EPYC Embedded 8434P vs i9-7940X
Primary details
Comparing Core i9-7940X and EPYC Embedded 8434P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 408 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.30 | no data |
| Market segment | Desktop processor | Server |
| Series | Intel Core i9 | no data |
| Power efficiency | 9.37 | no data |
| Architecture codename | Skylake (server) (2017−2018) | Siena (2023−2024) |
| Release date | 1 September 2017 (7 years ago) | 1 October 2024 (less than a year ago) |
| Launch price (MSRP) | $1,399 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-7940X and EPYC Embedded 8434P 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 | 14 (Tetradeca-Core) | 48 (Octatetraconta-Core) |
| Threads | 28 | 96 |
| Base clock speed | 3.1 GHz | 2.5 GHz |
| Boost clock speed | 4.4 GHz | 3.1 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 19.25 MB (shared) | 128 MB (shared) |
| Chip lithography | 14 nm | 5 nm |
| Die size | 484 mm2 | 4x 73 mm2 |
| Maximum core temperature | 102 °C | no data |
| Maximum case temperature (TCase) | no data | 75 °C |
| Number of transistors | no data | 35,500 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-7940X and EPYC Embedded 8434P 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 (Uniprocessor) | 1 |
| Socket | FCLGA2066 | SP6 |
| Power consumption (TDP) | 165 Watt | 200 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-7940X and EPYC Embedded 8434P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | 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 | + |
Security technologies
Core i9-7940X and EPYC Embedded 8434P technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-7940X and EPYC Embedded 8434P 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 Core i9-7940X and EPYC Embedded 8434P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2666 | DDR5 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Core i9-7940X and EPYC Embedded 8434P.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 44 | 96 |
Pros & cons summary
| Recency | 1 September 2017 | 1 October 2024 |
| Physical cores | 14 | 48 |
| Threads | 28 | 96 |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 165 Watt | 200 Watt |
i9-7940X has 21.2% lower power consumption.
EPYC Embedded 8434P, on the other hand, has an age advantage of 7 years, 242.9% more physical cores and 242.9% more threads, and a 180% more advanced lithography process.
We couldn't decide between Core i9-7940X and EPYC Embedded 8434P. We've got no test results to judge.
Note that Core i9-7940X is a desktop processor while EPYC Embedded 8434P is a server/workstation one.
Should you still have questions on choice between Core i9-7940X and EPYC Embedded 8434P, ask them in Comments section, and we shall answer.
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