Iris Graphics 540 vs Quadro K620

In this comparison between Iris Graphics 540 and Quadro K620 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Iris Graphics 540 will be the best choice, for others Quadro K620 will be their preference. Study the comparison tables below and make your choice.

Iris Graphics 540 is a Laptop Graphics Card

Note: Iris Graphics 540 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 Graphics 540 here:

Main Specs

  Iris Graphics 540 Quadro K620
Power consumption (TDP) 15 Watt 41 Watt
Interface PCIe 3.0 x1 PCIe 2.0 x16
Supplementary power connectors None
Memory type eDRAM 128 Bit
Maximum RAM amount 64 MB 2 GB
Display Connectors No outputs 1x DVI, 1x DisplayPort
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  • Quadro K620 has 173% more power consumption, than Iris Graphics 540.
  • Iris Graphics 540 is connected by PCIe 3.0 x1, and Quadro K620 uses PCIe 2.0 x16 interface.
  • Iris Graphics 540 has 62 GB more memory, than Quadro K620.
  • Iris Graphics 540 is used in Laptops, and Quadro K620 - in Desktops.
  • Iris Graphics 540 is build with Gen. 9 Skylake architecture, and Quadro K620 - with Maxwell.
  • Core clock speed of Quadro K620 is 758 MHz higher, than Iris Graphics 540.
  • Iris Graphics 540 is manufactured by 14 nm process technology, and Quadro K620 - by 28 nm process technology.

Game benchmarks

high / 1080p 8−9 10−12
ultra / 1080p 5−6 6−7
QHD / 1440p 0−1 1−2
low / 720p 20−22 24−27
medium / 1080p 10−12 14−16
The average gaming FPS of Quadro K620 in Assassin's Creed Odyssey is 27% more, than Iris Graphics 540.

Full Specs

  Iris Graphics 540 Quadro K620
Architecture Gen. 9 Skylake Maxwell
Code name Skylake GT3e GM107
Type Laptop Workstation
Release date 1 September 2015 22 July 2014
Pipelines 48 384
Core clock speed 300 MHz 1058 MHz
Boost Clock 1050 MHz 1124 MHz
Transistor count 189 million 1,870 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 50.40 26.98
Floating-point performance 863.2 gflops
Length 160 mm
Memory bus width 128 Bit
Memory clock speed 1800 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 5.0
Bitcoin / BTC (SHA256) 104 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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