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Radeon 6800M Tackles GeForce 3080

June 22, 2021

Author: Linley Gwennap

AMD is targeting the hot gaming-laptop market with its new Radeon RX 6000M GPU family, bringing the power of its Navi architecture to thermally constrained systems. But not too constrained: the top-of-the-line 6800M carries a 145W TGP (thermal gaming power) rating, and the company even adds a “+” to indicate the number is more of a suggestion than a specification. This power enables the new GPU to deliver a silky smooth 120 frames per second (fps) on 1440p displays for most games and at least 60fps for leading-edge AAA games like Assassin’s Creed Valhalla and Borderlands 3.

The 6800M features a downsized version of the Big Navi chip that AMD offers in its desktop GPU cards; the Navi 22 version has 40 cores, half as many as the desktop version. The smaller core count lets the chip maintain a high base clock speed of 2.3GHz even at the lower power limit. The laptop model also trims the memory bandwidth by 25%. The other family members are the Radeon RX 6600M and 6700M, which further reduce the core count and memory to fit into as little as 100W TGP. The 6800M is already available in laptops, with the others following in the third quarter.

The 6800M targets Nvidia’s best mobile GPU, officially called the GeForce RTX 3080 for Laptops, an Ampere-based device that entered production last quarter. In game performance, the Navi design falls a bit short of the top-end 3080, which has a 150W TGP rating, but that product is difficult to obtain. The 6800M matches up well against the more common 130W model of the 3080 and tops the performance of the 110W model.

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