Quadro M620 vs Radeon HD 7950

If you are going to buy a new graphics card and are choosing between Quadro M620 and Radeon HD 7950, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Quadro M620 stacks up against Radeon HD 7950, check out specs charts below.

Quadro M620 is a Laptop Graphics Card

Note: Quadro M620 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 Quadro M620 here:

Main Specs

  Quadro M620 Radeon HD 7950
Power consumption (TDP) 30 Watt 200 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 2x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 3 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 7950 has 566% more power consumption, than Quadro M620.
  • Radeon HD 7950 has 1 GB more memory, than Quadro M620.
  • Quadro M620 is used in Mobile workstations, and Radeon HD 7950 - in Desktops.
  • Quadro M620 is build with Maxwell architecture, and Radeon HD 7950 - with GCN 1.0.
  • Quadro M620 and Radeon HD 7950 are manufactured by 28 nm process technology.
  • Memory clock speed of Quadro M620 is 3762 MHz higher, than Radeon HD 7950.

Game benchmarks

high / 1080p 14−16 35−40
ultra / 1080p 8−9 21−24
QHD / 1440p 3−4 16−18
4K / 2160p 10−11
low / 720p 30−35 60−65
medium / 1080p 18−20 40−45
The average gaming FPS of Radeon HD 7950 in Assassin's Creed Odyssey is 140% more, than Quadro M620.

Full Specs

  Quadro M620 Radeon HD 7950
Architecture Maxwell GCN 1.0
Code name Tahiti
Type Mobile workstation Desktop
Release date 13 January 2017 31 January 2012
Pipelines 512 1792
Core clock speed 1018 MHz
Boost Clock 1250 MHz
Transistor count 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 89.60
Floating-point performance 2,867 gflops
Length 267 mm
Memory bus width 128 Bit 384 Bit
Memory clock speed 5012 MHz 1250 MHz
Memory bandwidth 80 GB/s 240 GB/s
Shared memory -
DirectX 12
Shader Model 5.0 5.1
OpenGL 4.5 4.6
OpenCL 1.2
Monero / XMR (CryptoNight) 0.56 kh/s
FreeSync +
Bus support PCIe 3.0 x16
HDMI +
Bitcoin / BTC (SHA256) 381 Mh/s
Laptop size large
Optimus +
Eyefinity +
PowerTune +
ZeroCore +
Design reference
Number of Eyefinity displays 6
CrossFire +
Decred / DCR (Decred) 0.78 Gh/s
Ethereum / ETH (DaggerHashimoto) 13.86 Mh/s
Zcash / ZEC (Equihash) 250 Sol/s
Compute units 28
Display Port 1.2
Mosaic +
nView Display Management +
3D Stereo +
AppAcceleration +
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