AMD EPYC 7251 vs Intel Core i7-3517U

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CPU comparison with benchmarks


AMD EPYC 7251 CPU1 vs CPU2 Intel Core i7-3517U
AMD EPYC 7251 Intel Core i7-3517U

CPU comparison

AMD EPYC 7251 or Intel Core i7-3517U - 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 i7-3517U has 2 cores with 4 threads and clocks with a maximum frequency of 3.00 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-3517U was released in Q2/2012.
AMD EPYC (129) Family Intel Core i7 (298)
AMD EPYC 7001 (12) CPU group Intel Core i 3000U (12)
1 Generation 3
Naples (Zen) Architecture Ivy Bridge U
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The 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 i7-3517U has 2 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Core i7-3517U is at 1.90 GHz (3.00 GHz).

AMD EPYC 7251 Characteristic Intel Core i7-3517U
8 Cores 2
16 Threads 4
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
2.10 GHz Frequency 1.90 GHz
2.90 GHz Turbo Frequency (1 Core) 3.00 GHz
2.90 GHz Turbo Frequency (All Cores) 2.50 GHz

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD EPYC 7251 Characteristic Intel Core i7-3517U
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The AMD EPYC 7251 or Intel Core i7-3517U has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU Intel HD Graphics 4000
GPU frequency 0.35 GHz
-- GPU (Turbo) 1.15 GHz
-- GPU Generation 7
Technology 22 nm
Max. displays 3
-- Compute units 16
-- Shader 128
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- DirectX Version 11.0

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU Intel HD Graphics 4000
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

The 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 i7-3517U supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 25.6 GB/s.

AMD EPYC 7251 Characteristic Intel Core i7-3517U
DDR4-2666 Memory DDR3-1600
Max. Memory 32 GB
8 (Octa Channel) Memory channels 2 (Dual Channel)
153.6 GB/s Max. Bandwidth 25.6 GB/s
Yes ECC No
-- L2 Cache --
32.00 MB L3 Cache 4.00 MB
3.0 PCIe version --
128 PCIe lanes --
126.1 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD EPYC 7251 is 120 W, while the Intel Core i7-3517U has a TDP of 17 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD EPYC 7251 Characteristic Intel Core i7-3517U
120 W TDP (PL1 / PBP) 17 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD EPYC 7251 is manufactured in 14 nm and has 32.00 MB cache. The Intel Core i7-3517U is manufactured in 22 nm and has a 4.00 MB cache.

AMD EPYC 7251 Characteristic Intel Core i7-3517U
14 nm Technology 22 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 BGA 1023
AMD-V, SVM Virtualization VT-x, VT-x EPT
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2017 Release date Q2/2012
450 $ Release price 260 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD EPYC 7251 (100%)
Intel Core i7-3517U (76%)
⌀ Multi core performance in 2 CPU benchmarks
AMD EPYC 7251 (100%)
Intel Core i7-3517U (20%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
783 (100%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 3.00 GHz
592 (76%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
4634 (100%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 2.50 GHz
1171 (25%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
14936 (100%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 2.50 GHz
2031 (14%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
0 (0%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 3.00 GHz
521 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
0 (0%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 2.50 GHz
1031 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
0 (0%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 3.00 GHz
223 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
0 (0%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 2.50 GHz
467 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD EPYC 7251 AMD EPYC 7251
@ 0.00 GHz
0 (0%)
Intel Core i7-3517U Intel Core i7-3517U
Intel HD Graphics 4000 @ 1.15 GHz
294 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
128 (100%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 3.00 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD EPYC 7251 AMD EPYC 7251
8C 16T @ 2.90 GHz
1093 (100%)
Intel Core i7-3517U Intel Core i7-3517U
2C 4T @ 2.50 GHz
0 (0%)

Devices using this processor

AMD EPYC 7251 Intel Core i7-3517U
Unknown Unknown

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