Xeon D-1813NT vs EPYC 7643P
Aggregate performance score
EPYC 7643P outperforms Xeon D-1813NT by a whopping 789% based on our aggregate benchmark results.
Primary details
Comparing EPYC 7643P and Xeon D-1813NT processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 48 | 1231 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 12.92 | no data |
| Market segment | Server | Server |
| Power efficiency | 18.18 | 10.96 |
| Architecture codename | Milan (2021−2023) | no data |
| Release date | 5 September 2023 (1 year ago) | 1 October 2023 (1 year ago) |
| Launch price (MSRP) | $2,722 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 7643P and Xeon D-1813NT 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 | 48 (Octatetraconta-Core) | 4 (Quad-Core) |
| Threads | 96 | 8 |
| Base clock speed | 2.3 GHz | 2.2 GHz |
| Boost clock speed | 3.6 GHz | 2.4 GHz |
| L1 cache | 64 KB (per core) | no data |
| L2 cache | 512 KB (per core) | no data |
| L3 cache | 256 MB (shared) | 10240 KB |
| Chip lithography | 7 nm | no data |
| Die size | 8x 81 mm2 | no data |
| Number of transistors | 33,200 million | no data |
| 64 bit support | - | + |
Compatibility
Information on EPYC 7643P and Xeon D-1813NT 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 | no data |
| Socket | SP3 | FCBGA2227 |
| Power consumption (TDP) | 225 Watt | 42 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7643P and Xeon D-1813NT. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Thermal Monitoring | - | + |
| Precision Boost 2 | + | no data |
| Deep Learning Boost | - | + |
Security technologies
EPYC 7643P and Xeon D-1813NT technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7643P and Xeon D-1813NT are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7643P and Xeon D-1813NT. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 |
| Maximum memory size | no data | 256 GB |
| Max memory channels | no data | 2 |
| 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 7643P and Xeon D-1813NT.
| PCIe version | 4.0 | 4.0 |
| PCI Express lanes | 128 | 16 |
| USB revision | no data | 3.0 |
| Max number of SATA 6 Gb/s Ports | no data | 24 |
| Number of USB ports | no data | 4 |
| Integrated LAN | no data | + |
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 | 44.87 | 5.05 |
| Physical cores | 48 | 4 |
| Threads | 96 | 8 |
| Power consumption (TDP) | 225 Watt | 42 Watt |
EPYC 7643P has a 788.5% higher aggregate performance score, and 1100% more physical cores and 1100% more threads.
Xeon D-1813NT, on the other hand, has 435.7% lower power consumption.
The EPYC 7643P is our recommended choice as it beats the Xeon D-1813NT in performance tests.
Should you still have questions on choice between EPYC 7643P and Xeon D-1813NT, 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.
