Tuesday, September 22nd 2020
AMD Radeon "Navy Flounder" Features 40CU, 192-bit GDDR6 Memory
AMD uses offbeat codenames such as the "Great Horned Owl," "Sienna Cichlid" and "Navy Flounder" to identify sources of leaks internally. One such upcoming product, codenamed "Navy Flounder," is shaping up to be a possible successor to the RX 5500 XT, the company's 1080p segment-leading product. According to ROCm compute code fished out by stblr on Reddit, this GPU is configured with 40 compute units, a step up from 14 on the RX 5500 XT, and retains a 192-bit wide GDDR6 memory interface.
Assuming the RDNA2 compute unit on next-gen Radeon RX graphics processors has the same number of stream processors per CU, we're looking at 2,560 stream processors for the "Navy Flounder," compared to 80 on "Sienna Cichlid." The 192-bit wide memory interface allows a high degree of segmentation for AMD's product managers for graphics cards under the $250-mark.
Sources:
VideoCardz, stblr (Reddit)
Assuming the RDNA2 compute unit on next-gen Radeon RX graphics processors has the same number of stream processors per CU, we're looking at 2,560 stream processors for the "Navy Flounder," compared to 80 on "Sienna Cichlid." The 192-bit wide memory interface allows a high degree of segmentation for AMD's product managers for graphics cards under the $250-mark.
135 Comments on AMD Radeon "Navy Flounder" Features 40CU, 192-bit GDDR6 Memory
www.techpowerup.com/gpu-specs/radeon-rx-5600-xt.c3474
Both Navi 21 and 22 are likely on 256 bits with 16 GB. You really think they'd have such a discrepancy between them and Navi 23 ?
Bring it on.
75 Watt equivalent to 1650 (PCIe)
150 Watt equivalent to 5600XT (6-pin + PCIe)
225 Watt equivalent to 2080 (8-pin + PCIe)
300 Watt equivalent to 3070 (6-pin + 8-pin + PCIe)
375 Watt equivalent to 3080 (2x 8-pin + PCIe)
In case you may have forgotten Nvidia isn't "sticking with 8GB", they also have 10 and 24 GB cards not to mention the leaks about even more higher capacity upcoming cards. Navi 21 is a large die >=500 mm^2 likely similar in performance with a 3080 and I can guarantee you it's going to have 16 GB of VRAM.No one says it's a replacement for 5600 and even if it were no one says that it must have 6GB. This card is going to be noticeably faster than a 5700XT if it has 40CUs, can you imagine how stupid it would be for it to have less memory ?
The GPU silicon uses about 30-50% of card's total power (use GPUz to find your core's power draw vs the total board draw).
Anyways, the question is, where did you pull your 10% number? it doesn't seem to include any architecture improvement, or that is most likely a big issue.
I agree with you that 6GBs for the low/mid range would be the sweet spot. Also, given the 192-bit bus, I think 6GBs is most likely, but AMD could very well deliver 12GB versions of the card for kicks.
Bus wise this should be a 5600XT replacement with 4 more CU's and Navi2 improvements.
AMD will not release it with 6 GB Vram as they said gfx cards will less than 8 GB are not future proof.
The assumption it'll be higher and not just much bigger is unfounded, especially considering AMD's history over the last five years. If they deliver, fantastic. But to bet on it at this point... myyeah
Seriously though I wonder if they sped up the HSR any on the "RDNA" cards or is it still at pathetic HD 7970 rate... Perhaps one could test it with Archmark benchmark...