Intel Iris Plus Graphics 655 vs NVIDIA GeForce GTX 1080 (Desktop) vs NVIDIA GeForce GTX 1080 Max-Q

Intel Iris Plus Graphics 655

NVIDIA GeForce GTX 1080 (Desktop)

The Nvidia GeForce GTX 1080 is a fast desktop graphics card based on the Pascal architecture. It was announced in May 2016 and offers all 2,560 shader of the used GP104 chip. Furthermore, the GPU is coupled with 8 GB GDDR5X graphics memory using a 256 Bit interface (10 GHz, 320 GB/s). The chip is manufactured at TSMC in 16nm (FinFET). The TDP is specified at 180 Watt and therefore slightly higher than the predecessor, the GTX 980 with 165 Watt.

NVIDIA GeForce GTX 1080 Max-Q

The Nvidia GeForce GTX 1080 with the Max-Q design is a mobile high-end GPU from the Pascal series. It is designed for thin and light laptops and about 10-15% slower than a regular GTX 1080 for laptops based on the cooling capabilities. The base frequency (1101-1290 MHz) is also much lower than on the regular GTX 1080 (1566 MHz, at least -18%) and the Boost (1278-1458 MHz) is also much lower compared to 1733 MHz (at least -16%) for the regular GTX 1080. The memory clock, however, is identical.

The clock is not the only difference compared to the regular GTX 1080 though. The drivers for the Max-Q version were optimized for efficiency (and not performance; only for Max-Q models), there are optimized voltage converters for 1V operation, high-end cooling methods, and a 40 dB limit for the fan noise (with clock adjustments to ensure this at all times).

The performance is nearer to the normal (Max-P) GeForce GTX 1070 than to then GTX 1080 (at least in the Asus Zephyrus). Therefore, most demanding games should be playable in full HD and maximum detail settings (see game benchmarks below).

Features

The GP104 chip is manufactured in 16nm FinFET process at TSMC and offers a range of new features. DisplayPort 1.4 (ready), HDMI 2.0b, HDR, Simultaneous Multi-Projection (SMP), improved H.265 video en- and decoders (for PlayReady 3.0) are only some of the improvements. See our detailed Pascal architecture article for more details.

The power consumption of the Max-Q design is notably lower than the normal GTX 1080 for laptops and ranges between 90 and 110 Watt (TGP) according to Nvidia.