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Gaming Performance Comparison

Recommended System Requirements
Game Quadro K3100M GeForce 840M 2GB
Cyberpunk 2077 344% 559%
Assassins Creed: Valhalla 309% 508%
Watch Dogs Legion 332% 541%
Genshin Impact 348% 565%
FIFA 21 126% 235%
Call of Duty: Black Ops Cold War 356% 576%
eFootball PES 2021 126% 235%
Microsoft Flight Simulator 296% 488%
Marvel's Avengers 324% 529%
Mafia: Definitive Edition 542% 853%

In terms of overall gaming performance, the graphical capabilities of the Nvidia Quadro K3100M are significantly better than the Nvidia GeForce 840M 2GB.

The GeForce 840M 2GB has a 323 MHz higher core clock speed than the Quadro K3100M, but the Quadro K3100M has 40 more Texture Mapping Units than the GeForce 840M 2GB. As a result, the Quadro K3100M exhibits a 20.5 GTexel/s better Texture Fill Rate than the GeForce 840M 2GB. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce 840M 2GB has a 323 MHz higher core clock speed than the Quadro K3100M, but the Quadro K3100M has 24 more Render Output Units than the GeForce 840M 2GB. As a result, the Quadro K3100M exhibits a 14.4 GPixel/s better Pixel Fill Rate than the GeForce 840M 2GB. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce 840M 2GB was released less than a year after the Quadro K3100M, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Quadro K3100M has 2048 MB more video memory than the GeForce 840M 2GB, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Quadro K3100M also has superior memory performance overall.

The Quadro K3100M has 86.4 GB/sec greater memory bandwidth than the GeForce 840M 2GB, which means that the memory performance of the Quadro K3100M is much better than the GeForce 840M 2GB.

The Quadro K3100M has 768 Shader Processing Units and the GeForce 840M 2GB has 384. However, the actual shader performance of the Quadro K3100M is 542 and the actual shader performance of the GeForce 840M 2GB is 583. The GeForce 840M 2GB having 41 better shader performance is not particularly notable, as altogether the Quadro K3100M performs better when taking into account other relevant data.

The Quadro K3100M requires 75 Watts to run and the GeForce 840M 2GB requires 33 Watts. The Quadro K3100M requires 42 Watts more than the GeForce 840M 2GB to run. The difference is significant enough that the Quadro K3100M may have a slight adverse affect on your yearly electricity bills in comparison to the GeForce 840M 2GB.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed706 MHzvs1029 MHz
Boost Clock-vs1124 MHz
ArchitectureKepler GK104Maxwell GM108
OC Potential Fair vs Poor
Driver Support Good vs Great
Release Date23 Jul 2013vs12 Mar 2014
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
1920x1080 - vs green tick
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed800 MHzvs1001 MHz
Memory Bus256 Bitvs64 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth102.4GB/secvs16GB/sec
L2 Cache 512 KB vs green tick 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units768vs384
Actual Shader Performance26%vs28%
Texture Mapping Units64vs24
Texture Rate45.2 GTexel/svs24.7 GTexel/s
Render Output Units32vs8
Pixel Rate22.6 GPixel/svs8.2 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power75 Wattsvs33 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended Processor-Intel Core i3-4100M 2.5GHz
Recommended RAM-4 GB
Maximum Recommended Gaming Resolution-1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewQuadro K3100M is a high-end business card based on the 28nm, Kepler architecture.
Technically the successor to the previous Quadro 3000M, it's based on the Kepler GK104 (despite the SPU count) and offers 768 Shader Processing Units, 64 TMUs and 32 ROPs, on a 256-bit memory interface of fast GDDR5. The central unit runs at 706MHz and the memory clock operates at up to 800MHz.
Quadro K3000M's drivers are certified for professional applications only. Its gaming performance is comparable to GeForce GTX 760M.
GeForce 840M 2GB is a Middle-Class Mobile Graphics Card based on the First Revision of the Maxwell architecture.

The Maxwell architecture features many improvements and among them is the extremely large L2 Cache which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.

It equips a GPU codenamed GM108 which has 3 SM activated and thus offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. The central unit runs at 1029MHz and goes up to 1124MHz, in Turbo Mode.

The GPU accesses a 2GB frame buffer of DDR3, through a 64-bit memory interface. The Frame Buffer is exaggerated and in no way benefits the GPU. The memory clock operates at 1001MHz.

DirectX 11.2 Support (11.0 Hardware Default) and support for GPU Boost 2.0, GeForce Experience, PhysX and other technologies.

Power Consumption
With a rated board TDP of 33W, it will only be equipped in average sized notebooks.

Benchmarks indicate its performance is over 20% faster than the older GeForce GT 740M. Therefore, it should match GeForce GT 750M.

System Suggestions
We recommend a modest processor (Intel Core i5 Mobile) and 4GB of RAM for a notebook with GeForce 840M 2GB.
Recommended CPU
Possible GPU Upgrades
GPU Variants