Intel UHD Graphics 620 vs NVIDIA GeForce GTX 1060 Mobile vs NVIDIA GeForce GTX 1080 SLI (Laptop)

Intel UHD Graphics 620

The Intel UHD Graphics 620 (GT2) is an integrated graphics unit, which can be found in various ULV (Ultra Low Voltage) processors of the Kaby Lake Refresh generation (8th generation Core). Compared to the similar named Intel HD Graphics 620 in the 2016 Kaby Lake CPUs, only the name changed from HD to UHD. It is clocked with up to 1.150 MHz and therefore 100 MHz higher than the old HD Graphics 620 (max. 1.050 MHz) and offer a comparable performance. Due to its lack of dedicated graphics memory or eDRAM cache, the HD 620 has to access the main memory (2x 64bit DDR3/DDR4).

Performance

The exact performance of the UHD Graphics 620 depends on various factors like L3 cache size, memory configuration (DDR3/DDR4) and maximum clock rate of the specific model and as is similar to the Intel HD Graphics 620 and Intel HD Graphics 630. Compared to the average HD Graphics 620, the UHD graphics profits from the quad-core CPU a bit in our gaming benchmarks. Therefore, should be positioned between a GeForce 910M and 920M dedicated graphics card from Nvidia. For games, the drivers however are not that fast updated and tested as with GeForce graphics cards. In our tests, the UHD 620 is most suited for casual games like Team Fortress 2, Rocket League or Farming Simulator 17. See below for a list of modern games tested with various models.

Features

The revised video engine now supports H.265/HEVC Main10 profile in hardware with 10 bit colors. Furthermore, Googles VP9 codec can also be hardware decoded. The first models do not support HDCP 2.2 and therefore Netflix 4K. This was added with the new models in 2017 and beginning of May 2017 also the older CPU models like the i3-7100U are now shipped with a new S-Spec Code that supports HDCP 2.2. HDMI 2.0 however is still only supported with an external converter chip (LSPCon).

Power Consumption

The UHD Graphics 620 can be found in mobile processors specified at 15 W TDP and is therefore suited for compact laptops and ultrabooks. The power consumption during playing The Witcher 3 (with an external monitor) was comparable to a Intel HD Graphics 620 based laptop and on the lowest end of all of our measurements. Dedicated GPUs, like the GeForce 940MX, needed a lot more power.

NVIDIA GeForce GTX 1060 Mobile

The mobile Nvidia GeForce GTX 1060 is a graphics card for high end laptops. It is based on the Pascal architecture and manufactured in 16 nm FinFET at TSMC. The GPU is using the smaller GP106 chip. Compared to the desktop version of the GTX 1060, the laptop version offers the same amount of shaders but slightly lower clock rates. The TDP is slightly less than the old GTX 970M (predecessor).

For thin and light laptops Nvidia offer a Max-Q called version of the GTX 1060 with lower TDP and also significantly lower performance. Sadly this variant im sold with the same GTX 1060 name, making it hard to judge the performance.

The performance of the mobile GTX 1060 is a few percent below a reference GTX 1060 desktop card. In our benchmark so far (no max-Q version) the mobile GTX 1060 was somewhere between -1 and -16% slower than a desktop variant. A comprehensive review of the dekstop GeForce GTX 1060 Founders Edition with 6 GB GDDR5 can be found here. Therefore, the card is most suited for Full HD or WQHD gaming in high to maximum details (see benchmarks below).

The GP106 chip is produced in 16nm FinFET at TSMC and offers a range of new features, like DisplayPort 1.4 (ready), HDMI 2.0b, HDR, Simultaneous Multi-Projection (SMP) and improved H.265 video de- and encoding (PlayReady 3.0). A list of improvements and features can be found in our article on the Pascal architecture.

The power consumption is specified with a TGP of 80 Watt and therefore slightly below the old GTX 970M. Since summer 2017 a low power variant (Max-Q) is available for thin and light laptops with reduced performance and a lower TGP of 60 - 70 Watt.

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.