Radeon R7 A265 vs Radeon RX 640

If you are going to buy a new graphics card and are choosing between Radeon R7 A265 and Radeon RX 640, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon R7 A265 stacks up against Radeon RX 640, check out specs charts below.

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 A265 Radeon RX 640
Power consumption (TDP) 50 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • 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 A265.
  • Radeon R7 A265 is used in Desktops, and Radeon RX 640 - in Laptops.
  • Radeon R7 A265 is build with GCN 1.0 architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 493 MHz higher, than Radeon R7 A265.
  • Radeon R7 A265 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 4200 MHz higher, than Radeon R7 A265.

Game benchmarks

high / 1080p 1−2 5−6
ultra / 1080p 0−1 3−4
QHD / 1440p 0−1 2−3
low / 720p 12−14 16−18
medium / 1080p 3−4 7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 66% more, than Radeon R7 A265.

Full Specs

  Radeon R7 A265 Radeon RX 640
Architecture GCN 1.0 Polaris
Code name Opal Polaris 12
Type Desktop Laptop
Release date 9 January 2014 12 August 2019
Pipelines 384 640
Core clock speed 725 MHz 1218 MHz
Boost Clock 825 MHz 1218 MHz
Transistor count 950 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 19.80 38.98
Floating-point performance 633.6 gflops
Memory bus width 128 Bit 64 Bit
Memory clock speed 1800 MHz 6000 MHz
Memory bandwidth 28.8 GB/s 112.0 GB/s
Shared memory -
DirectX 12 (11_1) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
FreeSync +
Laptop size large
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