AMD Radeon RX 560X (Laptop) vs Intel HD Graphics 620 vs Intel Iris Plus Graphics 645

AMD Radeon RX 560X (Laptop)

The AMD Radeon RX 560X for laptops (RX 560X Mobile) is a mid-range Polaris 11 / 21 gaming graphics card for laptops. Compared to the slightly older Radeon RX 560 for laptops (see for benchmarks), the RX 560X features only slightly altered clock speeds but should perform quite similar. Offers 1024 shader cores and a usual clock speed of 1175 - 1275 MHz. More information on the Polaris architecture and its features can be found here.

Currently AMD sells the mobile Radeon RX 560X with 4 GB GDDR5 (128 Bit) and a TDP of 60 - 80 Watt for around 50 - 60 Dollars to laptop manufacturers.

Intel HD Graphics 620

The Intel HD Graphics 620 (GT2) is an integrated graphics unit, which can be found in various ULV (Ultra Low Voltage) processors of the Kaby Lake generation. This "GT2" version of the Kaby Lake GPU is clocked at up to 1050 MHz (depending on the CPU model). 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 HD Graphics 620 depends on various factors like L3 cache size, memory configuration (DDR3/DDR4) and maximum clock rate of the specific model but is very similar to the old HD Graphics 520 GPU. That means only some less demanding recent games like Farming Simulator 17 run fluently in low detail settings (see below for gaming benchmarks). Compared to dedicated graphics cards, the HD620 should be positioned between a GeForce 910M and 920M from Nvidia. For games, the drivers however are not that fast updated and tested as with GeForce graphics cards.

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 HD Graphics 620 can be found in mobile processors specified at 15 W TDP and is therefore suited for compact laptops and ultrabooks.

Intel Iris Plus Graphics 645