AMD Radeon 680M vs NVIDIA GeForce GTX 1660 Super (Desktop) vs

AMD Radeon 680M

The AMD Radeon 680M is an integrated GPU in the Ryzen 6000 series for laptops (Rembrandt, e.g. Ryzen 9 6980HX). The iGPU is based on the RDNA2 architecture and has 12 CUs (= 768 shaders) clocked at up to 2,400 MHz (depending on the CPU model). The 680M and 660M iGPUs are the first integrated graphics card with hardware raytracing support, although the performance is too slow to use it in current games.

Thanks to the new architecture, high core count and the increased maximum core clock, the Radeon 680M should be clearly faster then the old Radeon Vega 8 iGPUs. Therefore, the 680M should be the fastest integrated graphics card in early 2022. Compared to the dedicated Radeon 5300M (also RDNA), the 680M should still be significantly slower. According to AMD, the Radeon 680M (in the 6800U) is faster than a dedicated Nvidia GeForce MX450 and best suited for 1080p gaming and low details (for AAA games).

Thanks to the modern 6nm process and clever power-saving features, the power consumption is comparatively low (according to AMD), so the graphics card can also be used for slim and light notebooks (depending on the CPU model). The whole Ryzen 6000 chip can be configured down to 15W.

NVIDIA GeForce GTX 1660 Super (Desktop)

The Nvidia GeForce GTX 1660 Super is a powerful, mid-tier, Turing-based, desktop GPU. The GTX 1660 Super is based on the TU116 chip with 1,408 shader units, 48 ROPs, 88 TMUs and a 192-bit-wide memory bus (GDDR6 clocked at 7 GHz, effectively 14 GHz, bandwidth: up to 336 GB/s).

The TU116 chip and other Turing-based GPUs are produced using the 12-nm manufacturing process. However, the GeForce GTX 1660 does not offer the latest features such as DLSS (Deep Learning Super Sampling) and Real Time Ray Tracing. Nevertheless, there are some architectural improvements when it comes to floating point and integer performance. These operations can now be carried out simultaneously. Other notable features include Adaptive Shading, unified cache, DisplayPort 1.4, HDMI 2.0b, HDR, Simultaneous Multi-Projection (SMP) as well as H.265 encoding and decoding (PlayReady 3.0).

At Full HD resolution, the GeForce GTX 1660 Super performance lies between a GeForce GTX 1660 / GTX 1060 and a GTX 1660 Ti / 1070. Therefore, it is most suited for demanding games of 2019 in full HD resolution and maximum detail settings, or QHD at slightly reduced settings.

The energy consumption of the GeForce GTX 1660 Super amounts to 125 watts and therefore 5 Watt higher than the GTX 1060 or GTX 1660 Ti.