AMD Radeon RX 6600 vs AMD Radeon RX 6800S vs AMD Radeon RX 6600S

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 6800S

The AMD Radeon RX 6800S is a mobile high-end graphics card for gaming laptops. It uses the Navi 23 chip based on the new RDNA 2 architecture. It uses all 2,048 shaders (= 32 CUs), 128 TMUs, and 64 ROPs and therefore is similar to the desktop Radeon RX 6700 XT. The 128 Bit memory system connects 8 GB GDDR6 with 2 GHz memory clock. Furthermore, the RX6800S includes 32 MB Infinity Cache. The RX 6800S is the power saving variant of the RX 6800M and features slower clock speeds and a lower TDP.

Due to the lower clock speed, the performance should be lower than the RX 6800M. AMD specified the performance between the low power variants of the RTX 3070 (80-100W) and RTX 3080 (80-100W, former Max-Q).

The Navi 22 chip is manufactured at TSMC in the modern 7nm process. Thanks to the reduced TDP, the 6800S is suited for thin gaming laptops.

AMD Radeon RX 6600S

The AMD Radeon RX 6600S is a mobile mid-range graphics card based on the Navi 23 chip (RDNA 2  architecture) manufactured in the modern 7nm process. It features 1,792 cores (28 CUs - compute units) and 8 GB of fast GDDR6 graphics memory connected with a 128 Bit memory bus. The chip also includes 32 MB Infinity Cache. The RAdeon RX 6600S is the power saving variant of the RX 6600M with reduced core speed of 1.88 GHz versus 2.2 GHz. 

AMD compares the gaming performance to a low power RTX 3060 for laptops (80W, former known as Max-Q). When Raytracing effects are activated, it falls behind the GeForce GPUs.

The Navi 21 chip is manufactured at TSMC in the modern 7nm process. Thanks to the reduced TDP of up to 80W, the RX 6600S is well suited for thin gaming laptops.