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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 Quadro 2000D
Cyberpunk 2077 653% 669%
Assassins Creed: Valhalla 589% 603%
Call of Duty: Black Ops Cold War 567% 580%
Grand Theft Auto VI 960% 982%
FIFA 21 280% 288%
Genshin Impact 653% 669%
Far Cry 6 990% 1012%
Hitman 3 880% 900%
Watch Dogs Legion 627% 641%
World of Warcraft: Shadowlands 980% 1002%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 are marginally better than the Nvidia Quadro 2000D.

The GeForce GT 640 has a 277 MHz higher core clock speed and the same number of Texture Mapping Units as the Quadro 2000D. This results in the GeForce GT 640 providing 8.9 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 277 MHz higher core clock speed than the Quadro 2000D and the same number of Render Output Units. This results in the GeForce GT 640 providing 4.4 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 less than a year after the Quadro 2000D, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GT 640 has 1024 MB more video memory than the Quadro 2000D, 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 2000D has 13.1 GB/sec greater memory bandwidth than the GeForce GT 640, which means that the memory performance of the Quadro 2000D is slightly better than the GeForce GT 640.

The GeForce GT 640 has 384 Shader Processing Units and the Quadro 2000D has 192. However, the actual shader performance of the GeForce GT 640 is 346 and the actual shader performance of the Quadro 2000D is 240. The GeForce GT 640 having 106 better shader performance is not particularly notable, as altogether the Quadro 2000D performs better when taking into account other relevant data.

The GeForce GT 640 transistor size technology is 12 nm (nanometers) smaller than the Quadro 2000D. This means that the GeForce GT 640 is expected to run slightly cooler and achieve higher clock frequencies than the Quadro 2000D. While they exhibit similar graphical performance, the GeForce GT 640 should consume less power than the Quadro 2000D.

The GeForce GT 640 requires 65 Watts to run and the Quadro 2000D requires 62 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 Quadro 2000D. The GeForce GT 640 requires 3 Watts more than the Quadro 2000D to run. The difference is not significant enough for the GeForce GT 640 to have a noticeably larger impact on your yearly electricity bills than the Quadro 2000D.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed902 MHzvs625 MHz
Boost Clock-vs-
ArchitectureKepler GK107-300-A2Fermi GF106-875-A1
OC Potential Fair vs Fair
Driver Support Good vs Poor
Release Date05 Jun 2012vs05 Oct 2011
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 MHzvs650 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth28.5GB/secvs41.6GB/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 Units384vs192
Actual Shader Performance17%vs12%
Technology28nmvs40nm
Texture Mapping Units32vs32
Texture Rate28.9 GTexel/svs20 GTexel/s
Render Output Units16vs16
Pixel Rate14.4 GPixel/svs10 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power65 Wattsvs62 Watts
Recommended PSU350 Watts & 26 Ampsvs450 Watts & 30 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Core i3-2100 3.1GHz
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.
Quadro 2000D is a middle-class professional card based on the 40nm, Fermi architecture.

It's based on the Fermi GF106-875-A1 GPU and thus offers 192 Shader Processing Units, 32 TMUs and 16 ROPs, on a 128-bit memory interface of fast GDDR5. The central unit runs at 625MHz and the memory clock operates at up to 650MHz. It has a L2 Cache of 256KB and a rated board TDP of 62 Watts.

Despite exhibiting similarities to GeForce GTS 450, due to being under-clocked and because Quadro 2000D's drivers are only certified for professional applications only, its gaming performance is up to 20% slower than GeForce GTS 450.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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