AMD Radeon R7 M445 vs NVIDIA GeForce GTX 1080 SLI (Laptop)

AMD Radeon R7 M445

The Radeon R7 M445 is an entry-level graphics card for laptops. It is based on the same chip as the old Radeon R7 M340 (and therefore renamed M440) but features faster GDDR5 graphics memory. Although the core speed is slightly reduced, compared to the M440, the general performance is clearly better. On average the gaming performance should be similar to a Nvidia GeForce 940M (or 940MX with DDR3).

The Radeon R7 M445 is produced in 28 nm and still based on an old GCN chip (no new Polaris architecture).

NVIDIA GeForce GTX 1080 SLI (Laptop)

The Nvidia GeForce GTX 1080 SLI for laptops is a combination of two GTX 1080 graphics cards in SLI mode. Each card renders one frame at a time (AFR mode) but depends for most games on a good profile in the driver. Therefore, the performance can range from no gains over a single GTX 1080 to up to 90% faster performance. Sometimes, the combination may also suffer from micro-stuttering. The technical details of the card are identical to a single GTX 1080 (see for more information) and the power consumption is doubled. Therefore, the 1080 SLI combination is only found in huge clunky laptops.