Radeon HD 7690M vs Radeon RX 640

When comparing Radeon HD 7690M and Radeon RX 640, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7690M and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon HD 7690M and Radeon RX 640 are Laptop Graphics Cards

Note: Radeon HD 7690M 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 7690M or Radeon RX 640 here:

Main Specs

  Radeon HD 7690M Radeon RX 640
Power consumption (TDP) 20 Watt 50 Watt
Interface MXM-A (3.0) PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5/DDR3 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 640 has 150% more power consumption, than Radeon HD 7690M.
  • Radeon HD 7690M is connected by MXM-A (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • Radeon RX 640 has 3 GB more memory, than Radeon HD 7690M.
  • Both cards are used in Laptops.
  • Radeon HD 7690M is build with Terascale 2 architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 618 MHz higher, than Radeon HD 7690M.
  • Radeon HD 7690M is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 2400 MHz higher, than Radeon HD 7690M.

Game benchmarks

high / 1080p 2−3 5−6
ultra / 1080p 0−1 3−4
QHD / 1440p 0−1 2−3
low / 720p 12−14 16−18
medium / 1080p 4−5 7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 66% more, than Radeon HD 7690M.

Full Specs

  Radeon HD 7690M Radeon RX 640
Architecture Terascale 2 Polaris
Code name Thames XT / XTX Polaris 12
Type Laptop Laptop
Release date 7 June 2011 12 August 2019
Pipelines 480 640
Core clock speed 600 MHz 1218 MHz
Boost Clock 725 MHz 1218 MHz
Transistor count 716 million 2,200 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 17.40 38.98
Floating-point performance 696.0 gflops
Memory bus width 128 Bit 64 Bit
Memory clock speed 3600/1800 MHz 6000 MHz
Memory bandwidth 28.8 GB/s 112.0 GB/s
Shared memory - -
DirectX 11.2 (11_0) 12 (12_0)
Shader Model 5.0 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan N/A 1.2.131
FreeSync +
Laptop size medium sized large
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