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AMD Ryzen 5 8640U Benchmark, Test and specs

Last updated: 2024-07-09

The AMD Ryzen 5 8640U has 6 cores with 12 threads and is based on the 7. gen of the AMD Ryzen 5 series. The processor uses a mainboard with the FP8 socket and was released in Q1/2024. The AMD Ryzen 5 8640U scores 1,869 points in the Geekbench 5 single-core benchmark. In the Geekbench 5 multi-core benchmark, the result is 8,853 points.

At a glance
Name:	AMD Ryzen 5 8640U
Family:	AMD Ryzen 5 (93)
CPU group:	AMD Ryzen 8040 (21)
Architecture:	Hawk Point (Zen 4)
Technology:	4 nm
Segment:	Notebook
Generation:	7
Predecessor:	AMD Ryzen 5 7640U
Successor:	--

CPU Cores and Base Frequency

The AMD Ryzen 5 8640U has 6 CPU cores and can calculate 12 threads in parallel. The clock frequency of the AMD Ryzen 5 8640U is 3.50 GHz (4.90 GHz). The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.

CPU Cores / Threads:	6 / 12
Core architecture:	normal
Cores:	6x Zen 4

Hyperthreading / SMT:	Yes
Overclocking:	No
Frequency:	3.50 GHz
Turbo Frequency (1 Core):	4.90 GHz
Turbo Frequency (6 Cores):	--

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.

Integrated graphics (iGPU)

The AMD Ryzen 5 8640U has integrated graphics, called iGPU for short. Specifically, the AMD Ryzen 5 8640U uses the AMD Radeon 760M, which has 512 texture shaders and 8 execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

GPU name:	AMD Radeon 760M
GPU frequency:	0.80 GHz
GPU (Turbo):	2.60 GHz
Compute units:	8
Shader:	512
Hardware Raytracing:	Yes
Release date:	Q1/2023

Max. displays:	4
Generation:	10
Direct X:	12
Technology:	4 nm
Max. GPU Memory:	32 GB
Frame Generation:	AMD FSR

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.

h265 / HEVC (8 bit):	Decode / Encode
h265 / HEVC (10 bit):	Decode / Encode
h264:	Decode / Encode
VP8:	Decode
VP9:	Decode

AV1:	Decode / Encode
AVC:	Decode
VC-1:	Decode
JPEG:	Decode / Encode

Memory type:	Memory bandwidth:
Memory & PCIe The processor can use up to 256 GB memory in 2 (Dual Channel) memory channels. The maximum memory bandwidth is 120.0 GB/s. The memory type as well as the amount of memory can greatly affect the speed of the system.

DDR5-4800 DDR5-5600 LPDDR5-6400 LPDDR5X-7500	76.8 GB/s 89.6 GB/s 102.4 GB/s 120.0 GB/s
Max. Memory:	256 GB
Memory channels:	2 (Dual Channel)
ECC:	No
PCIe:	4.0 x 20
PCIe Bandwidth:	39.4 GB/s

Thermal Management The thermal design power (TDP for short) of the processor is 28 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. The TDP usually gives a rough idea of the actual power consumption of the CPU.

TDP (PL1 / PBP):	28 W
TDP (PL2):	--
TDP up:	30 W
TDP down:	15 W
Tjunction max.:	100 °C

Technical details

The AMD Ryzen 5 8640U is made in 4 nm. The smaller the manufacturing process of a CPU, the more modern and energy-efficient it is. Overall, the processor has 22.00 MB cache. A large cache can greatly speed up the processor's speed in some cases such as games.

Technology:	4 nm
Chip design:	Monolithic
Socket:	FP8
L2-Cache:	6.00 MB
L3-Cache:	16.00 MB
AES-NI:	Yes
Operating systems:	Windows 10, Windows 11, Linux

Virtualization:	AMD-V, SVM
Instruction set (ISA):	x86-64 (64 bit)
ISA extensions:	SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
Release date:	Q1/2024
Release price:	--
Part Number:	100-000001313
Documents:	Technical data sheet

AMD Ryzen 5 8640U
6C 12T @ 3.50 GHz (4.90 GHz)

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Benchmark results

The benchmark results for the AMD Ryzen 5 8640U have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.

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 i7-11375H 4C 8T @ 5.00 GHz	1574
	Intel Core Ultra 5 125U 12C 14T @ 4.30 GHz	1567
	Intel Processor U300 5C 6T @ 4.40 GHz	1554
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	1552
	AMD Ryzen 5 7640U 6C 12T @ 4.90 GHz	1552
	AMD Ryzen 5 PRO 7640U 6C 12T @ 4.90 GHz	1552
	AMD Ryzen 5 PRO 8640U 6C 12T @ 4.90 GHz	1552

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.


	AMD Ryzen 7 7730U 8C 16T @ 2.80 GHz	10856
	Intel Core i5-1340P 12C 16T @ 1.80 GHz	10782
	AMD Ryzen 7 5825U 8C 16T @ 3.50 GHz	10751
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	10675
	AMD Ryzen 5 PRO 8640U 6C 12T @ 3.50 GHz	10675
	AMD Ryzen 5 PRO 7640U 6C 12T @ 3.50 GHz	10675
	AMD Ryzen 5 7640U 6C 12T @ 3.50 GHz	10675

Geekbench 6 Single-Core

Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.


	Intel Core i5-13500H 12C 16T @ 4.70 GHz	2351
	Intel Core i5-13505H 12C 16T @ 4.70 GHz	2351
	Intel Core i9-12950HX 16C 24T @ 5.00 GHz	2349
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	2340
	AMD Ryzen 5 7640U 6C 12T @ 4.90 GHz	2340
	AMD Ryzen 5 PRO 7640U 6C 12T @ 4.90 GHz	2340
	AMD Ryzen 5 PRO 8640U 6C 12T @ 4.90 GHz	2340

Geekbench 6 Multi-Core

The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.


	AMD Ryzen 7 PRO 6850HS 8C 16T @ 3.60 GHz	9432
	Intel Core i5-12450HX 8C 12T @ 2.40 GHz	9230
	Intel Core i7-11800H 8C 16T @ 3.40 GHz	9219
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	9197
	AMD Ryzen 5 7640U 6C 12T @ 3.50 GHz	9197
	AMD Ryzen 5 PRO 7640U 6C 12T @ 3.50 GHz	9197
	AMD Ryzen 5 PRO 8640U 6C 12T @ 3.50 GHz	9197

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.


	Apple M2 8C 8T @ 3.50 GHz	1874
	Apple M2 (8-GPU) 8C 8T @ 3.50 GHz	1874
	Apple M2 Pro (12-CPU 19-GPU) 12C 12T @ 3.50 GHz	1874
	AMD Ryzen 5 8640U 6C 12T @ 4.90 GHz	1869
	AMD Ryzen 5 7640U 6C 12T @ 4.90 GHz	1869
	AMD Ryzen 5 PRO 7640U 6C 12T @ 4.90 GHz	1869
	AMD Ryzen 5 PRO 8640U 6C 12T @ 4.90 GHz	1869

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 Ryzen 7 6800HS 8C 16T @ 3.60 GHz	8936
	Intel Xeon W-10885M 8C 16T @ 4.20 GHz	8927
	AMD Ryzen 7 PRO 6860Z 8C 16T @ 2.70 GHz	8883
	AMD Ryzen 5 8640U 6C 12T @ 3.50 GHz	8853
	Apple M2 8C 8T @ 3.50 GHz	8853
	Apple M2 (8-GPU) 8C 8T @ 3.50 GHz	8853
	AMD Ryzen 5 7640U 6C 12T @ 3.50 GHz	8853

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 Ryzen 7 6800H AMD Radeon 680M @ 2.20 GHz	3379
	Apple M2 (8-GPU) Apple M2 (8 Core) @ 1.40 GHz	2840
	Apple M3 (8-GPU) Apple M3 (8 Core) @ 1.40 GHz	2840
	AMD Ryzen 5 8640U AMD Radeon 760M @ 2.60 GHz	2663
	AMD Ryzen 5 7640HS AMD Radeon 760M @ 2.60 GHz	2663
	AMD Ryzen 5 7640U AMD Radeon 760M @ 2.60 GHz	2663
	AMD Ryzen 5 PRO 7640HS AMD Radeon 760M @ 2.60 GHz	2663

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.


	AMD Ryzen 7 7840U 13,450 CB R23 MC @ 30 W	448
	AMD Ryzen 5 7640U 10,675 CB R23 MC @ 24 W	445
	AMD Ryzen 5 PRO 8640U 10,675 CB R23 MC @ 24 W	445
	AMD Ryzen 5 8640U 10,675 CB R23 MC @ 24 W	445
	Apple M1 (7-GPU) 7,759 CB R23 MC @ 18 W	431
	Apple M1 7,759 CB R23 MC @ 18 W	431
	Apple M2 (8-GPU) 8,558 CB R23 MC @ 20 W	428

Benchmarks

Cinebench R23 (SC)
644 entries

Cinebench R23 (MC)
624 entries

Geekbench 6 (SC)
1,875 entries

Geekbench 6 (MC)
1,809 entries

Geekbench 5 (SC)
2,509 entries

Geekbench 5 (MC)
2,476 entries

FP32 SP (iGPU)
2,154 entries

3DMark Timespy (iGPU)
530 entries

CPU performance per watt (efficiency)
138 entries

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AI hardware:	--
AI specifications:	--
NPU + CPU + iGPU:	--