.2, AVX2 |
| Release date | Q1/2021 | Q1/2023 |
| Release price | 4995 $ | |
| Documents | Technical data sheet | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of AMD EPYC 7643 is 5.0 stars (1 ratings), while Intel Core i7-1355U has received 3.7 stars (177 ratings).
Click on the stars to rate one or both processors.
Most popular CPUs in both categories
1
AMD EPYC 7643
48C / 96T · 3.60 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
Intel Core i7-1355U
10C / 12T · 5.00 GHz
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