Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 v3 Zotac 2GB Edition Radeon R7 250 v2 MSI OC 2GB Edition
Red Dead Redemption 2 529% 456%
Halo: Reach 100% 77%
Cyberpunk 2077 765% 663%
Call of Duty: Modern Warfare 529% 456%
Doom Eternal 441% 378%
Microsoft Flight Simulator 765% 663%
Grand Theft Auto VI 862% 749%
Dragon Ball Z Kakarot 288% 243%
Star Wars: Jedi - Fallen Order 765% 663%
Need For Speed Heat 529% 456%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R7 250 v2 MSI OC 2GB Edition are very slightly better than the Nvidia GeForce GT 640 v3 Zotac 2GB Edition.

The R7 250 has a 4 MHz higher core clock speed and 8 more Texture Mapping Units than the GT 640. This results in the R7 250 providing 8.5 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 R7 250 has a 4 MHz higher core clock speed than the GT 640, but both GPUs exhibit the same Pixel Fill Rate. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The R7 250 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 GeForce GT 640 v3 Zotac 2GB Edition and the Radeon R7 250 v2 MSI OC 2GB Edition have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GT 640 has 11.3 GB/sec greater memory bandwidth than the R7 250, which means that the memory performance of the GT 640 is slightly better than the R7 250.

Both the GeForce GT 640 v3 Zotac 2GB Edition and the Radeon R7 250 v2 MSI OC 2GB Edition have 384 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the GT 640 is 402 and by the R7 250 is 359. Knowing that the shader performance of the GT 640 is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The GeForce GT 640 v3 Zotac 2GB Edition requires 49 Watts to run and the Radeon R7 250 v2 MSI OC 2GB Edition requires 65 Watts. We would recommend a PSU with at least 350 Watts for the GT 640 and a PSU with at least 400 Watts for the R7 250. The R7 250 requires 16 Watts more than the GT 640 to run. The difference is not significant enough for the R7 250 to have a noticeably larger impact on your yearly electricity bills than the GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1046 MHzvs1050 MHz
Boost Clock-vs1100 MHz
ArchitectureKepler GK208-400-A1GCN 1.1 Oland XT
OC Potential Poor vs Poor
Driver Support Good vs Great
Release Date29 May 2013vs11 Oct 2013
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
vs green tick
vs green tick
vs green tick
green tick vs green tick

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1252 MHzvs900 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth40.1GB/secvs28.8GB/sec
L2 Cache 128 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units384vs384
Actual Shader Performance19%vs17%
Texture Mapping Units16vs24
Texture Rate16.7 GTexel/svs25.2 GTexel/s
Render Output Units8vs8
Pixel Rate8.4 GPixel/svs8.4 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power49 Wattsvs65 Watts
Recommended PSU350 Watts & 26 Ampsvs400 Watts & 18 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Core i3-4130 3.4GHz
Recommended RAM8 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
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.

Without Overclocking Out of The Box, GeForce GT 640 v3 Zotac 2GB Edition is as fast as the reference GeForce GT 640 v3.
Radeon R7 250 v2 MSI OC 2GB Edition is a special edition of the middle-class Radeon R7 250 v2 2GB.

This edition comes overclocked out of the box in the central unit which went from 1000MHz to 1050Hz, whereas the Boost Clock is not of 1100MHz. The memory clock was left untouched.

Benchmarks indicate a 3% performance boost over the reference card.
Recommended CPU
Possible GPU Upgrades
GPU Variants