Iris Graphics 6100 vs Radeon HD 6870

When comparing Iris Graphics 6100 and Radeon HD 6870, 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 Graphics 6100 and Radeon HD 6870 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Iris Graphics 6100 is a Laptop Graphics Card

Note: Iris Graphics 6100 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 6100 here:

Main Specs

  Iris Graphics 6100 Radeon HD 6870
Power consumption (TDP) 15 Watt 151 Watt
Interface PCIe 2.0 x1 PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type System Shared GDDR5
Maximum RAM amount 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6870 has 906% more power consumption, than Iris Graphics 6100.
  • Iris Graphics 6100 is connected by PCIe 2.0 x1, and Radeon HD 6870 uses PCIe 2.0 x16 interface.
  • Iris Graphics 6100 is used in Laptops, and Radeon HD 6870 - in Desktops.
  • Iris Graphics 6100 is build with Gen. 8 Broadwell architecture, and Radeon HD 6870 - with Terascale 2.
  • Iris Graphics 6100 is manufactured by 14 nm process technology, and Radeon HD 6870 - by 40 nm process technology.

Game benchmarks

high / 1080p 4−5 10−12
ultra / 1080p 3−4 6−7
QHD / 1440p 0−1 1−2
low / 720p 12−14 24−27
medium / 1080p 5−6 12−14
The average gaming FPS of Radeon HD 6870 in Assassin's Creed Odyssey is 133% more, than Iris Graphics 6100.

Full Specs

  Iris Graphics 6100 Radeon HD 6870
Architecture Gen. 8 Broadwell Terascale 2
Code name Broadwell GT3 RV940 Barts
Type Laptop Desktop
Release date 5 January 2015 22 October 2010
Pipelines 48 1120
Core clock speed 300 MHz
Boost Clock 1100 MHz 900 MHz
Transistor count 189 million 1,700 million
Manufacturing process technology 14 nm 40 nm
Texture fill rate 52.80 50.40
Floating-point performance 2,016.0 gflops
Length 220 mm
Memory bus width 64/128 Bit 256 Bit
Memory clock speed 1050 MHz
Memory bandwidth 134.4 GB/s
Shared memory + -
DirectX 12 (11_1)
Shader Model 5.1 5.0
OpenGL 4.4 4.4
OpenCL 2.0 1.2
Vulkan 1.1.80
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 213 Mh/s
Eyefinity +
Design reference
CrossFire +
Quick Sync +
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