AMD EPYC 7251 | Intel Core i7-3820 | |
CPU comparisonAMD EPYC 7251 or Intel Core i7-3820 - 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 AMD EPYC 7251 has 8 cores with 16 threads and clocks with a maximum frequency of 2.90 GHz. Up to GB of memory is supported in 8 memory channels. The AMD EPYC 7251 was released in Q3/2017. The Intel Core i7-3820 has 4 cores with 8 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to 64 GB of memory in 4 memory channels. The Intel Core i7-3820 was released in Q1/2012. |
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AMD EPYC (129) | Family | Intel Core i7 Extreme Edition (24) |
AMD EPYC 7001 (12) | CPU group | Intel Core i 3000X (4) |
1 | Generation | 3 |
Naples (Zen) | Architecture | Sandy Bridge E |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD EPYC 7251 has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD EPYC 7251 is 2.10 GHz (2.90 GHz) while the Intel Core i7-3820 has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Intel Core i7-3820 is at 3.60 GHz (3.80 GHz). |
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AMD EPYC 7251 | Characteristic | Intel Core i7-3820 |
8 | Cores | 4 |
16 | Threads | 8 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.10 GHz | Frequency | 3.60 GHz |
2.90 GHz | Turbo Frequency (1 Core) | 3.80 GHz |
2.90 GHz | Turbo Frequency (All Cores) | -- |
Memory & PCIeThe AMD EPYC 7251 can use up to GB of memory in 8 memory channels. The maximum memory bandwidth is 153.6 GB/s. The Intel Core i7-3820 supports up to 64 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 51.2 GB/s. |
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AMD EPYC 7251 | Characteristic | Intel Core i7-3820 |
DDR4-2666 | Memory | DDR3-1066, DDR3-1333, DDR3-1600 |
Max. Memory | 64 GB | |
8 (Octa Channel) | Memory channels | 4 (Quad Channel) |
153.6 GB/s | Max. Bandwidth | 51.2 GB/s |
Yes | ECC | No |
-- | L2 Cache | -- |
32.00 MB | L3 Cache | 10.00 MB |
3.0 | PCIe version | 2.0 |
128 | PCIe lanes | 40 |
126.1 GB/s | PCIe Bandwidth | 20.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD EPYC 7251 is 120 W, while the Intel Core i7-3820 has a TDP of 130 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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AMD EPYC 7251 | Characteristic | Intel Core i7-3820 |
120 W | TDP (PL1 / PBP) | 130 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 105 °C |
Technical detailsThe AMD EPYC 7251 is manufactured in 14 nm and has 32.00 MB cache. The Intel Core i7-3820 is manufactured in 32 nm and has a 10.00 MB cache. |
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AMD EPYC 7251 | Characteristic | Intel Core i7-3820 |
14 nm | Technology | 32 nm |
Chiplet | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4.1, SSE4.2, AVX |
SP3 | Socket | LGA 2011 |
AMD-V, SVM | Virtualization | VT-x, VT-x EPT, VT-d (C2 Stepping) |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Linux |
Q3/2017 | Release date | Q1/2012 |
450 $ | Release price | 305 $ |
show more data | show more data | |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.80 GHz |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.60 GHz |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.60 GHz |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.80 GHz |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.60 GHz |
AMD EPYC 7251
8C 16T @ 2.10 GHz |
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Intel Core i7-3820
4C 8T @ 3.60 GHz |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.80 GHz |
AMD EPYC 7251
8C 16T @ 2.90 GHz |
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Intel Core i7-3820
4C 8T @ 3.60 GHz |
Devices using this processor |
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AMD EPYC 7251 | Intel Core i7-3820 |
Unknown | Unknown |