Wednesday, October 21st 2020
AMD Radeon RX 6000 Series Specs Leak: RX 6900 XT, RX 6800 XT, RX 6700 Series
AMD's Radeon RX 6000 series graphics cards, based on the RDNA2 graphics architecture, will see the introduction of the company's first DirectX 12 Ultimate graphics cards (featuring features such as real-time raytracing). A VideoCardz report sheds light on the specifications. The 7 nm "Navi 21" and "Navi 22" chips will power the top-end of the lineup. The flagship part is the Radeon RX 6900 XT, followed by the RX 6800 XT and RX 6800; which are all based on the "Navi 21." These are followed by the RX 6700 XT and RX 6700, which are based on the "Navi 22" silicon.
The "Navi 21" silicon physically features 80 RDNA2 compute units, working out to 5,120 stream processors. The RX 6900 XT maxes the chip out, enabling all 80 CUs, and is internally referred to as the "Navi 21 XTX." Besides these, the RX 6900 XT features 16 GB of GDDR6 memory across a 256-bit wide memory interface, and engine clocks boosting beyond 2.30 GHz. The next SKU in AMD's product stack is the RX 6800 XT (Navi 21 XT), featuring 72 out of 80 CUs, working out to 4,608 stream processors, the same 16 GB 256-bit GDDR6 memory configuration as the flagship, while its engine clocks go up to 2.25 GHz.
A notch below the RX 6800 XT is the RX 6800 (Navi 21 XL), which cuts down the "Navi 21" further, giving it 64 compute units or 4,096 stream processors; the very same 16 GB of 256-bit GDDR6 memory interface, and up to 2.15 GHz engine clocks. The RX 6900 XT, along with the RX 6800 series, will be announced in the October 28 presser.
The next chip AMD is designing is the 7 nm "Navi 22" silicon, which features 40 compute units. On paper, this count looks similar to that of the "Navi 10," and it remains to be seen if this is a re-badge or a new silicon based on RDNA2. The RX 6700 XT maxes this chip out, featuring 40 CUs or 2,560 stream processors; while the RX 6700 features fewer CUs (possibly 36). The interesting thing about these two is their memory configuration—12 GB of 192-bit GDDR6.
Source:
VideoCardz
The "Navi 21" silicon physically features 80 RDNA2 compute units, working out to 5,120 stream processors. The RX 6900 XT maxes the chip out, enabling all 80 CUs, and is internally referred to as the "Navi 21 XTX." Besides these, the RX 6900 XT features 16 GB of GDDR6 memory across a 256-bit wide memory interface, and engine clocks boosting beyond 2.30 GHz. The next SKU in AMD's product stack is the RX 6800 XT (Navi 21 XT), featuring 72 out of 80 CUs, working out to 4,608 stream processors, the same 16 GB 256-bit GDDR6 memory configuration as the flagship, while its engine clocks go up to 2.25 GHz.
The next chip AMD is designing is the 7 nm "Navi 22" silicon, which features 40 compute units. On paper, this count looks similar to that of the "Navi 10," and it remains to be seen if this is a re-badge or a new silicon based on RDNA2. The RX 6700 XT maxes this chip out, featuring 40 CUs or 2,560 stream processors; while the RX 6700 features fewer CUs (possibly 36). The interesting thing about these two is their memory configuration—12 GB of 192-bit GDDR6.
191 Comments on AMD Radeon RX 6000 Series Specs Leak: RX 6900 XT, RX 6800 XT, RX 6700 Series
$700/slower/READY TO SHIP > $700/faster/OUT OF STOCK
Depending on how well the RDNA2 architecture scales and how much IPC improvement there is, that model should be about twice as fast as a 5700XT which means it is potentially a 3070 competitor, only it'll have a more appropriate amount of GDDR6 than the Nvidia card.
I'm sure the 320W variants will be nice and fast but I'm not interested in trying to deal with that much heat from a card.
rx 6900 xt loose 15-20% and tdp is near over 350W.
3080 doesn't even seem worth it unless I can pick up a used one at some point with a 5800x/5600x.
Look Infinity Cache Patent details:
"We propose shared L1 caches in GPUs. To the best of our knowledge, this is the first paper that performs a thorough characterization of shared L1 caches in GPUs and shows that they can significantly improve the collective L1 hit rates and reduce the bandwidth pressure to the lower levels of the memory hierarchy."
• "We develop GPU-specific optimizations to reduce inter-core communication overheads. These optimizations are vital for maximizing the benefits of the shared L1 cache organization."
• "We develop a GPU-specific lightweight dynamic scheme that classifies application phases and reconfigures the L1 cache organization (shared or private) based on the phase behavior."
• "We extensively evaluate our proposal across 28 GPGPU applications. Our dynamic scheme boosts performance by 22% (up to 52%) and energy efficiency by 49% for the applications that exhibit high data replication and cache sensitivity without degrading the performance of the other applications. This is achieved at a modest area overhead of 0.09 mm2 /core."
www.freepatentsonline.com/y2020/0293445.html
adwaitjog.github.io/docs/pdf/sharedl1-pact20.pdf
At least Nvidia use RTX and GTX to distinguish their two lineups.
I'm not to heat up my damn house with a computer.
It really looks like I'm going to stick with my current Video card and maybe upgrade my CPU later.
The 2060 screwed the pooch as a pricing anomaly, and the only other time nvidia deviated from this pricing was the GTX 260 back in 2008, also considered a complete rip-off. I very much doubt Nvidia is going to target $275 for anything decent unless AMD has something that's cleaning house at that price point.