Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 GeForce GT 440 Gainward 1GB Edition
Hitman 3 880% 1236%
Cyberpunk 2077 653% 927%
Assassins Creed: Valhalla 589% 840%
Resident Evil 8 653% 927%
FIFA 21 280% 418%
Grand Theft Auto VI 960% 1345%
Call of Duty: Black Ops Cold War 567% 809%
Genshin Impact 653% 927%
Far Cry 6 990% 1386%
The Medium 840% 1182%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 are significantly better than the Nvidia GeForce GT 440 Gainward 1GB Edition.

The GeForce GT 640 has a 92 MHz higher core clock speed and 16 more Texture Mapping Units than the GT 440. This results in the GeForce GT 640 providing 15.9 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 92 MHz higher core clock speed and 12 more Render Output Units than the GT 440. This results in the GeForce GT 640 providing 11.2 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 GT 440, 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 GT 440.

The GeForce GT 640 has 1024 MB more video memory than the GT 440, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The GT 440 has 22.7 GB/sec greater memory bandwidth than the GeForce GT 640, which means that the memory performance of the GT 440 is slightly better than the GeForce GT 640.

The GeForce GT 640 has 384 Shader Processing Units and the GeForce GT 440 Gainward 1GB Edition has 96. However, the actual shader performance of the GeForce GT 640 is 346 and the actual shader performance of the GT 440 is 156. The GeForce GT 640 having 190 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GT 640 delivers a marginally smoother and more efficient experience when processing graphical data than the GT 440.

The GeForce GT 640 transistor size technology is 12 nm (nanometers) smaller than the GT 440. This means that the GeForce GT 640 is expected to run slightly cooler and achieve higher clock frequencies than the GT 440.

The GeForce GT 640 requires 65 Watts to run and the GeForce GT 440 Gainward 1GB Edition requires 65 Watts. We would recommend a PSU with at least 350 Watts for the GeForce GT 640 and a PSU with at least 300 Watts for the GT 440. The two GPUs require the same amount of wattage to run. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed902 MHzvs810 MHz
Boost Clock-vs-
ArchitectureKepler GK107-300-A2Fermi GF108-400-A1
OC Potential Fair vs Poor
Driver Support Good vs Poor
Release Date05 Jun 2012vs01 Feb 2011
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
6.6
green tick vs -
1600x900
5.1
green tick vs
4.3
1920x1080
3.5
green tick vs
2.8
2560x1440
2.5
green tick vs
2
3840x2160
1.7
green tick vs -

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed891 MHzvs800 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth28.5GB/secvs51.2GB/sec
L2 Cache 256 KB green tick vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs96
Actual Shader Performance17%vs8%
Technology28nmvs40nm
Texture Mapping Units32vs16
Texture Rate28.9 GTexel/svs13 GTexel/s
Render Output Units16vs4
Pixel Rate14.4 GPixel/svs3.2 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power65 Wattsvs65 Watts
Recommended PSU350 Watts & 26 Ampsvs300 Watts & 20 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Celeron G530 2.4GHz
Recommended RAM8 GBvs4 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.
Overview
GeForce GT 440 Gainward 1GB Edition is a special edition of NVIDIA's middle-class GeForce GT 440, created by Gainward.

Overclock Out of The Box
The Clock Frequencies of both Central Unit and Operating Memory Clock Remain the Same.

Cooling Solution
The Cooling System remains the same.

Performance
Without Overclocking Out of The Box, GeForce GT 440 Gainward 1GB Edition is as fast as the reference GeForce GT 440.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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