Radeon Pro 555 vs Radeon RX 640

In this comparison between Radeon Pro 555 and Radeon RX 640 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon Pro 555 will be the best choice, for others Radeon RX 640 will be their preference. Study the comparison tables below and make your choice.

Radeon Pro 555 and Radeon RX 640 are Laptop Graphics Cards

Note: Radeon Pro 555 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 Pro 555 or Radeon RX 640 here:

Main Specs

  Radeon Pro 555 Radeon RX 640
Power consumption (TDP) 75 Watt 50 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon Pro 555 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 Pro 555.
  • Radeon Pro 555 is used in Mobile workstations, and Radeon RX 640 - in Laptops.
  • Radeon Pro 555 and Radeon RX 640 are build with Polaris architecture.
  • Core clock speed of Radeon RX 640 is 363 MHz higher, than Radeon Pro 555.
  • Radeon Pro 555 and Radeon RX 640 are manufactured by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 920 MHz higher, than Radeon Pro 555.

Game benchmarks

high / 1080p 16−18 5−6
ultra / 1080p 9−10 3−4
QHD / 1440p 4−5 2−3
4K / 2160p 4−5
low / 720p 30−35 16−18
medium / 1080p 20−22 7−8
The average gaming FPS of Radeon Pro 555 in Assassin's Creed Odyssey is 128% more, than Radeon RX 640.

Full Specs

  Radeon Pro 555 Radeon RX 640
Architecture Polaris Polaris
Code name Polaris 21 Polaris 12
Type Mobile workstation Laptop
Release date 5 June 2017 12 August 2019
Pipelines 768 640
Core clock speed 855 MHz 1218 MHz
Boost Clock 1218 MHz
Transistor count 3,000 million 2,200 million
Manufacturing process technology 14 nm 14 nm
Texture fill rate 40.80 38.98
Floating-point performance 1,306 gflops
Memory bus width 128 Bit 64 Bit
Memory clock speed 5080 MHz 6000 MHz
Memory bandwidth 81.6 GB/s 112.0 GB/s
Shared memory - -
DirectX 12 (12_0) 12 (12_0)
Shader Model 6.4 6.4
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2.131 1.2.131
FreeSync + +
Laptop size large large
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