Select any two GPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game GeForce 940MX 2GB GeForce GT 650M Mac 1GB Edition
Cyberpunk 2077 495% 465%
Hitman 3 674% 635%
Assassins Creed: Valhalla 444% 417%
Call of Duty: Black Ops Cold War 426% 400%
FIFA 21 200% 185%
Grand Theft Auto VI 737% 695%
Far Cry 6 761% 718%
Genshin Impact 495% 465%
Battlefield 6 674% 635%
Resident Evil 8 495% 465%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 650M Mac 1GB Edition are marginally better than the Nvidia GeForce 940MX 2GB.

The GeForce 940MX 2GB has a 222 MHz higher core clock speed than the GT 650M, but the GT 650M has 8 more Texture Mapping Units than the GeForce 940MX 2GB. As a result, the GT 650M exhibits a 1.9 GTexel/s better Texture Fill Rate than the GeForce 940MX 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 940MX 2GB has a 222 MHz higher core clock speed than the GT 650M, but the GT 650M has 8 more Render Output Units than the GeForce 940MX 2GB. As a result, the GT 650M exhibits a 5.4 GPixel/s better Pixel Fill Rate than the GeForce 940MX 2GB. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce 940MX 2GB was released over three years more recently than the GT 650M, and so the GeForce 940MX 2GB is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GT 650M when running the latest games.

The GeForce 940MX 2GB has 1024 MB more video memory than the GT 650M, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the GT 650M has superior memory performance.

The GT 650M has 64.3 GB/sec greater memory bandwidth than the GeForce 940MX 2GB, which means that the memory performance of the GT 650M is much better than the GeForce 940MX 2GB.

Both the GeForce 940MX 2GB and the GeForce GT 650M Mac 1GB Edition have 384 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the GeForce 940MX 2GB is 644 and by the GT 650M is 346. Knowing that the shader performance of the GeForce 940MX 2GB is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The GeForce 940MX 2GB requires 25 Watts to run and the GeForce GT 650M Mac 1GB Edition requires 45 Watts. The GT 650M requires 20 Watts more than the GeForce 940MX 2GB to run. The difference is not significant enough for the GT 650M to have a noticeably larger impact on your yearly electricity bills than the GeForce 940MX 2GB.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1122 MHzvs900 MHz
Boost Clock1242 MHzvs-
ArchitectureMaxwell GM108-N16S-GTRKepler GK107-N13P-GT-W-A2
OC Potential Poor vs Poor
Driver Support Great vs Good
Release Date01 Mar 2016vs12 Jul 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.4
vs green tick
7.7
1600x900
5.7
vs green tick
5.8
1920x1080
4.2
vs green tick
4.4
2560x1440
2.8
green tick vs green tick
2.8
3840x2160
1.9
green tick vs green tick
1.9

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1001 MHzvs1254 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth16GB/secvs80.3GB/sec
L2 Cache 2048 KB green tick vs 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs384
Actual Shader Performance31%vs17%
Technology28nmvs28nm
Texture Mapping Units24vs32
Texture Rate26.9 GTexel/svs28.8 GTexel/s
Render Output Units8vs16
Pixel Rate9 GPixel/svs14.4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs0
Comparison

GPU Power Requirements

Max Power25 Wattsvs45 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-6300HQ 2.3GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce 940MX 2GB is a Middle-Class Mobile Graphics Card based on the Maxwell Architecture.

Architecture
GeForce 940MX 2GB Features a GPU Codenamed GM108-N16S-GTR which is a First Gen Maxwell GPU and is identical to the GM108-N16S-GT-S used on GeForce 940M but with the addition of GDDR5 Support.
GM108-N16S-GTR has 3 Compute Units Unlocked and thus offers 384 Shader Processing Units, 24 TMUs and 8 ROPs.

GPU
The Central Unit is Clocked at 1122Hz and goes up to 1242MHz, in Turbo Mode.

Memory: Speed
The GPU is equipped with DDR3 and Accesses the Frame Buffer through a 64-bit Memory Interface. The Memory Clock Operates at 1001MHz.

Memory: Frame Buffer
The GPU can fill up a Memory Pool of up to 2GB.

Power Consumption
With a rated board TDP of 25W, it is suited for small and medium sized laptops.

Performance
Equipped with DDR3, GeForce GT 940MX is only slightly faster than GeForce GT 940M.

System Suggestions
GeForce 940MX 2GB is best suited for resolutions up to and including 1366x768. We Recommend a Middle-Class Processor and 8GB of RAM for Optimal Performance.
Overview
GeForce GT 650M Mac 1GB Edition is a Fast-Middle-Class Mobile 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 which has 2 Stream Multiprocessors activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is clocked at 900MHz.

Memory
The GPU accesses a 1GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1254MHz.

Power Consumption
With a rated board TDP of 45W, it is suited for average sized laptops.

Performance
Gaming benchmarks indicate its performance is similar to GeForce GTX 660M.

System Suggestions
We recommend a decent processor and 8GB of RAM for a system with GeForce GT 650M Mac 1GB Edition.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-