AMD Radeon RX 640: specs and benchmarks

AMD Radeon RX 640

Summary

AMD started Radeon RX 640 sales 12 August 2019. This is Polaris architecture notebook card based on 14 nm manufacturing process and primarily aimed at gamers. 4 GB of GDDR5 memory clocked at 6 GHz are supplied, and together with 64 Bit memory interface this creates a bandwidth of 112.0 GB/s.

Compatibility-wise, this is card attached via PCIe 3.0 x8 interface. Power consumption is at 50 Watt.

It provides poor gaming and benchmark performance at 5.26 percent of a leader's which is AMD Radeon RX 6900 XT.

General info

Of Radeon RX 640's architecture, market type and release date.

Place in our rating
 
Value for money (0-100)
1.02
 
Architecture
Polaris
 
GPU code name
Polaris 12
 
Market segment
Laptop
 
Launch date
12 August 2019 (1 year ago)
 
Price now
$193
 

Technical specs

Radeon RX 640's general performance parameters such as number of shaders, GPU base clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon RX 640's performance, but for precise assessment you have to consider its benchmark and gaming test results.

Pipelines / CUDA cores
640
 
of 10752 (GA102)
Core clock speed
1218 MHz
 
Boost clock speed
1218 MHz
 
Number of transistors
2,200 million
 
Manufacturing process technology
14 nm
 
Thermal design power (TDP)
50 Watt
 
of 900 (Tesla S2050)
Texture fill rate
38.98
 

Compatibility, dimensions and requirements

Information on Radeon RX 640's compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Laptop size
large
 
Interface
PCIe 3.0 x8
 
Supplementary power connectors
None
 

Memory

Parameters of memory installed on Radeon RX 640: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.

Memory type
GDDR5
 
Maximum RAM amount
4 GB
 
Memory bus width
64 Bit
 
of 6144 (GRID A100A)
Memory clock speed
6000 MHz
 
of 19500 (GeForce RTX 3090)
Memory bandwidth
112.0 GB/s
 
of 1024 (Radeon VII)
Shared memory
-
 

Video outputs and ports

Types and number of video connectors present on Radeon RX 640. As a rule, this section is relevant only for desktop reference video cards, since for notebook ones the availability of certain video outputs depends on the laptop model.

Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
 
HDMI
+
 

Technologies

Technological solutions and APIs supported by Radeon RX 640. You'll probably need this information if you need some particular technology for your purposes.

FreeSync
+
 

API support

APIs supported by Radeon RX 640, sometimes including their particular versions.

DirectX
12 (12_0)
 
Shader Model
6.4
 
OpenGL
4.6
 
OpenCL
2.0
 
Vulkan
1.2.131
 

Benchmark performance

Non-gaming benchmark performance of Radeon RX 640. Note that overall benchmark performance is measured in points in 0-100 range.

Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

5.26

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

19946

3DMark Fire Strike Score

3119

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature seemingly made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic enough graphics and is quite taxing on hardware.

3499

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

5235

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

14141

Passmark

This is probably the most ubiquitous benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

1371

Game benchmarks

Let's see how good Radeon RX 640 is for gaming. Particular gaming benchmark results are measured in frames per second. Comparisons with game system requirements are included, but remember that sometimes official requirements may reflect reality inaccurately.

This video card matches 76% minimum and 65% recommended requirements of all games known to us.

Minimum
76%
Recommended
65%
Minimum
76%
Recommended
65%

Here are the average frames per second in a large set of popular games across different resolutions:

1080p
 
24
 

NVIDIA equivalent

We believe that the nearest equivalent to Radeon RX 640 from NVIDIA is GeForce GT 750M, which is slower by 1% and lower by 3 positions in our rating.

Here are some closest NVIDIA rivals to Radeon RX 640:

Similar GPUs

Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.

User rating

Here you can see the user rating of the graphics card, as well as rate it yourself.

Advices and comments

Here you can ask a question about Radeon RX 640, agree or disagree with our judgements, or report an error or mismatch.