NVIDIA GeForce MX570 vs NVIDIA GeForce MX450 vs NVIDIA GeForce MX550

NVIDIA GeForce MX570

The Nvidia GeForce MX570 or MX570 A (GN20-S5, Device ID 0x25A6) is an entry-level mobile graphics card for laptops. It is based on the Ampere GA107 chip with 2 GB GDDR6. Compared to the similar GeForce RTX 2050, the MX570 offers 2 GB less VRAM and a lower TDP. Compared to the RTX 3050, the MX570 and RTX 2050 offer a greatly reduced memory bus of only 64 Bit. In theory the MX570 also offers Raytracing and Tensor cores, but the performance for Raytracing will be too low. DLSS however could help in selected games.

The gaming performance of the mobile GeForce MX570 is often clearly restricted by the small amount of VRAM. E.g. Indiana Jones and the Great Circle did not even start due to not enough video memory. Other games see big drop offs in performance when increasing detail settings (even compared to modern iGPUs). Therefore, only older games or low demanding games (like Counter-Strike 2) can be played with high quality mode.

The GA107 chip is manufactured on an 8nm process. The raytracing cores are not usable in the MX570.

NVIDIA GeForce MX450

The Nvidia GeForce MX450 (N18S-G5, N18S-G5-B, N18S-LP codename) is a dedicated entry-level mobile graphics card for laptops. It uses the same TU117 chip as the GeForce GTX 1650 but with a reduced memory bus of 64 Bit. Furthermore, the MX450 is the first mobile GPU with PCIe Gen 4 x4 support. 

Currently four different versions are available with different specifications and performance:

N18S-G5-B: GBD-128 Package, 1395 - 1575 MHz, GDDR6 5001 MHz, 28.5 W
N18S-G5: GB2E-64 Package, 1395 - 1575 MHz, GDDR6 5001 MHz, 25 W
N18S-G5: GB2E-64 Package, 1395 - 1575 MHz, GDDR5 3501 MHz, 25 W
N18S-LP: GB2E-64 Package, 720 - 930 MHz, GDDR6 5001 MHz, 12 W

Especially the LP = Low Power variant is significantly slower than the typical 25 Watt variant.

The 25 Watt GDDR6 N18S-G5 should be up to 20% faster than a GeForce GTX 1050 but of course below a GTX 1650 (Max-Q). Therefore, demanding games like Horizon Zero Dawn should run lowest settings. Less demanding games like F1 2020 can be played in medium to high settings and full HD.

The TU117 chip is manufactured in 12nm at TSMC and thanks to the relatively low power consumption (TGP specified between 12 and 28.5 W) the dGPU is also suited for thin and light laptops. Mostly it is intended as an additional graphics card for Tiger Lake-U based laptops.

NVIDIA GeForce MX550

The Nvidia GeForce MX550 (GN18-S5-A1, TU117-670-A1 Chip) is an entry-level mobile graphics card for laptops. It is based on the old Turing TU117 chip (as the older MX450) and uses a 64 Bit memory bus with GDDR6 graphics memory. First benchmarks show a 17% performance increase compared to the old GeForce MX450 which could indicate more shaders (1024 instead of 896). The similarly named GeForce MX570 is around 30% faster and uses the Ampere GA107 chip.

The gaming performance should be similar to the older GeForce GTX 1050 Ti and therefore demanding games will only run in low settings fluently.

The TU117 chip is manufactured on a 12nm TSMC process and should be rated at 25 Watt TGP (as the old MX450).