EPYC 7643 vs Xeon Platinum 8176
Aggregate performance score
EPYC 7643 outperforms Xeon Platinum 8176 by a whopping 228% based on our aggregate benchmark results.
Primary details
Comparing Xeon Platinum 8176 and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 486 | 39 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.26 | 6.37 |
| Market segment | Server | Server |
| Series | Intel Xeon Platinum | AMD EPYC |
| Power efficiency | 8.37 | 20.14 |
| Architecture codename | Skylake (server) (2017−2018) | Milan (2021−2023) |
| Release date | 25 April 2017 (7 years ago) | 15 March 2021 (3 years ago) |
| Launch price (MSRP) | $8,719 | $4,995 |
Cost-effectiveness evaluation
Performance per price, higher is better.
EPYC 7643 has 406% better value for money than Xeon Platinum 8176.
Detailed specifications
Xeon Platinum 8176 and EPYC 7643 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 | 28 (Octacosa-Core) | 48 (Octatetraconta-Core) |
| Threads | 56 | 96 |
| Base clock speed | 2.1 GHz | 2.3 GHz |
| Boost clock speed | 3.8 GHz | 3.6 GHz |
| Multiplier | 21 | 23 |
| L1 cache | 1.75 MB | 64 KB (per core) |
| L2 cache | 28 MB | 512 KB (per core) |
| L3 cache | 38.5 MB | 256 MB (shared) |
| Chip lithography | 14 nm | 7 nm+ |
| Die size | no data | 8x 81 mm2 |
| Maximum core temperature | 89 °C | no data |
| Number of transistors | no data | 33,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Xeon Platinum 8176 and EPYC 7643 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 | 8 (Multiprocessor) | 2 |
| Socket | FCLGA3647 | SP3 |
| Power consumption (TDP) | 165 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Platinum 8176 and EPYC 7643. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Turbo Boost Max 3.0 | - | no data |
Security technologies
Xeon Platinum 8176 and EPYC 7643 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Platinum 8176 and EPYC 7643 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Platinum 8176 and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR4-3200 |
| Maximum memory size | 768 GB | 4 TiB |
| Max memory channels | 6 | no data |
| Maximum memory bandwidth | 128.001 GB/s | 204.795 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon Platinum 8176 and EPYC 7643.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 48 | 128 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 14.59 | 47.88 |
| Recency | 25 April 2017 | 15 March 2021 |
| Physical cores | 28 | 48 |
| Threads | 56 | 96 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 165 Watt | 225 Watt |
Xeon Platinum 8176 has 36.4% lower power consumption.
EPYC 7643, on the other hand, has a 228.2% higher aggregate performance score, an age advantage of 3 years, 71.4% more physical cores and 71.4% more threads, and a 100% more advanced lithography process.
The EPYC 7643 is our recommended choice as it beats the Xeon Platinum 8176 in performance tests.
Should you still have questions on choice between Xeon Platinum 8176 and EPYC 7643, ask them in Comments section, and we shall answer.
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