Radeon HD 8730M vs Radeon RX 640

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 8730M and Radeon RX 640. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 8730M and Radeon RX 640. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon HD 8730M and Radeon RX 640 are Laptop Graphics Cards

Note: Radeon HD 8730M and Radeon RX 640 are only used in laptop graphics. They have 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 HD 8730M or Radeon RX 640 here:

Main Specs

  Radeon HD 8730M 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 HD 8730M.
  • Both cards are used in Laptops.
  • Radeon HD 8730M is build with GCN architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 568 MHz higher, than Radeon HD 8730M.
  • Radeon HD 8730M is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 4000 MHz higher, than Radeon HD 8730M.

Game benchmarks

high / 1080p 0−1 5−6
ultra / 1080p 3−4
QHD / 1440p 0−1 2−3
low / 720p 1−2 16−18
medium / 1080p 0−1 7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 1600% more, than Radeon HD 8730M.

Full Specs

  Radeon HD 8730M Radeon RX 640
Architecture GCN Polaris
Code name Mars Polaris 12
Type Laptop Laptop
Release date 16 November 2012 12 August 2019
Pipelines 384 640
Core clock speed 650 MHz 1218 MHz
Boost Clock 700 MHz 1218 MHz
Transistor count 950 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 16.80 38.98
Floating-point performance 537.6 gflops
Memory bus width 128 Bit 64 Bit
Memory clock speed 2000 MHz 6000 MHz
Memory bandwidth 32 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 medium sized large
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