GeForce GTX 580M vs Quadro K420

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 580M and Quadro K420. 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 GeForce GTX 580M and Quadro K420. 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.

GeForce GTX 580M is a Laptop Graphics Card

Note: GeForce GTX 580M 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 GeForce GTX 580M here:

Main Specs

  GeForce GTX 580M Quadro K420
Power consumption (TDP) 100 Watt 41 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None None
Memory type GDDR5 128 Bit
Maximum RAM amount 2 MB 1 GB/2 GB
Display Connectors No outputs 1x DVI, 1x DisplayPort
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  • GeForce GTX 580M has 143% more power consumption, than Quadro K420.
  • GeForce GTX 580M is connected by MXM-B (3.0), and Quadro K420 uses PCIe 2.0 x16 interface.
  • GeForce GTX 580M has 1 GB more memory, than Quadro K420.
  • GeForce GTX 580M is used in Laptops, and Quadro K420 - in Desktops.
  • GeForce GTX 580M is build with Fermi architecture, and Quadro K420 - with Kepler.
  • Core clock speed of Quadro K420 is 256 MHz higher, than GeForce GTX 580M.
  • GeForce GTX 580M is manufactured by 40 nm process technology, and Quadro K420 - by 28 nm process technology.
  • Memory clock speed of Quadro K420 is 282 MHz higher, than GeForce GTX 580M.

Game benchmarks

high / 1080p 10−12 0−1
ultra / 1080p 6−7 0−1
QHD / 1440p 1−2 0−1
low / 720p 24−27 9−10
medium / 1080p 14−16 1−2
The average gaming FPS of GeForce GTX 580M in Assassin's Creed Odyssey is 300% more, than Quadro K420.

Full Specs

  GeForce GTX 580M Quadro K420
Architecture Fermi Kepler
Code name N12E-GTX2 GK107
Type Laptop Workstation
Release date 28 June 2011 22 July 2014
Pipelines 384 192
Core clock speed 620 MHz 876 MHz
Transistor count 1,950 million 1,270 million
Manufacturing process technology 40 nm 28 nm
Texture fill rate 39.7 billion/sec 14.02
Floating-point performance 952.3 gflops 336.4 gflops
Length 160 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1500 MHz 1782 MHz
Memory bandwidth 96.0 GB/s
Shared memory -
DirectX 12 API 12
Shader Model 5.1 5
OpenGL 4.5 4.5
OpenCL 1.1 1.2
Vulkan N/A +
CUDA + 3.0
CUDA cores 384
Bus support PCI-E 2.0
SLI options +
3D Blu-Ray +
3D Gaming +
Bitcoin / BTC (SHA256) 40 Mh/s 11 Mh/s
Laptop size large
Optimus +
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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