EPYC 7643P vs Xeon w9-3495X
Aggregate performance score
Xeon w9-3495X outperforms EPYC 7643P by a substantial 34% based on our aggregate benchmark results.
Primary details
Comparing Xeon w9-3495X and EPYC 7643P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 21 | 50 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 18.82 | 13.01 |
| Market segment | Server | Server |
| Power efficiency | 15.65 | 18.18 |
| Architecture codename | Sapphire Rapids (2023−2024) | Milan (2021−2023) |
| Release date | 15 February 2023 (1 year ago) | 5 September 2023 (1 year ago) |
| Launch price (MSRP) | $5,889 | $2,722 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon w9-3495X has 45% better value for money than EPYC 7643P.
Detailed specifications
Xeon w9-3495X and EPYC 7643P 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 | 56 (Hexapentaconta-Core) | 48 (Octatetraconta-Core) |
| Threads | 112 | 96 |
| Base clock speed | 1.9 GHz | 2.3 GHz |
| Boost clock speed | 4.8 GHz | 3.6 GHz |
| L1 cache | 80 KB (per core) | 64 KB (per core) |
| L2 cache | 2 MB (per core) | 512 KB (per core) |
| L3 cache | 105 MB | 256 MB (shared) |
| Chip lithography | Intel 7 nm | 7 nm |
| Die size | 4x 477 mm2 | 8x 81 mm2 |
| Maximum case temperature (TCase) | 81 °C | no data |
| Number of transistors | no data | 33,200 million |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Xeon w9-3495X and EPYC 7643P 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 | 1 | 1 |
| Socket | FCLGA4677 | SP3 |
| Power consumption (TDP) | 350 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon w9-3495X and EPYC 7643P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, 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 |
| Precision Boost 2 | no data | + |
| Deep Learning Boost | + | - |
Security technologies
Xeon w9-3495X and EPYC 7643P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon w9-3495X and EPYC 7643P 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 w9-3495X and EPYC 7643P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800 | DDR4 |
| Maximum memory size | 4 TB | no data |
| Max memory channels | 8 | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon w9-3495X and EPYC 7643P.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 112 | 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 | 57.88 | 43.23 |
| Recency | 15 February 2023 | 5 September 2023 |
| Physical cores | 56 | 48 |
| Threads | 112 | 96 |
| Power consumption (TDP) | 350 Watt | 225 Watt |
Xeon w9-3495X has a 33.9% higher aggregate performance score, and 16.7% more physical cores and 16.7% more threads.
EPYC 7643P, on the other hand, has an age advantage of 6 months, and 55.6% lower power consumption.
The Xeon w9-3495X is our recommended choice as it beats the EPYC 7643P in performance tests.
Should you still have questions on choice between Xeon w9-3495X and EPYC 7643P, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
