Intel Core i9-7900X vs AMD Ryzen 5 8640U

Last updated: 2023-12-08

CPU comparison with benchmarks


Intel Core i9-7900X		AMD Ryzen 5 8640U
CPU comparison Intel Core i9-7900X or AMD Ryzen 5 8640U - 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 i9-7900X has 10 cores with 20 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 i9-7900X was released in Q2/2017. The AMD Ryzen 5 8640U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 5 8640U was released in Q1/2024.

Intel Core i9 (78)	Family	AMD Ryzen 5 (85)
Intel Core i 7000X (9)	CPU group	AMD Ryzen 8040 (20)
7	Generation	7
Skylake X	Architecture	Hawk Point (Zen 4)
Desktop / Server	Segment	Mobile
--	Predecessor	AMD Ryzen 5 7640U
Intel Core i9-9900X	Successor	--

CPU Cores and Base Frequency The Intel Core i9-7900X is a 10 core processor with a clock frequency of 3.30 GHz (4.30 GHz). The AMD Ryzen 5 8640U has 6 CPU cores with a clock frequency of 3.50 GHz (4.90 GHz).
Intel Core i9-7900X	Characteristic	AMD Ryzen 5 8640U
10	Cores	6
20	Threads	12
normal	Core architecture	normal
Yes	Hyperthreading	Yes
Yes	Overclocking ?	No
3.30 GHz	Frequency	3.50 GHz
4.30 GHz	Turbo Frequency (1 Core)	4.90 GHz
4.00 GHz	Turbo Frequency (All Cores)	--

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.
Intel Core i9-7900X	Characteristic	AMD Ryzen 5 8640U
--	AI hardware	--
--	AI specifications	--

Internal Graphics The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
no iGPU	GPU	AMD Radeon 760M
	GPU frequency	0.80 GHz
--	GPU (Turbo)	2.60 GHz
--	GPU Generation	10
	Technology	4 nm
	Max. displays	4
--	Compute units	8
--	Shader	512
No	Hardware Raytracing	Yes
No	Frame Generation	AMD FSR
--	Max. GPU Memory	32 GB
--	DirectX Version	12

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	AMD Radeon 760M
No	Codec h265 / HEVC (8 bit)	Decode / Encode
No	Codec h265 / HEVC (10 bit)	Decode / Encode
No	Codec h264	Decode / Encode
No	Codec VP9	Decode
No	Codec VP8	Decode
No	Codec AV1	Decode / Encode
No	Codec AVC	Decode
No	Codec VC-1	Decode
No	Codec JPEG	Decode / Encode

Memory & PCIe The Intel Core i9-7900X supports a maximum of 128 GB of memory in 4 memory channels. The AMD Ryzen 5 8640U can connect up to 256 GB of memory in 2 memory channels.
Intel Core i9-7900X	Characteristic	AMD Ryzen 5 8640U
DDR4-2666	Memory	DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
128 GB	Max. Memory	256 GB
4 (Quad Channel)	Memory channels	2 (Dual Channel)
85.4 GB/s	Max. Bandwidth	120.0 GB/s
No	ECC	Yes
--	L2 Cache	6.00 MB
14.00 MB	L3 Cache	16.00 MB
3.0	PCIe version	4.0
44	PCIe lanes	20
43.3 GB/s	PCIe Bandwidth	39.4 GB/s
Thermal Management The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i9-7900X has a TDP of 140 W, that of the AMD Ryzen 5 8640U is 28 W.
Intel Core i9-7900X	Characteristic	AMD Ryzen 5 8640U
140 W	TDP (PL1 / PBP)	28 W
--	TDP (PL2)	--
--	TDP up	30 W
--	TDP down	15 W
--	Tjunction max.	100 °C
Technical details The Intel Core i9-7900X has a 14.00 MB cache, while the AMD Ryzen 5 8640U cache has a total of 22.00 MB.
Intel Core i9-7900X	Characteristic	AMD Ryzen 5 8640U
14 nm	Technology	4 nm
Monolithic	Chip design	Monolithic
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,FMA3, AVX2, AVX512
LGA 2066	Socket	FP8
VT-x, VT-x EPT, VT-d	Virtualization	AMD-V, SVM
Yes	AES-NI	Yes
Windows 10, Linux	Operating systems	Windows 10, Windows 11, Linux
Q2/2017	Release date	Q1/2024
989 $	Release price	--

show more data		show more data

Intel Core i9-7900X 10C 20T @ 3.30 GHz (4.30 GHz) buy now on Amazon and save! AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz (4.90 GHz) buy now on Amazon and save!

Rate these processors

Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks

Intel Core i9-7900X (67%)

AMD Ryzen 5 8640U (100%)

⌀ Multi core performance in 3 CPU benchmarks

Intel Core i9-7900X (100%)

AMD Ryzen 5 8640U (86%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 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.


	Intel Core i9-7900X 10C 20T @ 4.30 GHz	1222 (79%)
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	1552 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	14998 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	10675 (71%)

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.


	Intel Core i9-7900X 10C 20T @ 4.30 GHz	1133 (61%)
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	1869 (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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	10199 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	8853 (87%)

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.


	Intel Core i9-7900X 10C 20T @ 4.30 GHz	1410 (60%)
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	2340 (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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	9120 (99%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	9197 (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.


	Intel Core i9-7900X 10C 20T @ 4.30 GHz	461 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	0 (0%)

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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	5286 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	0 (0%)

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.


	Intel Core i9-7900X @ 0.00 GHz	0 (0%)
	AMD Ryzen 5 8640U AMD Radeon 760M @ 2.60 GHz	2663 (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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	21190 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	137.7 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.


	Intel Core i9-7900X 10C 20T @ 3.30 GHz	5530 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	0 (0%)

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.


	Intel Core i9-7900X 10C 20T @ 4.30 GHz	188 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 4.90 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.


	Intel Core i9-7900X 10C 20T @ 4.00 GHz	2194 (100%)
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	0 (0%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.


	Intel Core i9-7900X 3.30 GHz	0 (0%)
	AMD Ryzen 5 8640U 10,675 CB R23 MC @ 24 W	445 (100%)

Devices using this processor
Intel Core i9-7900X	AMD Ryzen 5 8640U
Unknown	Unknown

Popular comparisons containing this CPUs


1.		Intel Core i9-7900X vs Intel Core i7-8700K
2.		AMD Ryzen Threadripper 1950X vs Intel Core i9-7900X
3.		Intel Core i9-7900X vs Intel Core i9-9900K
4.		Intel Core i9-7900X vs AMD Ryzen 9 3900X
5.		AMD Ryzen Threadripper 1920X vs Intel Core i9-7900X
6.		Intel Core i9-7900X vs Intel Core i7-7820X
7.		Intel Xeon E5-2699 v4 vs Intel Core i9-7900X
8.		Intel Core i9-10900K vs Intel Core i9-7900X
9.		Intel Core i9-7900X vs Intel Core i9-7920X
10.		Intel Core i9-7900X vs Intel Core i7-7700K