AMD A10-7870K vs Intel Core i9-7940X

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CPU comparison with benchmarks


AMD A10-7870K CPU1 vs CPU2 Intel Core i9-7940X
AMD A10-7870K Intel Core i9-7940X

CPU comparison

AMD A10-7870K or Intel Core i9-7940X - 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 A10-7870K has 4 cores with 4 threads and clocks with a maximum frequency of 4.10 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A10-7870K was released in Q2/2015.

The Intel Core i9-7940X has 14 cores with 28 threads and clocks with a maximum frequency of 4.30 GHz. The CPU supports up to 128 GB of memory in 4 memory channels. The Intel Core i9-7940X was released in Q4/2017.
AMD A (112) Family Intel Core i9 (78)
AMD A10-7000 (7) CPU group Intel Core i 7000X (9)
4 Generation 7
Kaveri (Steamroller) Architecture Skylake X
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor Intel Core i9-9940X

CPU Cores and Base Frequency

The AMD A10-7870K has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A10-7870K is 3.90 GHz (4.10 GHz) while the Intel Core i9-7940X has 14 CPU cores and 28 threads can calculate simultaneously. The clock frequency of the Intel Core i9-7940X is at 3.10 GHz (4.30 GHz).

AMD A10-7870K Characteristic Intel Core i9-7940X
4 Cores 14
4 Threads 28
normal Core architecture normal
No Hyperthreading Yes
Yes Overclocking ? Yes
3.90 GHz Frequency 3.10 GHz
4.10 GHz Turbo Frequency (1 Core) 4.30 GHz
4.10 GHz Turbo Frequency (All Cores) 3.70 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD A10-7870K Characteristic Intel Core i9-7940X
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A10-7870K or Intel Core i9-7940X 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.

AMD Radeon R7 - 512 (Kaveri) GPU no iGPU
0.86 GHz GPU frequency --
-- GPU (Turbo) --
6 GPU Generation --
28 nm Technology
2 Max. displays
8 Compute units --
512 Shader --
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory --
12 DirectX Version --

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.

AMD Radeon R7 - 512 (Kaveri) GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The AMD A10-7870K can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is --. The Intel Core i9-7940X supports up to 128 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 85.4 GB/s.

AMD A10-7870K Characteristic Intel Core i9-7940X
DDR3-2133 Memory DDR4-2666
Max. Memory 128 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
-- Max. Bandwidth 85.4 GB/s
Yes ECC No
-- L2 Cache --
4.00 MB L3 Cache 19.00 MB
3.0 PCIe version 3.0
16 PCIe lanes 44
15.8 GB/s PCIe Bandwidth 43.3 GB/s

Thermal Management

The thermal design power (TDP for short) of the AMD A10-7870K is 95 W, while the Intel Core i9-7940X has a TDP of 165 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD A10-7870K Characteristic Intel Core i9-7940X
95 W TDP (PL1 / PBP) 165 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A10-7870K is manufactured in 28 nm and has 4.00 MB cache. The Intel Core i9-7940X is manufactured in 14 nm and has a 19.00 MB cache.

AMD A10-7870K Characteristic Intel Core i9-7940X
28 nm Technology 14 nm
Unknown Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
FM2+ Socket LGA 2066
AMD-V Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems Windows 10, Linux
Q2/2015 Release date Q4/2017
135 $ Release price 1399 $
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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
526 (46%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 4.30 GHz
1133 (100%)

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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
1603 (12%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 3.70 GHz
12964 (100%)

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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
4682 (18%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 3.70 GHz
26338 (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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
66 (35%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 4.30 GHz
188 (100%)

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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
250 (9%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 3.70 GHz
2849 (100%)

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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
0 (0%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 4.30 GHz
1410 (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 A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
0 (0%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 3.70 GHz
10425 (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 A10-7870K AMD A10-7870K
AMD Radeon R7 - 512 (Kaveri) @ 0.86 GHz
887 (100%)
Intel Core i9-7940X Intel Core i9-7940X
@ 0.00 GHz
0 (0%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
AMD A10-7870K AMD A10-7870K
4C 4T @ 4.10 GHz
0 (0%)
Intel Core i9-7940X Intel Core i9-7940X
14C 28T @ 3.70 GHz
121.7 (100%)

Devices using this processor

AMD A10-7870K Intel Core i9-7940X
Unknown Unknown

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