GeForce 840A vs Iris Graphics 540

When comparing GeForce 840A and Iris Graphics 540, 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 GeForce 840A and Iris Graphics 540 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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

  GeForce 840A Iris Graphics 540
Power consumption (TDP) 33 Watt 15 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x1
Memory type DDR3 eDRAM
Maximum RAM amount 2 GB 64 MB
Display Connectors No outputs No outputs
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  • GeForce 840A has 120% more power consumption, than Iris Graphics 540.
  • GeForce 840A is connected by PCIe 3.0 x8, and Iris Graphics 540 uses PCIe 3.0 x1 interface.
  • Iris Graphics 540 has 62 GB more memory, than GeForce 840A.
  • GeForce 840A is used in Desktops, and Iris Graphics 540 - in Laptops.
  • GeForce 840A is build with Maxwell architecture, and Iris Graphics 540 - with Gen. 9 Skylake.
  • Core clock speed of GeForce 840A is 729 MHz higher, than Iris Graphics 540.
  • GeForce 840A is manufactured by 28 nm process technology, and Iris Graphics 540 - by 14 nm process technology.

Game benchmarks

high / 1080p 3−4 8−9
ultra / 1080p 2−3 5−6
QHD / 1440p 0−1 0−1
low / 720p 14−16 20−22
medium / 1080p 5−6 10−12
The average gaming FPS of Iris Graphics 540 in Assassin's Creed Odyssey is 83% more, than GeForce 840A.

Full Specs

  GeForce 840A Iris Graphics 540
Architecture Maxwell Gen. 9 Skylake
Code name GM108 Skylake GT3e
Type Desktop Laptop
Release date 17 March 2014 1 September 2015
Pipelines 384 48
Core clock speed 1029 MHz 300 MHz
Boost Clock 1124 MHz 1050 MHz
Transistor count 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98 50.40
Floating-point performance 863.2 gflops
Memory bus width 64 Bit
Memory clock speed 2002 MHz
Memory bandwidth 16.02 GB/s
Shared memory +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.1.126 1.1.97
CUDA 5.0
Quick Sync +
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