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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 FirePro V5800
Cyberpunk 2077 653% 542%
Hitman 3 880% 735%
Assassins Creed: Valhalla 589% 487%
Resident Evil 8 653% 542%
FIFA 21 280% 224%
Grand Theft Auto VI 960% 803%
Call of Duty: Black Ops Cold War 567% 468%
Genshin Impact 653% 542%
The Medium 840% 701%
Far Cry 6 990% 829%

In terms of overall gaming performance, the graphical capabilities of the AMD FirePro V5800 are very slightly better than the Nvidia GeForce GT 640.

The GeForce GT 640 has a 202 MHz higher core clock speed but 8 fewer Texture Mapping Units than the FirePro V5800. The lower TMU count doesn't matter, though, as altogether the GeForce GT 640 manages to provide 0.9 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 202 MHz higher core clock speed than the FirePro V5800 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 FirePro V5800, 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 FirePro V5800.

The GeForce GT 640 has 1024 MB more video memory than the FirePro V5800, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the FirePro V5800 has superior memory performance.

The FirePro V5800 has 35.5 GB/sec greater memory bandwidth than the GeForce GT 640, which means that the memory performance of the FirePro V5800 is noticeably better than the GeForce GT 640.

The GeForce GT 640 has 384 Shader Processing Units and the FirePro V5800 has 800. However, the actual shader performance of the GeForce GT 640 is 346 and the actual shader performance of the FirePro V5800 is 364. The FirePro V5800 having 18 better shader performance and an altogether better performance when taking into account other relevant data means that the FirePro V5800 delivers a noticeably smoother and more efficient experience when processing graphical data than the GeForce GT 640.

The GeForce GT 640 transistor size technology is 12 nm (nanometers) smaller than the FirePro V5800. This means that the GeForce GT 640 is expected to run slightly cooler and achieve higher clock frequencies than the FirePro V5800.

The GeForce GT 640 requires 65 Watts to run and the FirePro V5800 requires 74 Watts. We would recommend a PSU with at least 350 Watts for the GeForce GT 640 and a PSU with at least 400 Watts for the FirePro V5800. The FirePro V5800 requires 9 Watts more than the GeForce GT 640 to run. The difference is not significant enough for the FirePro V5800 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 XT GL
OC Potential Fair vs Fair
Driver Support Good vs -
Release Date05 Jun 2012vs26 Apr 2010
GPU LinkGD LinkGD Link

Resolution Performance

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

Memory2048 MBvs1024 MB
Memory Speed891 MHzvs1000 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth28.5GB/secvs64GB/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 Units384vs800
Actual Shader Performance17%vs18%
Texture Mapping Units32vs40
Texture Rate28.9 GTexel/svs28 GTexel/s
Render Output Units16vs16
Pixel Rate14.4 GPixel/svs11.2 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections1vs0
DVI Connections1vs1
HDMI Connections1vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power65 Wattsvs74 Watts
Recommended PSU350 Watts & 26 Ampsvs400 Watts & 27 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.5vs4.2
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHz-
Recommended RAM8 GBvs8 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.

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.
FirePro V5800 is a professional graphics card based on the 40nm Terascale 2 architecture.
It's based on the Juniper XT Core (same used on Radeon HD 6770) and therefore offers 800 Shader Processing Units, 40 TMUs and 16 ROPs on a 128-bit interface of fast GDDR5. The central unit is clocked 700MHz while the memory clock operates at 1000MHZ.
Compared to Radeon HD 6770, its central unit is underclocked and overall its gaming performance is even lower than Radeon HD 6770 because the latter benefits from certified gaming drivers which unlock the Terascale's architecture potential while FirePro W5800 is made for professional applications. Therefore, expect its performance to be between 7% and 10% worse than Radeon HD 6770.
Recommended CPU
Possible GPU Upgrades
GPU Variants