GT 940MX DDR3 Benchmarks and Info

GT 940MX DDR3 Specs
ModelGT 940MX DDR3 (Maxwell I)
CoreGM108, 384 cores @ 1.083GHZ - 1.189GHZ
VRAM2GB/4GB DDR3 @ 0.9GHZ (1.8GHZ eff.), 64-bit.
GFLOPS (w/Boost)913 (FP32)
Memory bandwidth16 GB/s
TMUs24
ROPs16
Power~30W

The GT 940MX DDR3 is a low tier GPU based on the Maxwell I GM108 core, a renamed and a bit overclocked GT 940M. The 940MX and 940M are based on the previous generation GT 840M with the same GM108 core and performance is around the same. Released in 2016, it has been in use even after the 1000 series was released, somewhat overusing the old Maxwell I architecture and while the much newer and power efficient Maxwell II and Pascal architectures were available.

The newer Nvidia MX150 is at least 50% faster and often is twice as fast for gaming, so a GT 940M and even the 940MX GDDR5 version competitiveness is low compared to a $450-$500 MX150 based laptop.

As for gaming performance, the GT 940MX DDR3 / 940M / 840M are able to run many games well enough at medium settings@768p, and some well optimized or less demanding games at 1080p (Fortnite, World of Tanks). The newer Nvidia MX150 is 50-100% faster more or less, even compared to the GDDR5 version, so a GT 940M and even the 940MX GDDR5 version competitiveness is low compared to a $450-$500 MX150 based laptop.

The GT 940MX is an incarnation of the GT 840M/940M and is incarnated into the MX130 which is still in use in 2018, but offers nothing more really.

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At this point, it would be better to look for other GPUs, even for low priced machines. Laptop with the Nvidia MX150 GPU or the AMD 2500U CPU (with Vega 8 based iGPU) will be much preferable.

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