AMD Radeon RX 6600 vs AMD Radeon RX 6800M

AMD Radeon RX 6600

The AMD Radeon RX 6600 is a mid-range desktop graphics card that is based on the RDNA 2 architecture and uses the Navi 23 chip. It offers 1,792 shaders and 8 GB GDDR6 VRAM with a 128 bit memory interface (14 Gbps, 224 GB/s max).

The RDNA2 architecture offers new features like SAM (Smart Access Memory) and Infinity Cache. PCIe 4.0, RIS (Radeon Image Sharpener) and Raytracing support are also included in the RX6600.

The gaming performance of the RX 6600 is comparable to a GeForce RTX 2060 Super (Desktop). The previous generation Radeon RX 5600 can be easily bested. Therefore, the RX 6600 is best suited for demanding games in 1080p and high details.

The power consumption is rated at 132 Watt (TGP) by AMD and therefore offers a rather low power consumption compared to the previous generations with similar performance.

AMD Radeon RX 6800M

The AMD Radeon RX 6800M is a mobile high-end graphics card for gaming laptops. It uses the Navi 22 chip based on the new RDNA 2 architecture. It uses all 2,560 shaders (= 40 CUs), 160 TMUs, and 64 ROPs and therefore is similar to the desktop Radeon RX 6700 XT. The 192 Bit memory system connects 12 GB GDDR6 with 2 GHz memory clock. Furthermore, the RX6800M includes 96 MB Infinity Cache. AMD specified 2.3 GHz game clock for 11.8 TFLOPS theoretical performance at a TDP of 145 Watt. This means the GPU is in theory 11% faster than the RX 6700M.

The gaming performance of the RX 6800M (e.g. in the Asus ROG Strix G15) is positioned between a RTX 3070 and 3080. In some games the GPU can even surpass a fast RTX 3080. On the other side, when Raytracing effects are activated, it falls behind the GeForce GPUs.

The Navi 22 chip is manufactured at TSMC in the modern 7nm process.