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Gaming Performance Comparison

Recommended System Requirements
Game Intel HD Graphics 4600 Desktop GeForce GT 640 Galaxy GC 1GB Edition
Grand Theft Auto V 513% 211%
The Witcher III 825% 370%
Batman: Arkham Knight 1125% 522%
Fallout 4 661% 287%
ARK: Survival Evolved 513% 211%
Assassins Creed: Syndicate 988% 452%
Star Wars: Battlefront 650% 281%
Mortal Kombat X 513% 211%
Pro Evolution Soccer 2016 175% 40%
WWE 2K15 488% 198%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 Galaxy GC 1GB Edition are significantly better than the Intel HD Graphics 4600 Desktop.

The GT 640 has a 550 MHz higher core clock speed and 28 more Texture Mapping Units than the Graphics 4600. This results in the GT 640 providing 28.8 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 GT 640 has a 550 MHz higher core clock speed and 14 more Render Output Units than the Graphics 4600. This results in the GT 640 providing 14.4 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 4600 was released less than a year after the GT 640, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GT 640 has 1024 MB video memory, but the Graphics 4600 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD Graphics 4600 Desktop has 20 Shader Processing Units and the GeForce GT 640 Galaxy GC 1GB Edition has 384. However, the actual shader performance of the Graphics 4600 is 100 and the actual shader performance of the GT 640 is 365. The GT 640 having 265 better shader performance and an altogether better performance when taking into account other relevant data means that the GT 640 delivers a noticeably smoother and more efficient experience when processing graphical data than the Graphics 4600.

The Graphics 4600 transistor size technology is 6 nm (nanometers) smaller than the GT 640. This means that the Graphics 4600 is expected to run very slightly cooler and achieve higher clock frequencies than the GT 640.

The HD Graphics 4600 Desktop requires 88 Watts to run and the GeForce GT 640 Galaxy GC 1GB Edition requires 65 Watts. We would recommend a PSU with at least 300 Watts for the Graphics 4600 and a PSU with at least 350 Watts for the GT 640. The Graphics 4600 requires 23 Watts more than the GT 640 to run. The difference is not significant enough for the Graphics 4600 to have a noticeably larger impact on your yearly electricity bills than the GT 640.

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GPU Core Details

Core Speed400 MHzvs950 MHz
ArchitectureHaswell GT2-MBKepler GK107-300-A2
Notebook GPUnono
SLI/Crossfirenovsno
Dedicatednovsyes
Release Date03 Jun 201305 Jun 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
3.3
vs green tick
5.2
1920x1080
2.5
vs green tick
4
2560x1440
1.9
vs green tick
2.7
3840x2160
1.2
vs green tick
1.7

GPU Memory

MemoryN/Avs1024 MB
Memory Speed800 MHzvs891 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth25.6GB/secvs28.5GB/sec
L2 Cache 1024 KB green tick vs 256 KB
Comparison

GPU Display

Shader Processing Units20vs384
Actual Shader Performance100vs365
Technology22nmvs28nm
Texture Mapping Units4vs32
Texture Rate1.6 GTexel/svs30.4 GTexel/s
Render Output Units2vs16
Pixel Rate0.8 GPixel/svs15.2 GPixel/s
Comparison

GPU Display Tech

DirectX11.1vs11
Shader Model5.0vs5.0
Open GL4.2vs4.2
Max Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections0vs2
HDMI Connections0vs0
Comparison

GPU Power Requirements

Max Power88 Wattsvs65 Watts

GPU Supporting Hardware

Recommended RAM4 GBvs8 GB
Recommended Screen Size1366x7681366x768
Recommended PSU300 Watts & 22 Ampsvs350 Watts & 26 Amps

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Intel HD Graphics 4600 Desktop are Integrated Graphics in some of Intel's Desktop Haswell Processors.

Architecture
The Haswell GT2 Core includes support for DirectX 11.1, OpenCL 1.2 and OpenGL 4.0. Additionally, it also offers better Decoding Performance, when compared to its Predecessors.

GPU
It equips a GPU Codenamed GT2 which offers 20 Shader Processing Units, 4 TMUs and 2 ROPs. The Central Unit Initially Runs at 200MHz and goes up to 1250MHz, in Turbo Mode.

Memory
The GPU Shares the System's RAM which varies from System to System. 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 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 800MHz.
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.

Performance
The Most Powerful Variant Offers Performance similar to a dedicated GeForce GT 220.
Select the Specific Version you have of this Graphics Card According to your Processor for a more Accurate Rank and experience using our tools.

System Suggestions
We recommend 4GB of RAM for a system with Intel HD Graphics 4600 Desktop.
Overview
GeForce GT 640 Galaxy GC 1GB Edition is a special edition of NVIDIA's Middle-Class GeForce GT 640, created by Galaxy.

Overclock: Central Unit
The Central Unit now runs at 950MHz, instead of 902MHz.

Overclock: Memory Clock
The Operating Memory Clock remains the same while the Frame Buffer was halved to 1GB which is adequate for the Graphics Card and will not decrease its performance.

Cooling Solution
The Cooling System remains the same.

Performance
Benchmarks indicate a 5% performance over the reference GeForce GT 640.
Recommended CPU-AMD FX-4300
Intel Core 2 Quad Q9550S 2.83GHz
Intel Core 2 Quad Q9550 2.83GHz
Intel Xeon Processor X5560
AMD Phenom II X4 960T
Possible GPU UpgradesN/AN/A
GPU VariantsHD i7 4790K
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