It looks like the 'real' /affordable RDNA3 + next gen NV desktop launch won't launch until September. Thoughts?

timorous · 3 May 2023 at 15:53

Unless N33 clocks really high I don't see it being used in a product named 7700XT. It would need to offer 6800 level performance at worst and I just don't see it at all from the laptop N33 reviews dotted around.

Personally I think the following stack could work and it would sell well.

Name	Die	Config	Raster Perf Target approx	Cost
7800XT	N32	60CU + 4 MCD. 16GB 20gbps ram	AIB 6950XT / 4070Ti	$600 ($550 if they want to be aggressive)
7700XT	N32	48CU + 4 MCD. 16GB 18gbps ram	6800XT / 4070	$500 ($450 if they want to be aggressive)
7600XT	N32	40CU + 3 MCD. 12GB 18gbps ram	6800 / 3070Ti	$400 ($350 if they want to be aggressive)
7500XT	N33	32CU. 8GB 18gbps ram	6700 / 3060Ti	$280 ($250 if they want to be aggressive)

Even with that pricing it is not exactly a huge improvement over the outgoing cards.

CAT-THE-FIFTH · 3 May 2023 at 15:58

timorous said:
Unless N33 clocks really high I don't see it being used in a product named 7700XT. It would need to offer 6800 level performance at worst and I just don't see it at all from the laptop N33 reviews dotted around.

Personally I think the following stack could work and it would sell well.

Name Die Config Raster Perf Target approx Cost
7800XT N32 60CU + 4 MCD. 16GB 20gbps ram AIB 6950XT / 4070Ti $600 ($550 if they want to be aggressive)
7700XT N32 48CU + 4 MCD. 16GB 18gbps ram 6800XT / 4070 $500 ($450 if they want to be aggressive)
7600XT N32 40CU + 3 MCD. 12GB 18gbps ram 6800 / 3070Ti $400 ($350 if they want to be aggressive)
7500XT N33 32CU. 8GB 18gbps ram 6700 / 3060Ti $280 ($250 if they want to be aggressive)

Even with that pricing it is not exactly a huge improvement over the outgoing cards.

Even if it clocked to 3GHZ,it will be literally an RX6700XT in core TFLOPs. So at best AMD could sell it as an RX7600XT 16GB.

gpuerrilla · 3 May 2023 at 16:03

All I seen was 'about as good as a 6700' and with 8GB vram its doa imo.

Although, if we go by the past couple of days on the really really important power consumption feature that is now the main thing.. it should be popular!

Jono8 · 3 May 2023 at 16:03

timorous said:
Unless N33 clocks really high I don't see it being used in a product named 7700XT. It would need to offer 6800 level performance at worst and I just don't see it at all from the laptop N33 reviews dotted around.

Personally I think the following stack could work and it would sell well.

Name Die Config Raster Perf Target approx Cost
7800XT N32 60CU + 4 MCD. 16GB 20gbps ram AIB 6950XT / 4070Ti $600 ($550 if they want to be aggressive)
7700XT N32 48CU + 4 MCD. 16GB 18gbps ram 6800XT / 4070 $500 ($450 if they want to be aggressive)
7600XT N32 40CU + 3 MCD. 12GB 18gbps ram 6800 / 3070Ti $400 ($350 if they want to be aggressive)
7500XT N33 32CU. 8GB 18gbps ram 6700 / 3060Ti $280 ($250 if they want to be aggressive)

Even with that pricing it is not exactly a huge improvement over the outgoing cards.

I just feel like they might gimp the 7800xt a bit more than that, especially if they price it at $550, due to where the 7900xt sits. I wonder if they might gear it more towards 6900xt or 3090 performance so it stays a good 20% slower than the 7900xt.

timorous · 3 May 2023 at 16:12

Jono8 said:
I just feel like they might gimp the 7800xt a bit more than that, especially if they price it at $550, due to where the 7900xt sits. I wonder if they might gear it more towards 6900xt or 3090 performance so it stays a good 20% slower than the 7900xt.

I don't think they will do that unless N32 simply does not have the performance.

7900xt can come down in price or they can launch 7950xt/XTX refreshes at the same time to improve performance and maintain current pricing.

At $550-$600 the 7800XT would be an excellent margin part for AMD so cannibalising 7900XT would not really hurt their bottom line either.

Jono8 · 3 May 2023 at 16:19

timorous said:
I don't think they will do that unless N32 simply does not have the performance.

7900xt can come down in price or they can launch 7950xt/XTX refreshes at the same time to improve performance and maintain current pricing.

At $550-$600 the 7800XT would be an excellent margin part for AMD so cannibalising 7900XT would not really hurt their bottom line either.

Hm, i just can't see them refreshing/righting off the 7900 models so quickly. They've only been out 4/5 months.

I think its far more likely they will slot the 7800xt in at 20% slower than the XT for ~$600. That still means it beats the 4070 at the same price, which is probably all they will worry about.

CAT-THE-FIFTH · 3 May 2023 at 16:41

Jono8 said:
Hm, i just can't see them refreshing/righting off the 7900 models so quickly. They've only been out 4/5 months.

I think its far more likely they will slot the 7800xt in at 20% slower than the XT for ~$600. That still means it beats the 4070 at the same price, which is probably all they will worry about.

MLID said the current version of Navi 31 has some bugs. So we could see a new stepping released at some point.

g67575 · 3 May 2023 at 17:24

I seriously doubt that's true.

gpuerrilla · 3 May 2023 at 17:38

timorous said:
7900xt can come down in price or they can launch 7950xt/XTX refreshes at the same time to improve performance and maintain current pricing.

Heard this is already in the making.

welshrat · 3 May 2023 at 18:46

Anticipation Builds as AMD Radeon RX 7800 XT Surfaces in Geekbench Benchmark Test

The eagerly awaited AMD Radeon RX 7800 XT has been spotted in a Geekbench benchmark result, fueling speculation about its imminent release. ...

www.guru3d.com

Let's hope this isn't real performance as I can't imagine where the other cards would drop in.

Jono8 · 3 May 2023 at 18:49

welshrat said:
Anticipation Builds as AMD Radeon RX 7800 XT Surfaces in Geekbench Benchmark Test

The eagerly awaited AMD Radeon RX 7800 XT has been spotted in a Geekbench benchmark result, fueling speculation about its imminent release. ...

www.guru3d.com

Let's hope this isn't real performance as I can't imagine where the other cards would drop in.

That seems wrong. I'd expect it to be at least a bit faster than the 6800XT.

welshrat · 3 May 2023 at 18:49

Jono8 said:
That seems wrong. I'd expect it to be at least a bit faster than the 6800XT.

Same here but thought I would post it anyway. Guess we won't have long to find out.

Jono8 · 3 May 2023 at 18:51

gpuerrilla said:
Heard this is already in the making.

That equally looks odd. Why would a 7950XT be slower than a 7900XTX..? That seems like very confusing naming.

g67575 · 4 May 2023 at 02:09

I think the RX 7600 and RX 7600 XT are most likely to be Navi33.

g67575 · 4 May 2023 at 02:13

The latest thing AMD has released is 4nm low power Phoenix GPUs (mobile):

RDNA 3 - Wikipedia

en.wikipedia.org

I wonder if AMD is going to use TSMC's 4nm process for any desktop graphics cards?

The fact that they are already using 4nm for some RDNA3 products, suggests that they are unlikely to use 4nm for RDNA4 (3nm seems more likely).

No desktop Phoenix APUs have been released yet either, maybe they will come next?

g67575 · 4 May 2023 at 09:35

Oh well, at least if the 7600 XT is 32 CUs, it won't be any worse than a 6600 XT:

AMD Radeon RX 6600 XT Specs

AMD Navi 23, 2589 MHz, 2048 Cores, 128 TMUs, 64 ROPs, 8192 MB GDDR6, 2000 MHz, 128 bit

www.techpowerup.com

We know the 7600 is an 8GB card, so it looks likely.

It terms of the performance, the FP32 processing power is about 2x that of the RX 6600 XT:

AMD Radeon RX 7600 Specs

AMD Navi 33, 2655 MHz, 2048 Cores, 128 TMUs, 64 ROPs, 8192 MB GDDR6, 2250 MHz, 128 bit

www.techpowerup.com

Basically, they can get a decent boost compared to Navi23, because the RDNA3 architecture is faster.

humbug · 4 May 2023 at 09:54

g67575 said:
Oh well, at least if the 7600 XT is 32 CUs, it won't be any worse than a 6600 XT:

AMD Radeon RX 6600 XT Specs

AMD Navi 23, 2589 MHz, 2048 Cores, 128 TMUs, 64 ROPs, 8192 MB GDDR6, 2000 MHz, 128 bit

www.techpowerup.com

We know the 7600 is an 8GB card, so it looks likely.

It terms of the performance, the FP32 processing power is about 2x that of the RX 6600 XT:

AMD Radeon RX 7600 Specs

AMD Navi 33, 2655 MHz, 2048 Cores, 128 TMUs, 64 ROPs, 8192 MB GDDR6, 2250 MHz, 128 bit

www.techpowerup.com

Basically, they can get a decent boost compared to Navi23, because the RDNA3 architecture is faster.

TPU put it 10% behind the 6600XT, which is really odd given its specifications are identical only its clocked higher and has faster memory IC's.

g67575 · 4 May 2023 at 09:57

Yup, it makes no sense. Guess they haven't got round to updating it yet.

CAT-THE-FIFTH · 4 May 2023 at 09:59

Navi 33 is an overclocked Navi 23 on 6NM. The FP32 figure is not doubled in practice because AMD did some weird dual issue thing with the shaders.

humbug · 4 May 2023 at 10:02

CAT-THE-FIFTH said:
Navi 33 is an overclocked Navi 23 on 6NM. The FP32 figure is not doubled in practice because AMD did some weird dual issue thing with the shaders.

It says its RDNA3, and it has a 120 watt TDP, the 6600XT is 160 watts.