Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Intel UHD Graphics 630 GeForce GT 640 v3 Zotac 1GB Edition
Cyberpunk 2077 874% 765%
Call of Duty Warzone 609% 529%
Minecraft: Dungeons 648% 565%
Valorant 30% 38%
Grand Theft Auto VI 983% 862%
Assassins Creed: Valhalla 874% 765%
Doom Eternal 622% 541%
Maneater 509% 441%
Mount and Blade 2: Bannerlord 582% 506%
Microsoft Flight Simulator 562% 488%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 v3 Zotac 1GB Edition are very slightly better than the Intel UHD Graphics 630.

The GT 640 has a 696 MHz higher core clock speed but 7 fewer Texture Mapping Units than the UHD Graphics 630. The lower TMU count doesn't matter, though, as altogether the GT 640 manages to provide 8.6 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 and 5 more Render Output Units than the UHD Graphics 630. This results in the GT 640 providing 7.3 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 UHD Graphics 630 was released over three years more recently than the GT 640, and so the UHD Graphics 630 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GT 640 when running the latest games.

The GT 640 has 1024 MB video memory, but the UHD Graphics 630 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The UHD Graphics 630 has 184 Shader Processing Units and the GeForce GT 640 v3 Zotac 1GB Edition has 384. However, the actual shader performance of the UHD Graphics 630 is 212 and the actual shader performance of the GT 640 is 402. The GT 640 having 190 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 UHD Graphics 630.

The UHD Graphics 630 transistor size technology is 14 nm (nanometers) smaller than the GT 640. This means that the UHD Graphics 630 is expected to run slightly cooler and achieve higher clock frequencies than the GT 640. While they exhibit similar graphical performance, the UHD Graphics 630 should consume less power than the GT 640.

The UHD Graphics 630 requires 15 Watts to run and the GeForce GT 640 v3 Zotac 1GB Edition requires 49 Watts. We would recommend a PSU with at least 350 Watts for the GT 640, but we do not have a recommended PSU wattage for the UHD Graphics 630. The GT 640 requires 34 Watts more than the UHD Graphics 630 to run. The difference is significant enough that the GT 640 may have a slight adverse affect on your yearly electricity bills in comparison to the UHD Graphics 630.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs1046 MHz
Boost Clock1150 MHzvs-
ArchitectureGeneration 9.5Kepler GK208-400-A1
OC Potential - vs Poor
Driver Support - vs Good
Release Date01 Sep 2017vs29 May 2013
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
vs green tick
vs green tick
vs green tick
vs green tick

GPU Memory

MemoryN/Avs1024 MB
Memory Speed-vs1252 MHz
Memory Bus-vs64 Bit
Memory Type-vsGDDR5
Memory Bandwidth-vs40.1GB/sec
L2 Cache 0 KB vs green tick 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units184vs384
Actual Shader Performance10%vs19%
Texture Mapping Units23vs16
Texture Rate8.1 GTexel/svs16.7 GTexel/s
Render Output Units3vs8
Pixel Rate1.1 GPixel/svs8.4 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)-vs4096x2160
VGA Connections0vs1
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections0vs-

GPU Power Requirements

Max Power15 Wattsvs49 Watts
Recommended PSU-350 Watts & 26 Amps

GPU Features

Shader Model6.4vs5.0
Open GL4.6vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended Processor-Intel Core i3-3220 3.3GHz
Recommended RAM-8 GB
Maximum Recommended Gaming Resolution-1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview Intel UHD Graphics 630 are Integrated Graphics in some of Intel's Coffee Lake Processors. Architecture The Coffee Lake Architecture succeeds the Kaby Lake Architecture and aims for increased CPU and Graphics Performance, within the same Power Requirements. It includes support for DirectX 12.1, OpenCL 2.1 and OpenGL 4.6, as well as DDR4 Memory Support. GPU The central unit initially runs at 300MHz and goes up to 1150MHz in Turbo Mode. The GPU Codenamed GT2 offers 184 Shader Processing Units, 23 TMUs and 3 ROPs Memory Speed The operating memory clock depends on which speed the System's RAM is running and which memory type is installed and is ultimately limited by the highest operating speed that the processor supports. Depending on whether or not the System's RAM is Dual-Channeled, it can access either a 64-bit or 128-bit Memory Interface. Memory Frame Buffer The GPU Shares the System's RAM which varies according to the System. The GPU may reserve up to 1.7GB.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 Remains the same and 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 has been replaced by Zotac's Silent Cooling Solution.

Without Overclocking Out of The Box, GeForce GT 640 v3 Zotac 1GB Edition is as fast as the reference GeForce GT 640 v3.
Recommended CPU
Possible GPU Upgrades
GPU Variants