Quadro K620M vs Radeon HD 4770

Find out if it is worth upgrading your current GPU setup by comparing Quadro K620M and Radeon HD 4770. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Quadro K620M and Radeon HD 4770. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Quadro K620M is a Laptop Graphics Card

Note: Quadro K620M 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 K620M here:

Main Specs

  Quadro K620M Radeon HD 4770
Power consumption (TDP) 30 Watt 80 Watt
Interface MXM-A (3.0) PCIe 2.0 x16
Supplementary power connectors None 1x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 512 MB
Display Connectors No outputs 2x DVI, 1x S-Video
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  • Radeon HD 4770 has 166% more power consumption, than Quadro K620M.
  • Quadro K620M is connected by MXM-A (3.0), and Radeon HD 4770 uses PCIe 2.0 x16 interface.
  • Radeon HD 4770 has 510 GB more memory, than Quadro K620M.
  • Quadro K620M is used in Mobile workstations, and Radeon HD 4770 - in Desktops.
  • Quadro K620M is build with Maxwell architecture, and Radeon HD 4770 - with TeraScale.
  • Core clock speed of Quadro K620M is 279 MHz higher, than Radeon HD 4770.
  • Quadro K620M is manufactured by 28 nm process technology, and Radeon HD 4770 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 4770 is 1200 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 3−4 1−2
ultra / 1080p 1−2 0−1
QHD / 1440p 0−1 0−1
low / 720p 14−16 10−12
medium / 1080p 5−6 2−3
The average gaming FPS of Quadro K620M in Assassin's Creed Odyssey is 60% more, than Radeon HD 4770.

Full Specs

  Quadro K620M Radeon HD 4770
Architecture Maxwell TeraScale
Code name GM108 RV740
Type Mobile workstation Desktop
Release date 1 March 2015 28 April 2009
Pipelines 384 640
Core clock speed 1029 MHz 750 MHz
Boost Clock 1124 MHz
Transistor count 826 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 24.00
Floating-point performance 863.2 gflops 960.0 gflops
Length 203 mm
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 3200 MHz
Memory bandwidth 14.4 GB/s 51.2 GB/s
Shared memory -
DirectX 12 10.1 (10_1)
Shader Model 5 4.1
OpenGL 4.5 3.3
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA +
Bitcoin / BTC (SHA256) 92 Mh/s
Optimus +
Display Port 1.2
nView Display Management +
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