Intel Core i7-4820K | AMD EPYC 7251 | |
CPU comparisonIntel Core i7-4820K 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 i7-4820K has 4 cores with 8 threads and clocks with a maximum frequency of 3.90 GHz. Up to 64 GB of memory is supported in 4 memory channels. The Intel Core i7-4820K was released in Q3/2013. 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 i7 Extreme Edition (24) | Family | AMD EPYC (129) |
Intel Core i 4000X (3) | CPU group | AMD EPYC 7001 (12) |
4 | Generation | 1 |
Ivy Bridge E | Architecture | Naples (Zen) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
Intel Core i7-5820K | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-4820K is a 4 core processor with a clock frequency of 3.70 GHz (3.90 GHz). The AMD EPYC 7251 has 8 CPU cores with a clock frequency of 2.10 GHz (2.90 GHz). |
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Intel Core i7-4820K | Characteristic | AMD EPYC 7251 |
4 | Cores | 8 |
8 | Threads | 16 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | No |
3.70 GHz | Frequency | 2.10 GHz |
3.90 GHz | Turbo Frequency (1 Core) | 2.90 GHz |
3.80 GHz | Turbo Frequency (All Cores) | 2.90 GHz |
Memory & PCIeThe Intel Core i7-4820K supports a maximum of 64 GB of memory in 4 memory channels. The AMD EPYC 7251 can connect up to GB of memory in 8 memory channels. |
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Intel Core i7-4820K | Characteristic | AMD EPYC 7251 |
DDR3-1866 | Memory | DDR4-2666 |
64 GB | Max. Memory | |
4 (Quad Channel) | Memory channels | 8 (Octa Channel) |
59.7 GB/s | Max. Bandwidth | 153.6 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
10.00 MB | L3 Cache | 32.00 MB |
3.0 | PCIe version | 3.0 |
40 | PCIe lanes | 128 |
39.4 GB/s | PCIe Bandwidth | 126.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i7-4820K has a TDP of 130 W, that of the AMD EPYC 7251 is 120 W. |
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Intel Core i7-4820K | Characteristic | AMD EPYC 7251 |
130 W | TDP (PL1 / PBP) | 120 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Intel Core i7-4820K has a 10.00 MB cache, while the AMD EPYC 7251 cache has a total of 32.00 MB. |
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Intel Core i7-4820K | Characteristic | AMD EPYC 7251 |
22 nm | Technology | 14 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
LGA 2011 | 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 |
Q3/2013 | Release date | Q3/2017 |
280 $ | Release price | 450 $ |
show more data | show more data | |
Intel Core i7-4820K
4C 8T @ 3.90 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.80 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.80 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.90 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.80 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.90 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.80 GHz |
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AMD EPYC 7251
8C 16T @ 2.90 GHz |
Intel Core i7-4820K
4C 8T @ 3.70 GHz |
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AMD EPYC 7251
8C 16T @ 2.10 GHz |
Devices using this processor |
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Intel Core i7-4820K | AMD EPYC 7251 |
Unknown | Unknown |