Core i7-11700KF vs EPYC 7643
Aggregate performance score
EPYC 7643 outperforms i7-11700KF by a whopping 217% based on our aggregate benchmark results.
Primary details
Comparing EPYC 7643 and Core i7-11700KF processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 31 | 418 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 39.01 | 48.16 |
| Market segment | Server | Desktop processor |
| Series | AMD EPYC | no data |
| Architecture codename | Milan (2021) | Rocket Lake (2021) |
| Release date | 15 March 2021 (3 years ago) | 16 March 2021 (3 years ago) |
| Launch price (MSRP) | $4,995 | no data |
| Current price | $1330 (0.3x MSRP) | $241 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i7-11700KF has 23% better value for money than EPYC 7643.
Detailed specifications
EPYC 7643 and Core i7-11700KF 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) | 8 (Octa-Core) |
| Threads | 96 | 16 |
| Base clock speed | 2.3 GHz | 3.6 GHz |
| Boost clock speed | 3.6 GHz | 5 GHz |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 256K (per core) |
| L3 cache | 256 MB (shared) | 16 MB (shared) |
| Chip lithography | 7 nm+ | 14 nm |
| Die size | 8x 81 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 33,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | Yes | Yes |
Compatibility
Information on EPYC 7643 and Core i7-11700KF 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 | 1 |
| Socket | SP3 | FCLGA1200 |
| Power consumption (TDP) | 225 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7643 and Core i7-11700KF. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | no data | + |
| Idle States | no data | + |
| Thermal Monitoring | no data | + |
| SIPP | no data | - |
| Turbo Boost Max 3.0 | no data | + |
| Status | no data | Discontinued |
Security technologies
EPYC 7643 and Core i7-11700KF technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| Identity Protection | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7643 and Core i7-11700KF are enumerated here.
| AMD-V | + | no data |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7643 and Core i7-11700KF. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR4-3200 |
| Maximum memory size | 4 TiB | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | 204.795 GB/s | 50 GB/s |
| ECC memory support | no data | - |
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 7643 and Core i7-11700KF.
| PCIe version | 4.0 | 4.0 |
| PCI Express lanes | 128 | 20 |
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.
EPYC 7643 outperforms Core i7-11700KF by 217% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
EPYC 7643 outperforms Core i7-11700KF by 217% in Passmark.
Pros & cons summary
| Performance score | 49.17 | 15.51 |
| Physical cores | 48 | 8 |
| Threads | 96 | 16 |
| Chip lithography | 7 nm | 14 nm |
| Power consumption (TDP) | 225 Watt | 125 Watt |
The EPYC 7643 is our recommended choice as it beats the Core i7-11700KF in performance tests.
Be aware that EPYC 7643 is a server/workstation processor while Core i7-11700KF is a desktop one.
Should you still have questions on choice between EPYC 7643 and Core i7-11700KF, ask them in Comments section, and we shall answer.
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