NVIDIA GeForce RTX 3080 12 GB vs AMD Radeon RX 5300M

NVIDIA GeForce RTX 3080 12 GB

The Nvidia GeForce RTX 3080 12GB is high-end desktop graphics card based on the Ampere generation. It uses the big GA102 chip and offers 8,704 shaders and 12 GB GDDR6X graphics memory. Compared to the older 10 GB model, the 12 GB model offers more bandwidth and therefore a higher TDP.

The gaming performance in 4k is clearly better than the old GeForce RTX 2080 Ti (approximately 15% faster). Therefore, even demanding games should run with maximum detail settings in 4k. Enabling raytracing will however reduce the framerate and therefore maximum details won't be playable. 

The RTX3080 is produced in 8nm at Samsung and rated at 350 Watt.

AMD Radeon RX 5300M

The AMD Radeon RX 5300M is a dedicated mobile mid-range graphics card for laptops. It uses the new Navi 14 chip (RDNA architecture) which is produced in 7nm. Is supports fast and expensive GDDR6 VRAM and when using it, it should be faster than a GeForce GTX 1650 (according to leaked benchmarks from AMD).

The Navi 14 chip uses the new RDNA (Radeon DNA) microarchitecture which is a successor the the GCN instruction set. It features a new processor design, a multi-level cache hierarchy and an improved rendering pipeline with support for GDDR6 memory.

The performance should be around the GeForce GTX 1650 according to AMD. Therefore, it is most suited for medium to high detail settings in full HD for demanding games in 2019.

The RX5300M uses the same amount of compute cores as the faster 5500M but at a lower clock rate that leads to a lower TDP of the chip of 65 Watt (versus 85W of the 5500M).