Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 Radeon HD 5750 1024MB
Cyberpunk 2077 653% 559%
Assassins Creed: Valhalla 589% 503%
Call of Duty: Black Ops Cold War 567% 483%
FIFA 21 280% 232%
Grand Theft Auto VI 960% 827%
Hitman 3 880% 757%
Genshin Impact 653% 559%
Far Cry 6 990% 853%
World of Warcraft: Shadowlands 980% 845%
Watch Dogs Legion 627% 536%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 5750 1024MB are very slightly better than the Nvidia GeForce GT 640.

The GeForce GT 640 has a 202 MHz higher core clock speed but 4 fewer Texture Mapping Units than the HD 5750. The lower TMU count doesn't matter, though, as altogether the GeForce GT 640 manages to provide 3.7 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 GeForce GT 640 has a 202 MHz higher core clock speed than the HD 5750 and the same number of Render Output Units. This results in the GeForce GT 640 providing 3.2 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 GeForce GT 640 was released over a year more recently than the HD 5750, and so the GeForce GT 640 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 5750.

The GeForce GT 640 has 1024 MB more video memory than the HD 5750, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the HD 5750 has superior memory performance.

The HD 5750 has 45.1 GB/sec greater memory bandwidth than the GeForce GT 640, which means that the memory performance of the HD 5750 is noticeably better than the GeForce GT 640.

The GeForce GT 640 has 384 Shader Processing Units and the Radeon HD 5750 1024MB has 720. However, the actual shader performance of the GeForce GT 640 is 346 and the actual shader performance of the HD 5750 is 328. The GeForce GT 640 having 18 better shader performance is not particularly notable, as altogether the HD 5750 performs better when taking into account other relevant data.

The GeForce GT 640 transistor size technology is 12 nm (nanometers) smaller than the HD 5750. This means that the GeForce GT 640 is expected to run slightly cooler and achieve higher clock frequencies than the HD 5750.

The GeForce GT 640 requires 65 Watts to run and the Radeon HD 5750 1024MB requires 86 Watts. We would recommend a PSU with at least 350 Watts for the GeForce GT 640 and a PSU with at least 450 Watts for the HD 5750. The HD 5750 requires 21 Watts more than the GeForce GT 640 to run. The difference is not significant enough for the HD 5750 to have a noticeably larger impact on your yearly electricity bills than the GeForce GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed902 MHzvs700 MHz
Boost Clock-vs-
ArchitectureKepler GK107-300-A2Evergreen Juniper PRO
OC Potential Fair vs Fair
Driver Support Good vs -
Release Date05 Jun 2012vs01 Oct 2009
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
6.6
green tick vs -
1600x900
5.1
green tick vs -
1920x1080
3.5
green tick vs -
2560x1440
2.5
green tick vs -
3840x2160
1.7
green tick vs -

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed891 MHzvs1150 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth28.5GB/secvs73.6GB/sec
L2 Cache 256 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs720
Actual Shader Performance17%vs16%
Technology28nmvs40nm
Texture Mapping Units32vs36
Texture Rate28.9 GTexel/svs25.2 GTexel/s
Render Output Units16vs16
Pixel Rate14.4 GPixel/svs11.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power65 Wattsvs86 Watts
Recommended PSU350 Watts & 26 Ampsvs450 Watts & 30 Amps

GPU Features

DirectX12.0vs11
Shader Model5.0vs5.0
Open GL4.5vs3.2
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Pentium Dual Core E6600 3.06GHz
Recommended RAM8 GBvs6 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GT 640 is a Middle-Class Graphics Card based on the first revision of the Kepler Architecture.

Architecture
The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

GPU
It equips a GPU Codenamed GK107-300-A2 which has 2 Stream Multiprocessor activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is clocked at 902MHz.

Memory
The GPU accesses a 2GB frame buffer of DDR3, through a 128-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 891MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for Optimus, CUDA, OpenCL, DirectCompute, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 65W, it requires at least a 350W PSU and it relies entirely on the PCI Slot for power, meaning no extra connectors are required.

Performance
Gaming benchmarks put its performance on average with Radeon HD 6670.

System Suggestions
We recommend a Modest Processor (Intel Core i3) and 8GB of RAM for a system with GeForce GT 640.
The Evergreen series is a family of GPUs developed by AMD graphics products division. The existence was spotted on a presentation slide from AMD Technology Analyst Day July 2007 as 'R8xx'. ATI held a press event in the USS Hornet museum on September 10, 2009 and announced ATI Eyefinity multi-display technology and specifications of the Radeon HD 5800 series' variants. The first variants of the Radeon HD 5800 series were launched September 23, 2009, with the HD 5700 series launching October 12 and HD 5970 launching on November 18 The HD 5670, was launched on January 14, 2010, and the HD 5500 and 5400 series were launched in February of 2010, completing what has appeared to be most of ATI's Evergreen GPU lineup.
Demand so greatly outweighed supply that more than two months after launch, many online retailers were still having trouble keeping the 5800 and 5900 series in stock.
Recommended CPU
Possible GPU Upgrades
GPU Variants