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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 Quadro CX
Cyberpunk 2077 653% 694%
Hitman 3 880% 932%
Assassins Creed: Valhalla 589% 626%
Resident Evil 8 653% 694%
FIFA 21 280% 300%
Grand Theft Auto VI 960% 1017%
Call of Duty: Black Ops Cold War 567% 602%
Genshin Impact 653% 694%
The Medium 840% 890%
Far Cry 6 990% 1048%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 are very slightly better than the Nvidia Quadro CX.

The GeForce GT 640 was released over three years more recently than the Quadro CX, and so the GeForce GT 640 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Quadro CX when running the latest games.

The GeForce GT 640 has 512 MB more video memory than the Quadro CX, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The Quadro CX has 48.3 GB/sec greater memory bandwidth than the GeForce GT 640, which means that the memory performance of the Quadro CX is noticeably better than the GeForce GT 640.

The GeForce GT 640 has 384 Shader Processing Units and the Quadro CX has 192. However, the actual shader performance of the GeForce GT 640 is 346 and the actual shader performance of the Quadro CX is 116. The GeForce GT 640 having 230 better shader performance is not particularly notable, as altogether the Quadro CX performs better when taking into account other relevant data.

The GeForce GT 640 requires 65 Watts to run and the Quadro CX requires 150 Watts. We would recommend a PSU with at least 350 Watts for the GeForce GT 640 and a PSU with at least 750 Watts for the Quadro CX. The Quadro CX requires 85 Watts more than the GeForce GT 640 to run. The difference is significant enough that the Quadro CX may have an adverse affect on your yearly electricity bills in comparison to the GeForce GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed902 MHzvs602 MHz
Boost Clock-vs-
ArchitectureKepler GK107-300-A2D10U-20
OC Potential Fair vs -
Driver Support Good vs -
Release Date05 Jun 2012vs30 Oct 2008
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
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green tick vs -
green tick vs -
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GPU Memory

Memory2048 MBvs1536 MB
Memory Speed891 MHzvs800 MHz
Memory Bus128 Bitvs384 Bit
Memory TypeDDR3vsGDDR3
Memory Bandwidth28.5GB/secvs76.8GB/sec
L2 Cache 256 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units384vs192
Actual Shader Performance17%vs6%
Texture Mapping Units32vs-
Texture Rate28.9 GTexel/svs-
Render Output Units16vs-
Pixel Rate14.4 GPixel/svs-

GPU Outputs

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

GPU Power Requirements

Max Power65 Wattsvs150 Watts
Recommended PSU350 Watts & 26 Ampsvs750 Watts

GPU Features

Shader Model5.0vs4.0
Open GL4.5vs3.0
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHz-
Recommended RAM8 GB-
Maximum Recommended Gaming Resolution1366x768-

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.

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.

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.

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.

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.

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 NVIDIA Quadro CX is the accelerator for Adobe Creative Suite 4ógiving creative professionals the performance, tools, and reliability they need to maximize their creativity.
Recommended CPU
Possible GPU Upgrades
GPU Variants