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AMD Radeon 5800 XT (big NAVI) to get 80 Compute units?
The rumor mill on graphics cards news stops, today big NAVI is rumored to get 80 CS, that's double the 5700 XT. This would make the chip twice the size of the Radeon RX 5700 XT. Albeit AMD already confirmed the chip to be released this year, specs have never been mentioned.
Of course, specifications are derived from the rumor mill and should to be treated with caution. The new comes from Chiphell forum. That's 80 compute units with RDNA2 architecture and native ray tracing support, the chip: Navi 21.
The only question that arises, is whether this is realistic as doubling up CU count doubles up the die size, on the same 7nm fabrication node. AMD is keen to become a big player again in the enthusiast segment. To tackle a 2080 Ti they need something powerful, and Ampere/Hopper is lurking around the corner as well.
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Evildead666
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#5752690 Posted on: 01/21/2020 09:31 AM
If it needs memory bandwidth, it will need either a 512bit bus, or HBM.
I'd expect HBM again, for the very high end.
Not looking like chiplets yet either, unless they Quad-up the 5500/XT die.
If it needs memory bandwidth, it will need either a 512bit bus, or HBM.
I'd expect HBM again, for the very high end.
Not looking like chiplets yet either, unless they Quad-up the 5500/XT die.
DonMigs85
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Posts: 21
Joined: 2017-02-23
#5752692 Posted on: 01/21/2020 09:48 AM
It may slightly exceed the 2080 Ti, and perhaps match/slightly exceed the RTX 3070 as well, but will be far less efficient as usual
It may slightly exceed the 2080 Ti, and perhaps match/slightly exceed the RTX 3070 as well, but will be far less efficient as usual
cryohellinc
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Joined: 2014-10-20
Senior Member
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#5752694 Posted on: 01/21/2020 09:55 AM
Sincerely looking forward to more information on this!
Sincerely looking forward to more information on this!
Netherwind
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#5752696 Posted on: 01/21/2020 09:57 AM
Better than 2080Ti would be amazing. Obviously I'm still hoping for a card matching the 3080Ti so I can go Team Red for GPU as well but who knows.
Better than 2080Ti would be amazing. Obviously I'm still hoping for a card matching the 3080Ti so I can go Team Red for GPU as well but who knows.
fantaskarsef
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Posts: 11259
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#5752707 Posted on: 01/21/2020 10:29 AM
Now this is intriguing. If it's not a CFX card, and works well, this might be the time to switch to 4K gaming, with a new screen which is Freesync Premium super edition plus or whatever it's called these days.
edit: probably the card hinted at with that VR benchmark? +20% compared to a 2080TI there?
Now this is intriguing. If it's not a CFX card, and works well, this might be the time to switch to 4K gaming, with a new screen which is Freesync Premium super edition plus or whatever it's called these days.
edit: probably the card hinted at with that VR benchmark? +20% compared to a 2080TI there?
AlmondMan
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Joined: 2007-09-03
Senior Member
Posts: 501
Joined: 2007-09-03
#5752709 Posted on: 01/21/2020 10:38 AM
How do you figure? What do you know of RDNA2 that we don't?
It may slightly exceed the 2080 Ti, and perhaps match/slightly exceed the RTX 3070 as well, but will be far less efficient as usual
How do you figure? What do you know of RDNA2 that we don't?
warlord
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#5752718 Posted on: 01/21/2020 10:54 AM
It can easily be 20% faster than 2080ti.
It can easily be 20% faster than 2080ti.
Corbus
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#5752719 Posted on: 01/21/2020 10:59 AM
I'm more excited for big navi than nvidia 3k even though they'll be better. I really wish amd to do well in the GPU segment.
Even though my first and last amd card was a 5770,i'd like to switch to amd again.
I'm more excited for big navi than nvidia 3k even though they'll be better. I really wish amd to do well in the GPU segment.
Even though my first and last amd card was a 5770,i'd like to switch to amd again.
DARKSF
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Posts: 51
Joined: 2005-03-08
#5752721 Posted on: 01/21/2020 11:04 AM
Is the nuclear reactor needed for this GPU included in the package ?
Is the nuclear reactor needed for this GPU included in the package ?
panogr
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Posts: 34
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#5752722 Posted on: 01/21/2020 11:06 AM
if this is 5800xt, then what will be the 5950xt specification?
if this is 5800xt, then what will be the 5950xt specification?
JonasBeckman
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#5752723 Posted on: 01/21/2020 11:06 AM
One of the things AMD does tend to do is to push the voltage and resulting power draw pretty high almost to it's limits so since the AMD Fury at least if not even before that it's possible to nearly halve the power draw and lose at most maybe 5% performance.
Maybe things will be different here but if that makes a change between how the card positions itself against the 2080Ti then I expect AMD to go for it although at least it allows for a very good fine tuning should users want to try and balance it a bit.
EDIT: Though it could also be bit on how AMD and NVIDIA reports power draw and such, guessing at full load and boost they might not be that different.
EDIT: About 270 - 290w for the Ti it seems but then it also performs in a class of it's own.
5700XT has a 8x and a 6x by default and seems to be around 225w for how it performs but it has these spikes or high short period transient draws too which can almost hit 300w I think it was.
How do you figure? What do you know of RDNA2 that we don't?
One of the things AMD does tend to do is to push the voltage and resulting power draw pretty high almost to it's limits so since the AMD Fury at least if not even before that it's possible to nearly halve the power draw and lose at most maybe 5% performance.
Maybe things will be different here but if that makes a change between how the card positions itself against the 2080Ti then I expect AMD to go for it although at least it allows for a very good fine tuning should users want to try and balance it a bit.
EDIT: Though it could also be bit on how AMD and NVIDIA reports power draw and such, guessing at full load and boost they might not be that different.
EDIT: About 270 - 290w for the Ti it seems but then it also performs in a class of it's own.
5700XT has a 8x and a 6x by default and seems to be around 225w for how it performs but it has these spikes or high short period transient draws too which can almost hit 300w I think it was.
Evildead666
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#5752725 Posted on: 01/21/2020 11:10 AM
One of the things AMD does tend to do is to push the voltage and resulting power draw pretty high almost to it's limits so since the AMD Fury at least if not even before that it's possible to nearly halve the power draw and lose at most maybe 5% performance.
Maybe things will be different here but if that makes a change between how the card positions itself against the 2080Ti then I expect AMD to go for it although at least it allows for a very good fine tuning should users want to try and balance it a bit.
EDIT: Though it could also be bit on how AMD and NVIDIA reports power draw and such, guessing at full load and boost they might not be that different.
They have gained 50% efficiency with the Vega cores on the new APU's.
I'm pretty sure they will be using what they have learnt for the High end chips.
Two 5700Xt's would pull over 400W, they are going to have to drop that to 250/300W Max, if not less.
I Don't expect there to be any overclocking headroom though....
One of the things AMD does tend to do is to push the voltage and resulting power draw pretty high almost to it's limits so since the AMD Fury at least if not even before that it's possible to nearly halve the power draw and lose at most maybe 5% performance.
Maybe things will be different here but if that makes a change between how the card positions itself against the 2080Ti then I expect AMD to go for it although at least it allows for a very good fine tuning should users want to try and balance it a bit.
EDIT: Though it could also be bit on how AMD and NVIDIA reports power draw and such, guessing at full load and boost they might not be that different.
They have gained 50% efficiency with the Vega cores on the new APU's.
I'm pretty sure they will be using what they have learnt for the High end chips.
Two 5700Xt's would pull over 400W, they are going to have to drop that to 250/300W Max, if not less.
I Don't expect there to be any overclocking headroom though....
JonasBeckman
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#5752727 Posted on: 01/21/2020 11:13 AM
Yeah 7nm and other improvements plus whatever the clock speeds land at for how these additional compute units will require and then I guess we'll see about HBM2 or not which would increase price although it would also possibly reduce the memory bottleneck that would be hit with a lower bus width and GDDR6 unless AMD opts for 384 or 512 but it's speculative until more info is actually available.
EDIT: And how it scales now if doubling the compute units from 40 (5700XT) to 80 here.
EDIT: Maybe a bit too optimistic actually.
5900 and HBM2 and then 5800 here at 384 bit GDDR6 then at maybe ~10 GB or so possibly a bit faster if that's achievable.
EDIT: But then where does that leave this supposed 5950 unless it's a all out maxing the clocks and voltages with no remaining headroom just to push the GPU to it's limits for whatever performance gain could be had.
Though it should be more than just a specially high clocked 5900 but that's also what AMD did for the 590X over the 580X
Yeah 7nm and other improvements plus whatever the clock speeds land at for how these additional compute units will require and then I guess we'll see about HBM2 or not which would increase price although it would also possibly reduce the memory bottleneck that would be hit with a lower bus width and GDDR6 unless AMD opts for 384 or 512 but it's speculative until more info is actually available.
EDIT: And how it scales now if doubling the compute units from 40 (5700XT) to 80 here.
EDIT: Maybe a bit too optimistic actually.
5900 and HBM2 and then 5800 here at 384 bit GDDR6 then at maybe ~10 GB or so possibly a bit faster if that's achievable.
EDIT: But then where does that leave this supposed 5950 unless it's a all out maxing the clocks and voltages with no remaining headroom just to push the GPU to it's limits for whatever performance gain could be had.
Though it should be more than just a specially high clocked 5900 but that's also what AMD did for the 590X over the 580X
Vananovion
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#5752731 Posted on: 01/21/2020 11:25 AM
HBM2 might be necessary due to power budget reasons - same as with Vega. Also, performance didn't scale linearly with more CUs on Vega - some CUs were doing literally nothing on Vega64. Hopefully AMD worked that out and the scaling will be better. Or maybe the added CUs are meant for dedicated RT processing.
Still just rumors though. As much as I like to discuss the possibilities, nothing's certain until we get hard numbers.
HBM2 might be necessary due to power budget reasons - same as with Vega. Also, performance didn't scale linearly with more CUs on Vega - some CUs were doing literally nothing on Vega64. Hopefully AMD worked that out and the scaling will be better. Or maybe the added CUs are meant for dedicated RT processing.
Still just rumors though. As much as I like to discuss the possibilities, nothing's certain until we get hard numbers.
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Well, sounds good. Meanwhile the red team should/could/must tweak and optimize the drivers.
We all know how important is to have solid driver, able to make shine one product.
But Lisa Su until now proven a very capable lídCEO and lider and having foresight bordering the clairvoyant.