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Any news on 7800 xt?

Lightnix said:
I bet £630 at launch and it'll slowly settle down to that £550 point after a couple of months. They'll want to position it like the 6800 XT but it won't stick.
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Esp now it's been heavily rumoured that they're not going to bother utilising the AI elements within the architecture to improve FSR. I'm guessing a total lack of software engineers are restricting what they can do, and Nvidia are going great guns on DLSS atm pushing it for all it's worth!!!
 
JediFragger said:
Esp now it's been heavily rumoured that they're not going to bother utilising the AI elements within the architecture to improve FSR. I'm guessing a total lack of software engineers are restricting what they can do, and Nvidia are going great guns on DLSS atm pushing it for all it's worth!!!
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Yeah, AMD need to make up their minds. Seems totally bonkers to bake in AI/tensor acceleration and then just not use it.

Comparing AMD and Nvidia careers lists sort of sheds some light on this I think. Nvidia recruit hard for software developers all over the world whereas AMD limit it to a much smaller number of sites. Both companies have fairly stringent educational requirements but you have to imagine it's a lot easier to find people with postgraduate degrees in the relevant specialisms if you don't limit your search to Texas for example.
 
Lightnix said:
This is interesting: https://www.techpowerup.com/310420/...-new-asic-with-navi-31-gcd-on-navi-32-package

Maybe something to the theory that it could be similar to the W7800 in terms of specs. This would suggest but with some cost optimisations from a smaller package and fewer MCDs physically present.
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Very interesting and also explains why it takes them so long. They might have realised that a Navi 32 based 7800(XT) would not be very competitive and that there'd be too much room between that SKU and the 7900XT. In that case, we'd hopefully also see that it's a bit faster than the rumors suggest (i.e., about 6950XT level of performance).
 
Andorphine said:
Very interesting and also explains why it takes them so long. They might have realised that a Navi 32 based 7800(XT) would not be very competitive and that there'd be too much room between that SKU and the 7900XT. In that case, we'd hopefully also see that it's a bit faster than the rumors suggest (i.e., about 6950XT level of performance).
Click to expand...

Yeah I think reading between the lines of the rumours at the moment, the full Navi 32 which was originally supposed to be the 7800 XT has become the 7800 and now they're introducing this part as the 7800 XT.

Although to be honest I think making the Navi 32 part a "7800" of any kind is a bit of naming inflation on AMD's part in the first place.
 
Lightnix said:
Yeah I think reading between the lines of the rumours at the moment, the full Navi 32 which was originally supposed to be the 7800 XT has become the 7800 and now they're introducing this part as the 7800 XT.

Although to be honest I think making the Navi 32 part a "7800" of any kind is a bit of naming inflation on AMD's part in the first place.
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Yes, the 60CU model should be a 7700 XT. Could be a great card if priced reasonably.
 
Lightnix said:
This is interesting: https://www.techpowerup.com/310420/...-new-asic-with-navi-31-gcd-on-navi-32-package

Maybe something to the theory that it could be similar to the W7800 in terms of specs. This would suggest but with some cost optimisations from a smaller package and fewer MCDs physically present.
Click to expand...

AMD Radeon RX 7800 XT will be a much-needed performance-segment addition to the company's Radeon RX 7000-series, which has a massive performance gap between the enthusiast-class RX 7900 series, and the mainstream RX 7600. A report by "Moore's Law is Dead" makes a sensational claim that it is based on a whole new ASIC that's neither the "Navi 31" powering the RX 7900 series, nor the "Navi 32" designed for lower performance tiers, but something in between. This GPU will be AMD's answer to the "AD103." Apparently, the GPU features the same exact 350 mm² graphics compute die (GCD) as the "Navi 31," but on a smaller package resembling that of the "Navi 32." This large GCD is surrounded by four MCDs (memory cache dies), which amount to a 256-bit wide GDDR6 memory interface, and 64 MB of 2nd Gen Infinity Cache memory.

The GCD physically features 96 RDNA3 compute units, but AMD's product managers now have the ability to give the RX 7800 XT a much higher CU count than that of the "Navi 32," while being lower than that of the RX 7900 XT (which is configured with 84). It's rumored that the smaller "Navi 32" GCD tops out at 60 CU (3,840 stream processors), so the new ASIC will enable the RX 7800 XT to have a CU count anywhere between 60 to 84. The resulting RX 7800 XT could have an ASIC with a lower manufacturing cost than that of a theoretical Navi 31 with two disabled MCDs (>60 mm² of wasted 6 nm dies), and even if it ends up performing within 10% of the RX 7900 XT (and matching the GeForce RTX 4070 Ti in the process), it would do so with better pricing headroom. The same ASIC could even power mobile RX 7900 series, where the smaller package and narrower memory bus will conserve precious PCB footprint.
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claim that it is based on a whole new ASIC that's neither the "Navi 31" powering the RX 7900 series, nor the "Navi 32"
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This doesn't make much sense.


Apparently, the GPU features the same exact 350 mm² graphics compute die (GCD) as the "Navi 31," but on a smaller package resembling that of the "Navi 32."
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The contradiction, oh.... and Its 304mm

so the new ASIC will enable the RX 7800 XT to have a CU count anywhere between 60 to 84.
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Right so its the same logic die as Navi 31, its not "a whole new ASIC" its Navi 31 with 4 Memory MCD's


The 7900XTX has 96 CU's
The 7900XT 84

Between 60 and 84 is probably 70, Or in other words the Pro W7800 which is a 70 CU 256Bit Navi 31 card, that's what it is, its a #### 7800.

Didn't i say this was the RX 7800XT? didn't i say that?

Good Grief.... :rolleyes:

www.techpowerup.com

AMD Radeon PRO W7800 Specs

AMD Navi 31, 2499 MHz, 4480 Cores, 280 TMUs, 128 ROPs, 32768 MB GDDR6, 2250 MHz, 256 bit
www.techpowerup.com www.techpowerup.com
 
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humbug said:
This doesn't make much sense.



The contradiction, oh.... and Its 304mm



Right so its the same logic die as Navi 31, its not "a whole new ASIC" its Navi 31 with 4 Memory MCD's


The 7900XTX has 96 CU's
The 7900XT 84

Between 60 and 84 is probably 70, Or in other words the Pro W7800 which is a 70 CU 256Bit Navi 31 card, that's what it is, its a #### 7800.

Didn't i say this was the RX 7800XT? didn't i say that?

Good Grief.... :rolleyes:

www.techpowerup.com

AMD Radeon PRO W7800 Specs

AMD Navi 31, 2499 MHz, 4480 Cores, 280 TMUs, 128 ROPs, 32768 MB GDDR6, 2250 MHz, 256 bit
www.techpowerup.com www.techpowerup.com
Click to expand...


Yeah the use of the terminology "ASIC" is weird in the first place given GPUs are no longer "application specific" in any meaningful sense and haven't been since at least 2006, irrespective of it not being a new die as such.

I just put that down to crappy reporting and assuming they just mean a new MCM package config. Still interesting if the design is flexible enough to accommodate that, especially since the 7900 XT just has a deactivated MCD floating around on it.
 
humbug said:
[..]

Right so its the same logic die as Navi 31, its not "a whole new ASIC" its Navi 31 with 4 Memory MCD's


The 7900XTX has 96 CU's
The 7900XT 84

Between 60 and 84 is probably 70, Or in other words the Pro W7800 which is a 70 CU 256Bit Navi 31 card, that's what it is, its a #### 7800.

Didn't i say this was the RX 7800XT? didn't i say that?

Good Grief.... :rolleyes:

www.techpowerup.com

AMD Radeon PRO W7800 Specs

AMD Navi 31, 2499 MHz, 4480 Cores, 280 TMUs, 128 ROPs, 32768 MB GDDR6, 2250 MHz, 256 bit
www.techpowerup.com www.techpowerup.com
Click to expand...

RX 7800XT being a Pro W7800 with 16GB instead of 32GB would make more sense from a tech standpoint, i.e. it's tech that exists and the full Navi 32 (60 CU) would be a laughing stock as a 7800XT. But if AMD can sell the 32GB version of that card at $4000 (MSRP for a Pro W7800), they're not going to want to sell a 16GB version at even inflated consumer prices. It would be significantly worse than the 7900XT (same GPU, 84CU vs 70CU) so it would have to be offered for sale for significantly less than a 7900XT. Which is down to ~$720 now and still selling badly. $600 for the 16GB version vs $4000 for the 32GB version, when that extra 16GB costs $30. At best, they'd still sell badly. At worst, they'd reduce sales of the vastly more profitable 32GB version. They can impose an artificial barrier by making sure the pro drivers don't work on the 16GB version, but I think some businesses would accept the consumer drivers in exchange for an 85% cost reduction.

AMD borked their RDNA3 consumer lineup when they deliberately mislabelled the actual 7800XT as the 7900XT so they could inflate the price for it. The actual 7900XT could be mislabelled as the 7900XTX(YZABC...just make something up), but it left them with nothing to put below that. They've sort of got something for the bottom end, but it's worse than last gen at the same price and they've got nothing at all for anything else in the lineup. Although a 60 CU Navi 32 would probably work as a 7700XT.

I wouldn't be surprised if the 7800XT is delayed and delayed and then finally slipped out quietly as a paper launch with very little product and/or at a price just under the 7900XT so nobody wants one anyway.
 
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Angilion said:
RX 7800XT being a Pro W7800 with 16GB instead of 32GB would make more sense from a tech standpoint, i.e. it's tech that exists and the full Navi 32 (60 CU) would be a laughing stock as a 7800XT. But if AMD can sell the 32GB version of that card at $4000 (MSRP for a Pro W7800), they're not going to want to sell a 16GB version at even inflated consumer prices. It would be significantly worse than the 7900XT (same GPU, 84CU vs 70CU) so it would have to be offered for sale for significantly less than a 7900XT. Which is down to ~$720 now and still selling badly. $600 for the 16GB version vs $4000 for the 32GB version, when that extra 16GB costs $30. At best, they'd still sell badly. At worst, they'd reduce sales of the vastly more profitable 32GB version. They can impose an artificial barrier by making sure the pro drivers don't work on the 16GB version, but I think some businesses would accept the consumer drivers in exchange for an 85% cost reduction.

AMD borked their RDNA3 consumer lineup when they deliberately mislabelled the actual 7800XT as the 7900XT so they could inflate the price for it. The actual 7900XT could be mislabelled as the 7900XTX(YZABC...just make something up), but it left them with nothing to put below that. They've sort of got something for the bottom end, but it's worse than last gen at the same price and they've got nothing at all for anything else in the lineup. Although a 60 CU Navi 32 would probably work as a 7700XT.

I wouldn't be surprised if the 7800XT is delayed and delayed and then finally slipped out quietly as a paper launch with very little product and/or at a price just under the 7900XT so nobody wants one anyway.
Click to expand...
This totally. I’m happy with my 7900 (7800/7800xt) XT as I got it for a decent price but this has made it difficult for them to insert lower tiers without making them look worse to RDNA2
 
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