Radeon R7 250 vs Radeon RX 640

When choosing between Radeon R7 250 and Radeon RX 640, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon R7 250 and Radeon RX 640.

Radeon RX 640 is a Laptop Graphics Card

Note: Radeon RX 640 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon RX 640 here:

Main Specs

  Radeon R7 250 Radeon RX 640
Power consumption (TDP) 75 Watt 50 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors N/A None
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x VGA 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R7 250 has 50% more power consumption, than Radeon RX 640.
  • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
  • Radeon RX 640 has 2 GB more memory, than Radeon R7 250.
  • Radeon R7 250 is used in Desktops, and Radeon RX 640 - in Laptops.
  • Radeon R7 250 is build with GCN architecture, and Radeon RX 640 - with Polaris.
  • Radeon R7 250 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 4850 MHz higher, than Radeon R7 250.

Game benchmarks

high / 1080p 3−4 5−6
ultra / 1080p 1−2 3−4
QHD / 1440p 0−1 2−3
low / 720p 14−16 16−18
medium / 1080p 5−6 7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 33% more, than Radeon R7 250.

Full Specs

  Radeon R7 250 Radeon RX 640
Architecture GCN Polaris
Code name Oland XT Polaris 12
Type Desktop Laptop
Release date 1 October 2013 12 August 2019
Pipelines 384 640
Core clock speed 1218 MHz
Boost Clock 1050 MHz 1218 MHz
Transistor count 950 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 25.20 38.98
Floating-point performance 716.8 gflops
Length 168 mm
Memory bus width 128 Bit 64 Bit
Memory clock speed 1150 MHz 6000 MHz
Memory bandwidth 72 GB/s 112.0 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131
FreeSync + +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 117 Mh/s
Laptop size large
Design reference
CrossFire +
DDMA audio +
Ethereum / ETH (DaggerHashimoto) 3 Mh/s
AppAcceleration +
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