Intel Core i9-7920X | AMD EPYC 7251 | |
CPU comparisonIntel Core i9-7920X or AMD EPYC 7251 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i9-7920X has 12 cores with 24 threads and clocks with a maximum frequency of 4.30 GHz. Up to 128 GB of memory is supported in 4 memory channels. The Intel Core i9-7920X was released in Q3/2017. The AMD EPYC 7251 has 8 cores with 16 threads and clocks with a maximum frequency of 2.90 GHz. The CPU supports up to GB of memory in 8 memory channels. The AMD EPYC 7251 was released in Q3/2017. |
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Intel Core i9 (78) | Family | AMD EPYC (129) |
Intel Core i 7000X (9) | CPU group | AMD EPYC 7001 (12) |
7 | Generation | 1 |
Skylake X | Architecture | Naples (Zen) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
Intel Core i9-9920X | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i9-7920X has 12 CPU cores and can calculate 24 threads in parallel. The clock frequency of the Intel Core i9-7920X is 2.90 GHz (4.30 GHz) while the AMD EPYC 7251 has 8 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7251 is at 2.10 GHz (2.90 GHz). |
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Intel Core i9-7920X | Characteristic | AMD EPYC 7251 |
12 | Cores | 8 |
24 | Threads | 16 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
2.90 GHz | Frequency | 2.10 GHz |
4.30 GHz | Turbo Frequency (1 Core) | 2.90 GHz |
3.70 GHz | Turbo Frequency (All Cores) | 2.90 GHz |
Memory & PCIeThe Intel Core i9-7920X can use up to 128 GB of memory in 4 memory channels. The maximum memory bandwidth is 85.4 GB/s. The AMD EPYC 7251 supports up to GB of memory in 8 memory channels and achieves a memory bandwidth of up to 153.6 GB/s. |
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Intel Core i9-7920X | Characteristic | AMD EPYC 7251 |
DDR4-2666 | Memory | DDR4-2666 |
128 GB | Max. Memory | |
4 (Quad Channel) | Memory channels | 8 (Octa Channel) |
85.4 GB/s | Max. Bandwidth | 153.6 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
16.00 MB | L3 Cache | 32.00 MB |
3.0 | PCIe version | 3.0 |
44 | PCIe lanes | 128 |
43.3 GB/s | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i9-7920X is 165 W, while the AMD EPYC 7251 has a TDP of 120 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Core i9-7920X | Characteristic | AMD EPYC 7251 |
165 W | TDP (PL1 / PBP) | 120 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Intel Core i9-7920X is manufactured in 14 nm and has 16.00 MB cache. The AMD EPYC 7251 is manufactured in 14 nm and has a 32.00 MB cache. |
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Intel Core i9-7920X | Characteristic | AMD EPYC 7251 |
14 nm | Technology | 14 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX2, AVX-512 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
LGA 2066 | Socket | SP3 |
VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q3/2017 | Release date | Q3/2017 |
1189 $ | Release price | 450 $ |
show more data | show more data | |
Intel Core i9-7920X
12C 24T @ 4.30 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 3.70 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 3.70 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 4.30 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 3.70 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 4.30 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 3.70 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 3.70 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i9-7920X
12C 24T @ 2.90 GHz |
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AMD EPYC 7251
8C 16T @ 2.10 GHz |
Devices using this processor |
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Intel Core i9-7920X | AMD EPYC 7251 |
Unknown | Unknown |