AMD Navi 23 ‘NVIDIA Killer’ GPU Rumored to Support Hardware Ray Tracing, Coming Next Year

BS Dave · 27 Sep 2020 at 18:03

humbug said:
I doubt the 6700XT is 6GB, IMO its 12GB.

There will be a 6600XT with a 128Bit bus with 8GB.

All these GPU's will have a large L4 Cache to make up for the lack of memory bandwidth.

Other leaks have the 6700XT at 2.5Ghz, the 6900XT at 2.2Ghz.

Speculation:

5700XT 2560 Shaders @ 1900Mhz.

6700XT 2560 Shaders +10% IPC @ 2500Mhz +31.5% (+41.5% Total) =2080TI after scaling.

6800XT 3840 Shaders +10% IPC, +50% Shaders @ 2350Mhz +23.5% (+83.5 Total) =3080 after scaling.

6900XT 5120 Shaders +10% IPC, +100% Shaders @ 2200Mhz +16% (126% Total) =3090+ after scaling

Choo! Choo!!

gpuerrilla · 27 Sep 2020 at 18:13

humbug said:
I doubt the 6700XT is 6GB, IMO its 12GB.

There will be a 6600XT with a 128Bit bus with 8GB.

All these GPU's will have a large L4 Cache to make up for the lack of memory bandwidth.

Other leaks have the 6700XT at 2.5Ghz, the 6900XT at 2.2Ghz.

Speculation:

5700XT 2560 Shaders @ 1900Mhz.

6700XT 2560 Shaders +10% IPC @ 2500Mhz +31.5% (+41.5% Total) =2080TI after scaling.

6800XT 3840 Shaders +10% IPC, +50% Shaders @ 2350Mhz +23.5% (+83.5 Total) =3080 after scaling.

6900XT 5120 Shaders +10% IPC, +100% Shaders @ 2200Mhz +16% (126% Total) =3090+ after scaling

Chuga-chugga-chugga-wooo-wooooop

TheRealDeal · 27 Sep 2020 at 18:17

4K8KW10 said:
The Radeon VII HBM2 16 GB VRAM is AMD's top card. RX 5700 XT came close to it because of the mess that the RTG currently is.
Everything is borked in that division.

In newer games the 5700xt seems to be faster so top card for me. No way i would go gcn over rdna these days for the same price.

HRL · 27 Sep 2020 at 18:17

BS Dave said:
Choo! Choo!!

Yep, it’s like the RX480 launch all over again.

That was touted as clocking way higher than it actually ended up doing.

Fingers crossed for AMD they’ve got it right this time!

Tom|Nbk · 27 Sep 2020 at 18:17

It looks like the hype train for AMD is getting going. October is going to be interesting.

humbug · 27 Sep 2020 at 18:19

TheRealDeal said:
You guys are assuming that the 6700xt is aimed at the same market as the 5700xt which was pretty much AMDs top card. If the 6700xt is now a £250 card then 6gb ain't so bad.

With 2080TI like performance....

Why not just have a 3GB 2080TI at £200, same logic right?

HRL said:
Yep, it’s like the RX480 launch all over again.

Only if you take speculation as gospel.

shankly1985 · 27 Sep 2020 at 18:28

I honestly can't see why 80cu isn't going to happen. Nvidia knows what amd is bringing hence the price tag of the 3080.
RDNA2 will be faster than 3080 but how much remains to be seen.

humbug · 27 Sep 2020 at 18:31

I have the impression that some people think Ampere is some untouchable 7'th wonder, it isn't, mathematically its not actually all that good.

TheRealDeal · 27 Sep 2020 at 18:34

humbug said:
With 2080TI like performance....

Why not just have a 3GB 2080TI at £200, same logic right?

Only if you take speculation as gospel.

You just went full retard though. Nvidia are only offering a 3070 with 8gb at £460 so 6gb would be reasonable in the £2-300 range but not the £300+ range. All i was trying to get across is we have no idea what price range or where this card is aimed at. With 6gb it clearly would not be aimed at the 5700xt market.

A 2080ti 3gb man lol it's not even close to what i was suggesting.

gpuerrilla · 27 Sep 2020 at 18:39

humbug said:
I have the impression that some people think Ampere is some untouchable 7'th wonder, it isn't, mathematically its not actually all that good.

Be careful, impressions.

HRL · 27 Sep 2020 at 18:44

humbug said:
I have the impression that some people think Ampere is some untouchable 7'th wonder, it isn't, mathematically its not actually all that good.

Performance is alright, it’s the pricing that’s not.

£650 for a 3080 is fine, £850-900 would have been a better price for the 3090.

I really hope AMD pull out all the stops this release. Offer a better card than a 3090 and I’ll snap one up.

Hedge · 27 Sep 2020 at 18:46

humbug said:
I have the impression that some people think Ampere is some untouchable 7'th wonder, it isn't, mathematically its not actually all that good.

at £650 its good.

At north of £800 it becomes somewhat meh!.

I almost fell for the hype then I realised that generational leaps between GPUs should be like this anyway. It shouldn't impress us at all really.

edit: seems the guy above me said exactly same thing.

CAT-THE-FIFTH · 27 Sep 2020 at 18:59

The GTX280 and GTX480 had around 20% more memory bandwidth than the HD4870 and HD5870,but both got relatively close to the them in performance. So in theory AMD could potentially get close to a RTX3080 with a 256 bit bus,if they made a large improvement to the memory and cache systems in RDNA2 GPUs. However,I am uncertain whether such a cache system exists,and such a relatively narrow memory bus,as the consoles don't seem to implement them. It would also mean AMD would have to beat Nvidia in memory bandwidth efficiency.

Blackjack Davy · 27 Sep 2020 at 19:00

HRL said:
I really hope AMD pull out all the stops this release. Offer a better card than a 3090 and I’ll snap one up.

If they pull that one off everyone will want one. Well anyone with any sense at anyrate. If it happens I'll eat my hat though.

So far the only indications (MLID) is thats "within striking distance of the 3080" and "easily exceeds the 2070". Thats to say it almost matches the 3080 not the 3090.

The hype train is hitting shinkansen speeds and its not even AMD doing it its people doing it to themselves.

gpuerrilla · 27 Sep 2020 at 19:03

HRL said:
Performance is alright, it’s the pricing that’s not.

Hedge said:
I almost fell for the hype then I realised that generational leaps between GPUs should be like this anyway. It shouldn't impress us at all really.

edit: seems the guy above me said exactly same thing.

OK so seems there is some consistency that the performance uplift is normal/expected then and @humbug is correct in his statement.

£650 is a good price, definitely where it should be and stay. Once you creep over £700 its back to good old nvidia.

CAT-THE-FIFTH · 27 Sep 2020 at 19:04

Blackjack Davy said:
If they pull that one off everyone will want one. Well anyone with any sense at anyrate. If it happens I'll eat my hat though.

So far the only indications (MLID) is thats "within striking distance of the 3080" and "easily exceeds the 2070". Thats to say it almost matches the 3080 not the 3090.

The hype train is hitting shinkansen speeds and its not even AMD doing it its people doing it to themselves.

Agreed,then even if AMD matches the RTX3080 it will be deemed a failure!

humbug · 27 Sep 2020 at 19:06

TheRealDeal said:
You just went full retard though. Nvidia are only offering a 3070 with 8gb at £460 so 6gb would be reasonable in the £2-300 range but not the £300+ range. All i was trying to get across is we have no idea what price range or where this card is aimed at. With 6gb it clearly would not be aimed at the 5700xt market.

A 2080ti 3gb man lol it's not even close to what i was suggesting.

So your argument is a 5700XT + 30% should be a 6GB £300 card? Would you buy that? Would you buy a GPU with 30% higher performance than an 8GB 5700XT with only 6GB of VRam for £300?

I wouldn't. It wouldn't run anything above 1080P.

How about AMD put 12GB of VRam on it and sell it for £400? Would that make more sense?

TheRealDeal · 27 Sep 2020 at 19:11

humbug said:
So your argument is a 5700XT + 30% should be a 6GB £300 card? Would you buy that? Would you buy a GPU with 30% higher performance than an 8GB 5700XT with only 6GB of VRam for £300?

I wouldn't. It wouldn't run anything above 1080P.

How about AMD put 12GB of VRam on it and sell it for £400? Would that make more sense?

Many people would buy that don't you think? M budget this round is around £600 so not aimed at me.

humbug · 27 Sep 2020 at 19:14

TheRealDeal said:
Many people would buy that don't you think?

No, i don't, i really don't, a card like that is a huge amount of muscle, that's an entry level 4K card and 6GB is 1080P limiting, with 6GB it has a ridiculous amount of wasted horse power. its wildly unbalanced.

Not to mention the £100 per card AMD will be flushing down the toilet by making a GPU with that much grunt a 6GB card.

Nablaoperator · 27 Sep 2020 at 19:17

g67575 said:
The ROP count (listed on techpowerup) for the series X is just an estimate, Microsoft haven't confirmed the ROP count. Could easily be 64.

I think 128 is quite unlikely for RDNA 2, only Tesla GPUs have had that many in the past. 112 is the ROP count of the RTX 3090.

Xbox one x targeted a peak of 4k supported by a fill rate of 37.5 gpixels/s
Xbox series x is targeting a peak of 8k which would mean it requires 37.5*4 or 150 gpixels/s .At 1.825ghz clk that would work out to approx 82 ROPs