GeForce GTX 550 Ti vs Radeon RX 640

When comparing GeForce GTX 550 Ti 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 GeForce GTX 550 Ti 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 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

  GeForce GTX 550 Ti Radeon RX 640
Power consumption (TDP) 116 Watt 50 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors One 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors 2x DVI, 1x mini-HDMI 1x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 550 Ti has 132% more power consumption, than Radeon RX 640.
  • GeForce GTX 550 Ti is connected by PCIe 2.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • Radeon RX 640 has 3 GB more memory, than GeForce GTX 550 Ti.
  • GeForce GTX 550 Ti is used in Desktops, and Radeon RX 640 - in Laptops.
  • GeForce GTX 550 Ti is build with Fermi architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 318 MHz higher, than GeForce GTX 550 Ti.
  • GeForce GTX 550 Ti is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 5996 MHz higher, than GeForce GTX 550 Ti.

Game benchmarks

high / 1080p 7−8 5−6
ultra / 1080p 4−5 3−4
QHD / 1440p 0−1 2−3
low / 720p 18−20 16−18
medium / 1080p 9−10 7−8
The average gaming FPS of GeForce GTX 550 Ti in Assassin's Creed Odyssey is 25% more, than Radeon RX 640.

Full Specs

  GeForce GTX 550 Ti Radeon RX 640
Architecture Fermi Polaris
Code name GF116 Polaris 12
Type Desktop Laptop
Release date 15 March 2011 12 August 2019
Pipelines 192 640
Core clock speed 900 MHz 1218 MHz
Boost Clock 1218 MHz
Transistor count 1,170 million 2,200 million
Manufacturing process technology 40 nm 14 nm
Texture fill rate 28.8 billion/sec 38.98
Floating-point performance 691.2 gflops
Length 8.25" (21 cm)
Memory bus width 192 Bit 64 Bit
Memory clock speed 4.1 GB/s 6000 MHz
Memory bandwidth 98.4 GB/s 112.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.2 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
CUDA +
FreeSync +
CUDA cores 192
Bus support 16x PCI-E 2.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support +
HDMI +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
Bitcoin / BTC (SHA256) 44 Mh/s
Laptop size large
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