Xeon Gold 6423N vs EPYC 7663
Aggregate performance score
EPYC 7663 outperforms Xeon Gold 6423N by a considerable 43% based on our aggregate benchmark results.
Primary details
Comparing EPYC 7663 and Xeon Gold 6423N processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 31 | 98 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 4.89 | no data |
| Market segment | Server | Server |
| Series | AMD EPYC | no data |
| Power efficiency | 20.38 | 17.55 |
| Architecture codename | Milan (2021−2023) | no data |
| Release date | 15 March 2021 (3 years ago) | 1 July 2023 (1 year ago) |
| Launch price (MSRP) | $6,366 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 7663 and Xeon Gold 6423N 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) | 28 (Octacosa-Core) |
| Threads | 112 | 56 |
| Base clock speed | 2 GHz | 2 GHz |
| Boost clock speed | 3.5 GHz | 3.6 GHz |
| Multiplier | 20 | no data |
| L1 cache | 64 KB (per core) | no data |
| L2 cache | 512 KB (per core) | no data |
| L3 cache | 256 MB (shared) | 52.5 MB |
| Chip lithography | 7 nm+ | Intel 7 nm |
| Die size | 8x 81 mm2 | no data |
| Maximum core temperature | no data | 85 °C |
| Number of transistors | 33,200 million | no data |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
Compatibility
Information on EPYC 7663 and Xeon Gold 6423N 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 | 2 | no data |
| Socket | SP3 | FCLGA4677 |
| Power consumption (TDP) | 240 Watt | 195 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7663 and Xeon Gold 6423N. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
EPYC 7663 and Xeon Gold 6423N technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7663 and Xeon Gold 6423N 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 EPYC 7663 and Xeon Gold 6423N. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5-4400 |
| Maximum memory size | 4 TiB | 4 TB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | 204.795 GB/s | no data |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | no data |
Peripherals
Specifications and connection of peripherals supported by EPYC 7663 and Xeon Gold 6423N.
| PCIe version | 4.0 | 4 |
| PCI Express lanes | 128 | 64 |
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 | 51.68 | 36.16 |
| Recency | 15 March 2021 | 1 July 2023 |
| Physical cores | 56 | 28 |
| Threads | 112 | 56 |
| Power consumption (TDP) | 240 Watt | 195 Watt |
EPYC 7663 has a 42.9% higher aggregate performance score, and 100% more physical cores and 100% more threads.
Xeon Gold 6423N, on the other hand, has an age advantage of 2 years, and 23.1% lower power consumption.
The EPYC 7663 is our recommended choice as it beats the Xeon Gold 6423N in performance tests.
Should you still have questions on choice between EPYC 7663 and Xeon Gold 6423N, 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.
