Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6600K GeForce GTX 660 MSI Hawk 2GB Edition
Red Dead Redemption 2 664% 102%
Call of Duty: Modern Warfare 664% 102%
Zombieland: Double Tap - Road Trip 614% 89%
Cyberpunk 2077 950% 178%
Microsoft Flight Simulator 950% 178%
Borderlands 3 707% 114%
FIFA 20 307% 8%
The Outer Worlds 600% 85%
eFootball PES 2020 421% 38%
Ghost Recon Breakpoint 1057% 206%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 660 MSI Hawk 2GB Edition are massively better than the Intel HD i5 6600K.

The GTX 660 has a 735 MHz higher core clock speed and 64 more Texture Mapping Units than the HD i5 6600K. This results in the GTX 660 providing 81.2 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 735 MHz higher core clock speed and 16 more Render Output Units than the HD i5 6600K. This results in the GTX 660 providing 23.2 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 HD i5 6600K was released over a year more recently than the GTX 660, and so the HD i5 6600K is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 660.

The GTX 660 has 2048 MB video memory, but the HD i5 6600K does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD i5 6600K has 24 Shader Processing Units and the GeForce GTX 660 MSI Hawk 2GB Edition has 960. However, the actual shader performance of the HD i5 6600K is 221 and the actual shader performance of the GTX 660 is 1104. The GTX 660 having 883 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 HD i5 6600K.

The HD i5 6600K transistor size technology is 14 nm (nanometers) smaller than the GTX 660. This means that the HD i5 6600K is expected to run slightly cooler and achieve higher clock frequencies than the GTX 660.

The HD i5 6600K requires 91 Watts to run but there is no entry for the GeForce GTX 660 MSI Hawk 2GB Edition. We would recommend a PSU with at least 300 Watts for the HD i5 6600K.

GPU Architecture

Core Speed350 MHzvs1085 MHz
Boost Clock1150 MHzvs1150 MHz
ArchitectureSkylake GT2-R0Kepler GK106-400-A1
OC Potential None vs Poor
Driver Support Great vs Good
Release Date05 Aug 2015vs01 Oct 2012
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
vs green tick
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GPU Memory

MemoryN/Avs2048 MB
Memory Speed1067 MHzvs1502 MHz
Memory Bus128 Bitvs192 Bit
Memory TypeDDR4vsGDDR5
Memory Bandwidth34.1GB/secvs144.2GB/sec
L2 Cache 1024 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units24vs960
Actual Shader Performance11%vs53%
Texture Mapping Units16vs80
Texture Rate5.6 GTexel/svs86.8 GTexel/s
Render Output Units8vs24
Pixel Rate2.8 GPixel/svs26 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections0vs-

GPU Power Requirements

Max Power91 Watts-
Recommended PSU300 Watts & 20 Amps-

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6600K 3.5GHzvsIntel Core i5-3470 3.2GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Intel HD i5 6600K is the specific version of Intel HD Graphics 530 Desktop that is integrated in the Core i5-6600K Processor.

The Skylake Core includes support for DirectX 12.1, OpenCL 2.0 and OpenGL 4.4. Additionally, it also supports DDR4 Memory.

It equips a GPU Codenamed GT2 which offers 24 Shader Processing Units, 16 TMUs and 8 ROPs. The Central Unit Initially Runs at 350MHz and goes up to 1150MHz, in Turbo Mode.

The GPU Shares the System's RAM which varies from laptop to laptop. Typically, the GPU reserves 1.7GB. Depending on whether or not the system's RAM is Dual-Channeled, it can access either a 64-bit or 128-bit memory interface. The operating memory clock also depends on the at which speed the System's RAM is running and is limited by the highest operating speed that the Processor supports. In this case, it is 1067MHz.
It is then obvious the Memory Bandwidth depends on a lot of factors and thus this Graphics Card performance may vary heavily from system to system.

Gaming benchmarks put its performance almost on level with a dedicated GeForce 920M.

System Suggestions
Intel HD i5 6600K is best suited for resolutions up to and including 1366x768. We recommend a Decent Processor and 4GB of RAM for Optimal Performance.
GeForce GTX 660 MSI Hawk 2GB Edition a special edition of GeForce GTX 660.
The new features include the Twin Frozr III Thermal Design cooling solution which, according to MSI, generates 20% more airflow than traditional fan design.
In terms of overclocking, the base-clock was increased from 980MHz to 1085MHz and the boost clock can now reach 1150MHz, instead of 1033MHz. The memory clock was left untouched.
The overclocking is therefore extreme and the performance boost is around 8% when compared to the standard GeForce GTX 660.
Recommended CPU
Possible GPU Upgrades
GPU Variants




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