AMD Radeon RX 640

AMD Radeon RX 640

The AMD Radeon RX 640 is mobile mid-range graphics card for laptops based on the Polaris architecture. It features 640 shaders (10 CUs) or 512 shaders (8 CUs) with different clock speeds. Compared to the older RX 550(X), the RX 640 seems to offer only half of the memory bandwidth (64 Bit memory bus instead of 128 Bit).

The performance should be slightly lower than the old RX 550 and therefore a Nvidia GeForce MX150. Only low demanding games are therefore playable with the GPU.

Radeon 600 Series
Radeon RX 640 640 @ 1287 (Boost) MHz64 Bit @ 7000 MHz
Radeon 630 (compare) 512 @ 1219 (Boost) MHz64 Bit @ 6000 MHz
Radeon 625 (compare) 384 @ 1024 (Boost) MHz64 Bit @ 2250 MHz
Radeon 620 (compare) 384 @ 1024 (Boost) MHz64 Bit @ 2250 MHz
Radeon 610 (compare) 320 @ 1030 (Boost) MHz64 Bit @ 2250 MHz
CodenamePolaris 12
Pipelines640 - unified
Core Speed1287 (Boost) MHz
Memory Speed7000 MHz
Memory Bus Width64 Bit
Memory TypeGDDR5
Max. Amount of Memory4096 MB
Shared Memoryno
DirectXDirectX 12
technology14 nm
FeaturesDisplayPort 1.3 HBR / 1.4 HDR Ready, HDMI 2.0, AMD FreeSync
Notebook Sizelarge
Date of Announcement12.08.2019
Link to Manufacturer Page


- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

restrict list:

show all (including archived), 2020, 2019

No reviews found for this graphics card.

» Comparison of GPUs
Detailed list of all laptop GPUs sorted by class and performance.

» Benchmark List
Sort and restrict laptop GPUs based on performance in synthetic benchmarks.

» Notebook Gaming List
Playable games for each graphics card and their average FPS results.

Class 1

Class 2

Class 3

Class 4

Class 5

Class 6


* Approximate position of the graphics adapter

Please share our article, every link counts!
> Notebook / Laptop Reviews and News > Benchmarks / Tech > Comparison of Laptop Graphics Cards > AMD Radeon RX 640 Laptop Graphics Card
Klaus Hinum (Update: 2019-09- 9)