Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game HD i5 6600 GeForce GT 640 v3 Zotac 2GB Edition
Halo: Reach 143% 100%
Cyberpunk 2077 950% 765%
Dragon Ball Z Kakarot 371% 288%
Red Dead Redemption 2 664% 529%
Call of Duty: Modern Warfare 664% 529%
Microsoft Flight Simulator 950% 765%
Doom Eternal 557% 441%
Grand Theft Auto VI 1068% 862%
FIFA 20 307% 235%
Need For Speed Heat 664% 529%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 v3 Zotac 2GB Edition are noticeably better than the Intel HD i5 6600.

The GT 640 has a 696 MHz higher core clock speed and the same number of Texture Mapping Units as the HD i5 6600. This results in the GT 640 providing 11.1 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 696 MHz higher core clock speed than the HD i5 6600 and the same number of Render Output Units. This results in the GT 640 providing 5.6 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 6600 was released over a year more recently than the GT 640, and so the HD i5 6600 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GT 640.

The GT 640 has 2048 MB video memory, but the HD i5 6600 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD i5 6600 has 24 Shader Processing Units and the GeForce GT 640 v3 Zotac 2GB Edition has 384. However, the actual shader performance of the HD i5 6600 is 221 and the actual shader performance of the GT 640 is 402. The GT 640 having 181 better shader performance and an altogether better performance when taking into account other relevant data means that the GT 640 delivers a slightly smoother and more efficient experience when processing graphical data than the HD i5 6600.

The HD i5 6600 transistor size technology is 14 nm (nanometers) smaller than the GT 640. This means that the HD i5 6600 is expected to run slightly cooler and achieve higher clock frequencies than the GT 640.

The HD i5 6600 requires 65 Watts to run and the GeForce GT 640 v3 Zotac 2GB Edition requires 49 Watts. We would recommend a PSU with at least 300 Watts for the HD i5 6600 and a PSU with at least 350 Watts for the GT 640. The HD i5 6600 requires 16 Watts more than the GT 640 to run. The difference is not significant enough for the HD i5 6600 to have a noticeably larger impact on your yearly electricity bills than the GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs1046 MHz
Boost Clock1150 MHzvs-
ArchitectureSkylake GT2-R0Kepler GK208-400-A1
OC Potential None vs Poor
Driver Support Great vs Good
Release Date01 Sep 2015vs29 May 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
6.4
green tick vs -
1600x900
4.9
vs green tick
5.2
1920x1080
3.4
vs green tick
3.9
2560x1440
2.3
vs green tick
2.6
3840x2160
1.6
vs green tick
1.8

GPU Memory

MemoryN/Avs2048 MB
Memory Speed1067 MHzvs1252 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR4vsGDDR5
Memory Bandwidth34.1GB/secvs40.1GB/sec
L2 Cache 1024 KB green tick vs 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units24vs384
Actual Shader Performance11%vs19%
Technology14nmvs28nm
Texture Mapping Units16vs16
Texture Rate5.6 GTexel/svs16.7 GTexel/s
Render Output Units8vs8
Pixel Rate2.8 GPixel/svs8.4 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power65 Wattsvs49 Watts
Recommended PSU300 Watts & 20 Ampsvs350 Watts & 26 Amps

GPU Features

DirectX12.1vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsno
Dedicatednovsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6600 3.3GHzvsIntel Core i3-3220 3.3GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

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

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

GPU
It equips a GPU Codenamed GT2-R0 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.

Memory
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.

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

System Suggestions
Intel HD i5 6600 is best suited for resolutions up to and including 1366x768. We recommend a Decent Processor and 4GB of RAM for Optimal Performance.
Overview
GeForce GT 640 v3 Zotac 2GB Edition is a special edition of NVIDIA's Middle-Class GeForce GT 640 v3, created by Zotac.

Overclock: Central Unit
The Central Unit runs at the same speed.

Overclock: Memory Clock
The Operating Memory Clock and the Frame Buffer remain the same.

Cooling Solution
The Cooling System has been replaced by Zotac's Silent Cooling Solution.

Performance
Without Overclocking Out of The Box, GeForce GT 640 v3 Zotac 2GB Edition is as fast as the reference GeForce GT 640 v3.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-

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