Rumor: AMD Radeon Big Navi has 16GB VRAM (NAVI21), and 12GB for NAVI22

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#5833833
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ttnuagmada:

You'll get nothing but micro-stutter out of SLI on the tiny handfull of games that it actually works with. I've had dual GPU's going back 12+ years, and Pascal is the last time I will ever do it. The few rando's who think SLI still works are just not observant enough to know what microstutter is.
listen to the man I've had 580-680-780-980-1080 sli each of them the day one game didn't work with sli and I had to disable the second card I realized the 80fps I now had instead of 120 were smoother also sli has been officially killed by nvidia forever ending it's support, keep your money to buy a single 3080/ti/super or maybe (highly doubt it) a new radeon
#5833835
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I'm buying one, but I am also buying a 3090. AND YES THE WAITING IS KILLING ME!!!
#5833843
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Big Navi aka Navi 21 die size of 505mm² is highly unlikely to compete with RTX 3080 die size of 625mm². Unless some revolutionary technology present with Navi 21, its very unlikely to beat a 3080.
#5833848
https://forums.guru3d.com/data/avatars/m/266/266726.jpg
poornaprakash:

Big Navi aka Navi 21 die size of 505mm² is highly unlikely to compete with RTX 3080 die size of 625mm². Unless some revolutionary technology present with Navi 21, its very unlikely to beat a 3080.
It should be noted that nvidia allocates alot of die space to tensor cores, which do not directly improve rasterization performance or your typical 3d workloads, so it is possible for amd, whether it will achieve the same raytracing or ML performance is another matter however.
#5833869
https://forums.guru3d.com/data/avatars/m/248/248627.jpg
I'll wait to see how this compares to the 3070 thats where I'm aiming performance/costwise.
#5833871
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poornaprakash:

Big Navi aka Navi 21 die size of 505mm² is highly unlikely to compete with RTX 3080 die size of 625mm². Unless some revolutionary technology present with Navi 21, its very unlikely to beat a 3080.
Die size is just half the equation Transistor density missing so let's do it proper shall we ? Samsung 8nm Density is 61.18 Million Transistor per 1mm² so die size of 625x61.18 = 38.237.500.000 or 38.25 billion Transistors Tsmc 7nm Density is 96.5 Million Transistor per 1mm² so die size of 505 x 95.3 = 48.732.500.000 or 48.75 billion Transistors ! if anything they have 22% more transistors to do it ! https://semiwiki.com/wp-content/uploads/2019/05/img_5cd106e96a81a.jpg.webp https://fuse.wikichip.org/wp-content/uploads/2018/06/samsung-density-14nm-10nm-8nm.png those are the sources i used to take the numbers i know they are around there not sure if 100% accurate ... that said i think my point comes across fine either way !
#5833881
https://forums.guru3d.com/data/avatars/m/87/87487.jpg
If 12 GB and 16 GB are true for AMD's forthcoming "Big Navi" GPUs then I would argue that those amounts are better for futureproofing than NVIDIA's worryingly low 8 GB and 10 GB for its current high end *affordable* Ampere GPUs. I personally think that the 3080 should have had at least 12 GB and the 3070 10 GB with the 3080 Ti (if that model even exists) having 16 GB. I suspect NVIDIA have used lower amounts of VRAM to keep the prices down after the criticism of the RTX 20000 series launch. I'm interested to see what AMD's RNDA2 cards can do but I am locked into NVIDIA cards, unfortunately, due to owning a ASUS ROG SWIFT PG279Q monitor that only supports G-SYNC and not FreeSync.
#5833897
https://forums.guru3d.com/data/avatars/m/180/180081.jpg
It takes around 5 years to turn around and build a good chip design, so we're still maybe a generation from the one where they truly catch up. Till then, I don't consider my 5700 XT Red Devil a flop card. The performance is perfect for my 3440x1440 monitor - the RTX 2070 Super would do just as well, but the first gen RT cards just can't run it as well as you'd like, so I wasn't going to pay an extra 25-30% for one. Value, that's all that matters. No brand loyalty or other things. The RTX part just wasn't enough value yet to be worth it. I will certainly consider the next gen stuff now that it's out, but I'll wait and see where AMD positions itself. Because there's value to be had in waiting.
#5833935
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poornaprakash:

Big Navi aka Navi 21 die size of 505mm² is highly unlikely to compete with RTX 3080 die size of 625mm². Unless some revolutionary technology present with Navi 21, its very unlikely to beat a 3080.
Nvidia is on Samsung 8nm (8LLP) which is actually 10nm process with 10% lower power consumption and 10% smaller die. No other enhancements or benefits. AMD is on TSMC N7P not even N7 any more, not to be confused with N7+, having 33% better transistor density than the Samsung 8LLP and lower power consumption and higher clocks than the N7 (5700XT) Also arc matters. Whole Xbox X Series APU is 360mm2 that includes GPU, I/O and 8 Zen 2 cores. Yet is expected to be faster than the 2080Ti so around 3070 perf level. In addition RTX cards have a lot of space taken for Tensor Cores to work with DLSS.
#5834049
https://forums.guru3d.com/data/avatars/m/270/270008.jpg
poornaprakash:

Big Navi aka Navi 21 die size of 505mm² is highly unlikely to compete with RTX 3080 die size of 625mm². Unless some revolutionary technology present with Navi 21, its very unlikely to beat a 3080.
I wouldn't count them out yet. The TSMC 7nm process should be about 15% more efficient than the 8nm Samsung process which will help close the gap on 20% less die size. They should be able to run at higher frequencies with AMD's approach and stay within a reasonable TDP. Anyhow I personally am waiting to see what AMD has because whats a couple months.
#5834065
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With how it looks like the 3080 will be down I'd go for a 12GB AMD around 3070+ performance
amditisthen.png
#5834111
https://forums.guru3d.com/data/avatars/m/186/186805.jpg
Are some people here not reading this correctly? Navi Flounder is the lower end model with Sienna Cichlid being the big boy with 80CU's AMD promised 50% performance per watt when compared to RDNA1......... rumours point towards it actually being 60% Rumours also point towards a massive 128MB cache AMD are calling the "infinity cache" which will help to increase memory bandwidth and narrow the gap between GDDR6 and 6X Couple this with a better 7nm+ process, better IPC, Proven high clockspeeds in "relatively" low powered APU console systems. A "leaked" GPU picture with a heatsink that covers the entire GPU board and requires 2x8pin connectors..... It seems AMD are trying their best to give the best performance they can, even if this falls 10-15% short of the RTX3080 but costs $100-$150 less I know which one I am picking up.
#5834222
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CPC_RedDawn:

Are some people here not reading this correctly? Navi Flounder is the lower end model with Sienna Cichlid being the big boy with 80CU's AMD promised 50% performance per watt when compared to RDNA1......... rumours point towards it actually being 60% Rumours also point towards a massive 128MB cache AMD are calling the "infinity cache" which will help to increase memory bandwidth and narrow the gap between GDDR6 and 6X Couple this with a better 7nm+ process, better IPC, Proven high clockspeeds in "relatively" low powered APU console systems. A "leaked" GPU picture with a heatsink that covers the entire GPU board and requires 2x8pin connectors..... It seems AMD are trying their best to give the best performance they can, even if this falls 10-15% short of the RTX3080 but costs $100-$150 less I know which one I am picking up.
Yep apparently 80CU exists https://www.pcgamer.com/amp/a-linux-update-may-have-let-slip-amd-big-navis-mammoth-core/
#5834231
https://forums.guru3d.com/data/avatars/m/201/201426.jpg
CPC_RedDawn:

Are some people here not reading this correctly? Navi Flounder is the lower end model with Sienna Cichlid being the big boy with 80CU's AMD promised 50% performance per watt when compared to RDNA1......... rumours point towards it actually being 60% Rumours also point towards a massive 128MB cache AMD are calling the "infinity cache" which will help to increase memory bandwidth and narrow the gap between GDDR6 and 6X Couple this with a better 7nm+ process, better IPC, Proven high clockspeeds in "relatively" low powered APU console systems. A "leaked" GPU picture with a heatsink that covers the entire GPU board and requires 2x8pin connectors..... It seems AMD are trying their best to give the best performance they can, even if this falls 10-15% short of the RTX3080 but costs $100-$150 less I know which one I am picking up.
If your close to how it performs, I will be all over the SC navi. my 5700xt is nice and does well but damn would the big navi top dog fly. Currently on 3440x1440 100hz. And since I upgrade monitors every 5 years. I still have 4 years on this one and its nice as hell. Only missing HDR but its not a deal breaker.
#5834351
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i`m all in for big navi , just like that 😉
#5834383
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If they can come out with a card that is (supposedly) near 3080 performance for $500 then sure they can come out with something that demolishes it at the same price point? Unless it doesn't scale well?
#5834399
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alanm:

The only way they would sell it for $499 is if its performance was no better than a 2080ti (3070).
Who knows, but it's still a rumor. AMD has been very tight lipped about this release. I'm hoping in a good way.

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