AMD Radeon RX 560X (Laptop) vs NVIDIA GeForce GTX 960M vs AMD Radeon RX 570 (Desktop)

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.

NVIDIA GeForce GTX 960M

The NVIDIA GeForce GTX 960M is an upper mid-range, DirectX 11-compatible graphics card for laptops unveiled in March 2015. It is based on Nvidia's Maxwell architecture (GM107 chip) and manufactured in 28 nm. The GTX 960M offers 640 shader units clocked at 1097 - 1202 MHz (Boost) as well as fast GDDR5 memory (128 bit, 5000 MHz effective, 80 GB/s).

Compared to the previous and technically very similar GTX 860M, the GTX 960M is clocked slightly higher.

Architecture

Compared to Kepler, Maxwell has been optimized in several details to increase power efficiency. Smaller Streaming Multiprocessors (SMM) with only 128 ALUs (Kepler: 192) and an optimized scheduler should lead to better utilization of the shaders. Nvidia promises that a Maxwell SMM with 128 ALUs can offer 90 percent of the performance of a Kepler SMX with 192 ALUs. GM107 features 5 SMMs and thus 640 shader cores, 40 TMUs and 16 ROPs (128-bit interface).

Another optimization is the massively enlarged L2 cache (GM107: 2 MB). The increased size can handle some of the memory traffic to allow for a relatively narrow memory interface without significantly reducing the performance.

GM107 supports DirectX 12 with feature level 11_0 only.

Performance

Although the GTX 960M has the same memory bandwidth as the previous GTX 860M, its higher core clock leads to a slightly better performance. Overall, the 960M is almost 10 percent faster and similar to the desktop GTX 750 Ti.

Many games of 2014/2015 can be played fluently in FullHD resolution and high detail settings. However, very demanding games such as Assassin's Creed Unity will require lower resolutions and/or details.

Features

GM107 integrates the sixth generation of the PureVideo HD video engine (VP6), offering a better decoding performance for H.264 and MPEG-2 videos. Of course, VP6 supports all features of previous generations (4K support, PIP, video encoding via NVENC API). Unfortunately, HDMI 2.0 is still not supported.

Power Consumption

The power consumption of the GeForce GTX 960M should be similar to the old GTX 860M (about 60 watts). Therefore, the GPU is best suited for 15-inch laptops or larger. The 900M series also supports Optimus to automatically switch between an integrated graphics card and the Nvidia GPU.

AMD Radeon RX 570 (Desktop)

The AMD Radeon RX 570 is a mainstream graphics card for desktop PCs. It was announced in April 2017 and is based on the Polaris 20 chip. It is a refresh of the RX 470 and uses the same chip as the RX 580 (and 580X) with less shaders. The clock speeds are specified as 1,168 - 1,244 (Boost). The VRAM is connected by a 256 Bit bus and clocks at 1,750 MHz (effective 7,000 MHz) which leads to a 224 GB/s memory bandwidth.

At launch, the performance of the Radeon RX 570 was slightly below a Nvidia GeForce GTX 1060. Therefore, the GPU is best used for 1920x1080 and high detail settings for demanding games of 2019.

The TDP of the Radeon RX 570 is specified with 120 Watts by AMD, so a single 6-pin power connector is sufficient.