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AMD has announced new graphics cards. Big Navi cards are expected to be able to keep up with Nvidia’s RTX 30 series and appear in November.
AMD announces three new graphics cards with RDNA2 architecture: the RX 6900 XT for $ 999, the RX 6800 XT for $ 649 and the RX 6800 for $ 479. The cards compete with Nvidia’s RTX 3090, RTX 3080, and RTX 3070. Overall, AMD promises 50 to 65 more performance per watt than the RDNA-1 architecture.
RX 6900 and RX 6800 graphics cards: version and specifications
The RX 6900 XT will be released on December 8th and comes with 80 processing units, 2,015 MHz base and 2,250 MHz boost clock, and 16 gigabytes of GDDR6 memory. According to AMD, the TDP is 300 watts. In AMD’s gaming benchmarks, the RX 6900 XT is in no way inferior to Nvidia’s competition and is on par with the RTX 3090, which costs US $ 1,499 (reviews).
The RX 6800 XT will be released on November 18th and comes with 72 processing units, 2,015 MHz base and 2,250 MHz boost clock and also 16 gigabytes of GDDR6 memory. The TDP is also here at 300 watts. In the benchmarks, the card consistently hit over 60 frames per second at 4K resolution and is on par with the RTX 3080 (reviews).
The RX 6800 will also be released on November 18th and offers 60 processing units, 1815 MHz base and 2105 MHz boost clock and, like other models, 16 gigabytes of GDDR6 memory. The TDP is 250 watts. According to AMD, the performance is on average around 18% better than an Nvidia RTX 2080 Ti and could therefore leave the RTX 3070 (reviews) behind by a few percentage points.
Improved memory connection and ray tracing hardware
AMD used a Ryzen 5000 processor for benchmarks and was able to use two new features of the RX 6000 series: Rage Mode and AMD Smart Access Memory.
Rage mode is a one-click solution to automatically increase the clock rates of graphics cards (overclocking). Smart Access Memory allows the processor to directly access the graphics card memory and should also offer a few percentage points of performance improvement. In a direct comparison, both features offer between two and eight percent more performance, with an outlier of 13 percent.
AMD’s RX-6000 series also offers two major innovations: Hardware ray tracing and so-called Infinity Cache. The 128 megabyte cache is said to be able to double the memory transfer rate of a traditional 256-bit connection with lower power consumption and is therefore far ahead of a 384-bit connection.
For DirectX 12 Ultimate, AMD also installed ray tracing hardware accelerators on the cards. AMD showed no comparative benchmarks with Nvidia’s RTX cards.
AMD also announced a few more features like improved variable speed shading and latency reduction for gamers. However, AMD didn’t have an alternative to Nvidia’s powerful DLSS AI graphics technology.
If AMD’s performance promise is upheld, the company has an attractive alternative to Nvidia’s currently barely available RTX-30 cards at these prices and generously built memory.
Cover image: AMD
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AMD Big Navi RX 6900 and RX 6800: known price and performance was last modified: October 28, 2020 of
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