FirePro W4100 vs Iris Plus Graphics 655

If you are going to buy a new graphics card and are choosing between FirePro W4100 and Iris Plus Graphics 655, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the FirePro W4100 stacks up against Iris Plus Graphics 655, check out specs charts below.

Iris Plus Graphics 655 is a Laptop Graphics Card

Note: Iris Plus Graphics 655 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 Plus Graphics 655 here:

Main Specs

  FirePro W4100 Iris Plus Graphics 655
Power consumption (TDP) 50 Watt 15 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x1
Supplementary power connectors None
Memory type GDDR5 DDR3/DDR4
Maximum RAM amount 2 GB
Display Connectors 4x mini-DisplayPort No outputs
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  • FirePro W4100 has 233% more power consumption, than Iris Plus Graphics 655.
  • FirePro W4100 is connected by PCIe 3.0 x16, and Iris Plus Graphics 655 uses PCIe 3.0 x1 interface.
  • FirePro W4100 is used in Desktops, and Iris Plus Graphics 655 - in Laptops.
  • FirePro W4100 is build with GCN architecture, and Iris Plus Graphics 655 - with Gen. 9.5 Kaby Lake.
  • Core clock speed of FirePro W4100 is 330 MHz higher, than Iris Plus Graphics 655.
  • FirePro W4100 is manufactured by 28 nm process technology, and Iris Plus Graphics 655 - by 14 nm process technology.

Game benchmarks

high / 1080p 6−7 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 16−18 27−30
medium / 1080p 8−9 16−18
The average gaming FPS of Iris Plus Graphics 655 in Assassin's Creed Odyssey is 77% more, than FirePro W4100.

Full Specs

  FirePro W4100 Iris Plus Graphics 655
Architecture GCN Gen. 9.5 Kaby Lake
Code name Cape Verde Kaby Lake GT3e
Type Workstation Laptop
Release date 2 October 2015 1 September 2017
Pipelines 512 48
Core clock speed 630 MHz 300 MHz
Boost Clock 1200 MHz
Transistor count 1,500 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 20.16 50.40
Floating-point performance 645.1 gflops
Length 171 mm
Memory bus width 128 Bit
Memory clock speed 4000 MHz
Memory bandwidth 72 GB/s
Shared memory - +
DirectX 12 (11_1) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.2.131 1.1.103
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 79 Mh/s
Quick Sync +
Form factor low profile / half length
Dual-link DVI support +
AppAcceleration +
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