Quadro K620M vs Radeon HD 7750M

When comparing Quadro K620M and Radeon HD 7750M, 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 Quadro K620M and Radeon HD 7750M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Quadro K620M and Radeon HD 7750M are Laptop Graphics Cards

Note: Quadro K620M and Radeon HD 7750M 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 Quadro K620M or Radeon HD 7750M here:

Main Specs

  Quadro K620M Radeon HD 7750M
Power consumption (TDP) 30 Watt 28 Watt
Interface MXM-A (3.0) PCIe 2.0 x16
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Quadro K620M has 7% more power consumption, than Radeon HD 7750M.
  • Quadro K620M is connected by MXM-A (3.0), and Radeon HD 7750M uses PCIe 2.0 x16 interface.
  • Quadro K620M and Radeon HD 7750M have maximum RAM of 2 GB.
  • Quadro K620M is used in Mobile workstations, and Radeon HD 7750M - in Laptops.
  • Quadro K620M is build with Maxwell architecture, and Radeon HD 7750M - with GCN.
  • Core clock speed of Quadro K620M is 454 MHz higher, than Radeon HD 7750M.
  • Quadro K620M and Radeon HD 7750M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7750M is 2000 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 3−4 3−4
ultra / 1080p 1−2 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 14−16
medium / 1080p 5−6 5−6
Quadro K620M and Radeon HD 7750M have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Quadro K620M Radeon HD 7750M
Architecture Maxwell GCN
Code name GM108 Lombok XL
Type Mobile workstation Laptop
Release date 1 March 2015 24 April 2012
Pipelines 384 512
Core clock speed 1029 MHz 575 MHz
Boost Clock 1124 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 18.40
Floating-point performance 863.2 gflops 588.8 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 4000 MHz
Memory bandwidth 14.4 GB/s 64 GB/s
Shared memory - -
DirectX 12 12 (11_1)
Shader Model 5 5.1
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA +
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized
Optimus +
Display Port 1.2
nView Display Management +
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