Iris Pro Graphics 580 vs Quadro K420

When comparing Iris Pro Graphics 580 and Quadro K420, 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 Iris Pro Graphics 580 and Quadro K420 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Iris Pro Graphics 580 is a Laptop Graphics Card

Note: Iris Pro Graphics 580 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 Iris Pro Graphics 580 here:

Main Specs

  Iris Pro Graphics 580 Quadro K420
Power consumption (TDP) 15 Watt 41 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Supplementary power connectors None
Memory type DDR3L/LPDDR3/DDR4 128 Bit
Maximum RAM amount 64 GB 1 GB/2 GB
Display Connectors No outputs 1x DVI, 1x DisplayPort
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  • Quadro K420 has 173% more power consumption, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is connected by PCIe 3.0 x1, and Quadro K420 uses PCIe 2.0 x16 interface.
  • Iris Pro Graphics 580 has 63 GB more memory, than Quadro K420.
  • Iris Pro Graphics 580 is used in Laptops, and Quadro K420 - in Desktops.
  • Iris Pro Graphics 580 is build with Gen. 9 Skylake architecture, and Quadro K420 - with Kepler.
  • Core clock speed of Quadro K420 is 526 MHz higher, than Iris Pro Graphics 580.
  • Iris Pro Graphics 580 is manufactured by 14 nm process technology, and Quadro K420 - by 28 nm process technology.

Game benchmarks

high / 1080p 9−10 0−1
ultra / 1080p 5−6 0−1
QHD / 1440p 0−1 0−1
low / 720p 20−22 9−10
medium / 1080p 10−12 1−2
The average gaming FPS of Iris Pro Graphics 580 in Assassin's Creed Odyssey is 220% more, than Quadro K420.

Full Specs

  Iris Pro Graphics 580 Quadro K420
Architecture Gen. 9 Skylake Kepler
Code name Skylake GT4e GK107
Type Laptop Workstation
Release date 1 September 2015 22 July 2014
Pipelines 72 192
Core clock speed 350 MHz 876 MHz
Boost Clock 1050 MHz
Transistor count 189 million 1,270 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 72.00 14.02
Floating-point performance 336.4 gflops
Length 160 mm
Memory bus width 128 Bit
Memory clock speed 1782 MHz
Shared memory +
DirectX 12 (12_1) 12
Shader Model 6.4 5
OpenGL 4.6 4.5
OpenCL 2.1 1.2
Vulkan 1.1.97 +
CUDA 3.0
Bitcoin / BTC (SHA256) 11 Mh/s
Quick Sync +
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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