DrMrLordX
Lifer
- Apr 27, 2000
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I wonder if this will lead to extra efficiency or performance beyond HBM2.
HBM3 hasn't turned up anywhere yet (that I know of), but there's stuff like HBM2e. Should be cheaper/more efficienct.
I wonder if this will lead to extra efficiency or performance beyond HBM2.
You missed the point. No GPU with 5500XT levels of performance should be bottlenecking even Gen3 x8. Even a 2080Ti can only barely do so, and it only looses like 1-2% performance with x8.There is no weirdness.
What happens is that in ALL PCIe 3.0 boards, the 5500XT works @ x8 PCIe 3.0 while with X570 boards it works @ x8 PCIe 4.0. The difference stems from the fact that boards with PCIe 3.0 have HALF the bandwidth of X570 boards, that have PCIe 4.0.
Effectively, when you place ANY PCIe 4.0 card in a non-PCIE 4.0 board, you're bottlenecking the card's true performance. It the case of the 5700(XT) card(s) you don't notice it much because of the VRAM present in the card but you may notice in SOME games if you use a 5500(XT) card.
You missed the point. No GPU with 5500XT levels of performance should be bottlenecking even Gen3 x8. Even a 2080Ti can only barely do so, and it only looses like 1-2% performance with x8.
And yet even the 8GB model of the 5500XT saw a difference in performance from the switch from Gen 3 to Gen 4.But that card has WAY more VRAM, specially VS the 4GB 5500XT models so the need for PCIe communication in VRAM saturation cases doesn't happen as often and thus doesn't become relevant. Not so with the 5500XT 4GB models.
And yet even the 8GB model of the 5500XT saw a difference in performance from the switch from Gen 3 to Gen 4.
But it shouldn't have seen one at all. See the problem?Yes, but significantly smaller when compared to the 4GB models.
EDIT
This is off topic: there is a topic about this already so i suggest we continue the discussion there. Don't have the link, though
My Navi10 runs on a PCIe3 board with a PCIe3 CPUNah, you can switch between the different modes in BIOS afaik. I think so anyway, I don't actually have one myself.
I meant the fixed Navi 10 errata rather than future HBM derivatives/successors.HBM3 hasn't turned up anywhere yet (that I know of), but there's stuff like HBM2e. Should be cheaper/more efficienct.
There is no weirdness.
What happens is that in ALL PCIe 3.0 boards, the 5500XT works @ x8 PCIe 3.0 while with X570 boards it works @ x8 PCIe 4.0. The difference stems from the fact that boards with PCIe 3.0 have HALF the bandwidth of X570 boards, that have PCIe 4.0.
Effectively, when you place ANY PCIe 4.0 card in a non-PCIE 4.0 board, you're bottlenecking the card's true performance. It the case of the 5700(XT) card(s) you don't notice it much because of the VRAM present in the card but you may notice in SOME games if you use a 5500(XT) card.
You missed the point. No GPU with 5500XT levels of performance should be bottlenecking even Gen3 x8. Even a 2080Ti can only barely do so, and it only looses like 1-2% performance with x8.
I really hope that's true! I have decided to skip Ryzen 3000 altogether due to 3950X delays and shortages but looking good for an improved 16 core Zen3 next year!
This boat is getting pretty crowded! I couldn't justify upgrading my 2600X. Though I wanted to, just because.I'm in the same boat. Can't justify a one generation upgrade. Waiting to see what the 4700x/4900x brings to the table late 2020.
17% IPC increase over Zen 2. They state 10-12% better integer performance and up to 50% better floating point. AVX 512?
Or 50% more AVX2 FPUs.AMD Zen 3 CPUs Allegedly Features 17% IPC Gain Over Zen 2 Architecture, Ryzen 4000 'Vermeer' CPUs to Feature Huge Performance Upgrade Over Ryzen 3000
AMD's next-generation Zen 3 architecture based Ryzen 4000 & EPYC Milan CPUs are rumored to feature a massive 17% IPC gain compared to Zen 2.wccftech.com
17% IPC increase over Zen 2. They state 10-12% better integer performance and up to 50% better floating point. AVX 512?
Or 50% more AVX2 FPUs.
The API, sure, the vector width, not so much. Even after this rumor. Otherwise it wouldn't be "50%". "Up to 50%" sounds more like a third FMA. Interesting that they didn't aim for Cascade Lake parity, but not completely surprising for all the reasons quoted above.I honestly don't expect AVX 512.
It's almost sure that Ryzen 4000 will either come out @ holidays 2020 or 1H 2021.I really hope that's true! I have decided to skip Ryzen 3000 altogether due to 3950X delays and shortages but looking good for an improved 16 core Zen3 next year!
It's almost sure that Ryzen 4000 will either come out @ holidays 2020 or 1H 2021.
The API, sure, the vector width, not so much. Even after this rumor. Otherwise it wouldn't be "50%". "Up to 50%" sounds more like a third FMA. Interesting that they didn't aim for Cascade Lake parity, but not completely surprising for all the reasons quoted above.
Zen 2 came out Q3 2019, consumer Zen 3 is practically impossible in Q3 2020, I'd say it's even improbable @ holidays 2020, but not impossible at least. There's also no reason for it, it's not like CML will be that huge of a threat on the desktop.Almost certain or just what you expect? I'm thinking back to school (August) if they try to rush it, or more likely September/October.
Would be an odd intermediary step, but I could see Zen 3 with 3x256b FMAC and Zen 4 with 4x256b FMAC. The latter may need too much space to fit in 7nm+'s density improvement.Maybe, maybe not. Correct me if I'm wrong, but Zen1/Zen+ were 2x128b FMAC and Zen2 is 2x256b FMAC, correct? Zen3 may just be 4x256b FMAC though I would think that would give more than +50% performance in fp. That would hint at AVX512 support, but that wouldn't absolutely be necessary.
The pattern so far is a new Ryzen gen every 14 months.It's almost sure that Ryzen 4000 will either come out @ holidays 2020 or 1H 2021.
Zen 2 came out Q3 2019, consumer Zen 3 is practically impossible in Q3 2020, I'd say it's even improbable @ holidays 2020, but not impossible at least. There's also no reason for it, it's not like CML will be that huge of a threat on the desktop.
But you do realize, that the Ryzen 2000 series that came after 14 month, was not a new uarch, merely some optimizations plus a little bit better process? If I follow what @moinmoin said, Zen 3 would come 28 months after July 2019... of course it wont take that long, but I don't get you guys, maybe I'm dumb.See what @moinmoin wrote. March '17. Refresh came April '18. Zen 2 came July '19. I expect the time between Zen+ and Zen 2 will be similar to that of Zen 2 and Zen 3. That puts it at September 2020. That's why I said August if they rush it for back to school sales, or more likely, September/October.
Also, I wouldn't be so sure that they "won't need it". The last time AMD got complacent was when they had K8 and got a bit lazy. We all know how badly that ended.