Gaming Performance Comparison
In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 770M SLI are massively better than the Nvidia GeForce 940MX 2GB.
The GeForce 940MX 2GB has a 311 MHz higher core clock speed than the GTX 770M, but the GTX 770M has 136 more Texture Mapping Units than the GeForce 940MX 2GB. As a result, the GTX 770M exhibits a 102.9 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 311 MHz higher core clock speed than the GTX 770M, but the GTX 770M has 40 more Render Output Units than the GeForce 940MX 2GB. As a result, the GTX 770M exhibits a 29.9 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 a year more recently than the GTX 770M, and so the GeForce 940MX 2GB is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 770M.
The GTX 770M has 2048 MB more video memory than the GeForce 940MX 2GB, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 770M also has superior memory performance overall.
The GTX 770M has 176 GB/sec greater memory bandwidth than the GeForce 940MX 2GB, which means that the memory performance of the GTX 770M is massively better than the GeForce 940MX 2GB.
The GeForce 940MX 2GB has 384 Shader Processing Units and the GeForce GTX 770M SLI has 1920. However, the actual shader performance of the GeForce 940MX 2GB is 644 and the actual shader performance of the GTX 770M is 1557. The GTX 770M having 913 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 770M delivers a massively smoother and more efficient experience when processing graphical data than the GeForce 940MX 2GB.
The GeForce 940MX 2GB requires 25 Watts to run and the GeForce GTX 770M SLI requires 150 Watts. The GTX 770M requires 125 Watts more than the GeForce 940MX 2GB to run. The difference is significant enough that the GTX 770M may have an adverse affect on your yearly electricity bills in comparison to the GeForce 940MX 2GB.
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| Mini Review | Overview
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. | | | | GeForce GTX 770M SLI is a combination of 2 GeForce GTX 770M put together using NVIDIA's SLI technology.
Together, this combination offers 1920 Shader Processing Units, 160 TMUs and 48 ROPs. This, on a 192-bit memory interface, per card, of fast GDDR5. While the central unit runs at 811MHz and goes up to XXXMHz, in Turbo Mode, the memory clock operates at 1000MHz.
Best case scenario, this combination is expected to perform better a single GeForce GTX 780M and deliver similar performance to a desktop GeForce GTX 680 but ultimately, its performance depends on the driver support and on the 3D application.
Therefore, and paired with a powerful processor, all demanding games should be playable at the highest settings. Still, this combination might surpass the 150W barrier of TDP and therefore require more power than a single GeForce GTX 780M, though delivering better performance. |
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