Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Iris Graphics 5100 Desktop GeForce GTX 660 3GB (OEM)
Resident Evil 8 1132% 200%
Age of Empires IV 847% 131%
Grand Theft Auto VI 1233% 224%
Far Cry 6 1270% 234%
Days Gone 797% 118%
Battlefield 6 1132% 200%
Outriders 1132% 200%
It Takes Two 721% 100%
Star Citizen 732% 102%
Total War: Rome Remastered 68% 59%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 3GB (OEM) are massively better than the Intel Iris Graphics 5100 Desktop.

The GTX 660 has a 423 MHz higher core clock speed and 88 more Texture Mapping Units than the Graphics 5100. This results in the GTX 660 providing 75.8 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 660 has a 423 MHz higher core clock speed and 20 more Render Output Units than the Graphics 5100. This results in the GTX 660 providing 18.2 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Graphics 5100 was released less than a year after the GTX 660, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GTX 660 has 3072 MB video memory, but the Graphics 5100 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Iris Graphics 5100 Desktop has 160 Shader Processing Units and the GeForce GTX 660 3GB (OEM) has 1152. However, the actual shader performance of the Graphics 5100 is 314 and the actual shader performance of the GTX 660 is 1023. The GTX 660 having 709 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 660 delivers a massively smoother and more efficient experience when processing graphical data than the Graphics 5100.

The Graphics 5100 transistor size technology is 6 nm (nanometers) smaller than the GTX 660. This means that the Graphics 5100 is expected to run very slightly cooler and achieve higher clock frequencies than the GTX 660.

The Iris Graphics 5100 Desktop requires 28 Watts to run and the GeForce GTX 660 3GB (OEM) requires 130 Watts. We would recommend a PSU with at least 450 Watts for the GTX 660, but we do not have a recommended PSU wattage for the Graphics 5100. The GTX 660 requires 102 Watts more than the Graphics 5100 to run. The difference is significant enough that the GTX 660 may have an adverse affect on your yearly electricity bills in comparison to the Graphics 5100.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed400 MHzvs823 MHz
Boost Clock-vs888 MHz
ArchitectureHaswell: GT3Kepler GK104-200-KD-A2
OC Potential None vs Good
Driver Support - vs Good
Release Date29 Apr 2013vs22 Aug 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
1920x1080 - vs green tick
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

MemoryN/Avs3072 MB
Memory Speed800 MHzvs1400 MHz
Memory Bus128 Bitvs192 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth25.6GB/secvs134.4GB/sec
L2 Cache - vs green tick 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units160vs1152
Actual Shader Performance15%vs49%
Texture Mapping Units8vs96
Texture Rate3.2 GTexel/svs79 GTexel/s
Render Output Units4vs24
Pixel Rate1.6 GPixel/svs19.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power28 Wattsvs130 Watts
Recommended PSU-450 Watts & 30 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.0vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended Processor-Intel Core i5-3470 3.2GHz
Recommended RAM-8 GB
Maximum Recommended Gaming Resolution1366x768vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewIris Graphics 5100 Desktop are found in some of the 2013 Haswell desktop processors.
They feature 40 Execution Units (160 Shader Processing Units), 8 TMUs and 4 ROPs. They share system memory and so the memory channel and speed will depend on the users configuration. The best possible combination is a dual-channel bus-width with an operating memory clock of 800MHz.
Its central unit and turbo frequency also depend on the CPU its embedded but it ranges from 400MHz to 1350MHz.
Its performance is average and only somewhat better than what dedicated GeForce GT 630 & Radeon 6570 offer.
GeForce GTX 660 3GB (OEM) is a high-end Graphics Card based on the 28nm, Kepler architecture.

It offers the GK104-200-KD-A2 GPU which features 1152 Shader Processing Units, 96 TMUs and 24 ROPs, on a 192-bit memory interface of fast GDDR5.
While the central unit runs at 823MHz and goes up to 888MHz, in turbo mode, the memory clock operates at 1400MHz.
When compared to the 1.5GB version, the frame buffer was doubled to 3GB though this will not boost its performance and can be addressed as a gimmick - marketing to lure consumers into paying more for the same product.

It is an OEM card that despite the core differences, performs similar to the retail version.
Recommended CPU
Possible GPU Upgrades
GPU Variants