OcUK RTX4070 review thread

[kieran_read]

Looking at TPU there is some interesting discrepancies in their own data.

Navi 32 is listed as:

4096 Shaders
4X Mem chiplets (256Bit Bus)

AMD Navi 32 GPU Specs

3840 Cores, 192 TMUs, 128 ROPs

www.techpowerup.com

And yet for the 7800XT, which is supposed to be the full fat Navi 32 they list it as:

3840 Shaders
192Bit Bus (3X Mem chiplets)

Which is it? I very much doubt the 7800XT only as a 192Bit Bus, also 12GB VRam.

So if any one of them a re true its the first one.

So... the
6800XT: 4608 Shaders at 2250Mhz boost, 16GB/s Memory ICs, 256Bit.
7800XT: 4096 shaders at 2800Mhz boost, 18GB/s Memory ICs, 256Bit.

6800XT has 12% more shaders
7800XT has a 24% higher clock
7800XT has 12% higher memory bandwidth.

The 7800XT is 89% of the 6800XT, add 24% higher clocks = 110% + 12% higher memory bandwidth = 124%

So the 7800XT should be a 15% to 20% faster GPU assuming some scaling loss.

That should put the 7800XT about here....

Gonna depend on what they price it at, my biggest concern is that they will list the prices at around 650-700 which is too close to the 7900xt. If they do that the pricing of their stack will all just be too close to each other. Ideally i'd like to see it at 400-500 but that's the ideal world, reality i think they will put it at a similar price to Nvidia.

It will just end up being the same as every other stack, people will just buy Nvidia because they have won in the RT and DLSS advertising war..

 

[kieran_read]

time to dig out my wafers and costs speculation spreadsheet again.

Die sizes and rough yields are pretty simple. I think I filled this before TPU updated their database with the CU die being 304mm²

AMD Navi 31 GPU Specs

6144 Cores, 384 TMUs, 192 ROPs

www.techpowerup.com

Anyway, ignoring those few mm², I got something like this:

If we ignore packaging costs, then compared to Navi21 (if wafers were the same price), then Navi31's cost is far closer to Navi22 than Navi21.

Plenty of scope to cut prices as long as they are not packaging constrained.

Packaging costs will be about 2 times what they were before.

Edit: I think i misread that i was thinking about literal packaging like the box it comes in

 

[KompuKare]

Packaging costs will be about 2 times what they were before.

Edit: I think i misread that i was thinking about literal packaging like the box it comes in

I'm sure that had gone up too!

Packing a chiplet GPU should be more expensive but really AMD have now been doing this since Zen 2 so they must be the world expert on this.

Point still stands: compared to monolith, this chiplet GPU should be far cheaper to make. Hence why going chiplet is the holy grail of GPUs.

 

[O.Giroud]

I dont see why buy a 4070 when for the same price people can buy a 7900XT ?
Where is the logic ?

 

[CAT-THE-FIFTH]

4/5 Months from now? Good Grief.... 2023 is nearing its end at that point, Navi 33 in January 2024?

Navi 33 is already out as the RX7600S in laptops,which seems very competitive with the laptop RTX4060 it appears.

 

[Gibbo]

I dont see why buy a 4070 when for the same price people can buy a 7900XT ?
Where is the logic ?

Where can you buy a 7900XT for £579?
7900 XT cost over £200 more!

 

[Grim5]

Where can you buy a 7900XT for £579?
7900 XT cost over £200 more!

Not sure about that user though the username sounds French , but I'm in Australia and the 4070 here is being sold for $1200 and the 7900xt is frequently discounted down to $1200. GPU prices here are usually whatever the USD price is times two so the 7900xt should be $1600 but for some reason it's being getting discounted by several hundred dollars several times in the last couple months - maybe AMD has being doing discounts only available in this part of the world

 

[SpellowHouse]

It absolutely disgusts me how NVIDIA are taking advantage of their virtual monopoly in the market. Not only are they cranking the prices up as high as they can go but they are offering absolutely miserable products with built in performance limits and obsolescence, and they just don't give a damn that we KNOW they are ripping us off. I have never seen the like of this before. I would be ashamed to be a part of that company.

More shame on AMD for not wiping the floor with them.

 

[ICDP]

Where can you buy a 7900XT for £579?
7900 XT cost over £200 more!

You know fine well he means anyone looking at the top end 4070s. You get into 4070Ti and 7900XT price territory. £60 more, or less than 10% extra price gets you a GPU that is 25% - 30% faster.

 

[Jono8]

You know fine well he means anyone looking at the top end 4070s. You get into 4070Ti and 7900XT price territory. £60 more, or less than 10% extra price gets you a GPU that is 25% - 30% faster.

But that's a bogus comparison. Always compare cheapest available for cheapest available. I can find 7900xts for sale for nearer £1000 as well.

 

[JediFragger]

Not sure about that user though the username sounds French

 

[GoogalyMoogaly]

You know fine well he means anyone looking at the top end 4070s. You get into 4070Ti and 7900XT price territory. £60 more, or less than 10% extra price gets you a GPU that is 25% - 30% faster.

Na, top end 7900XTs are well over £900 while top end 4070s are £750.
Unless you're talking about top end 4070s but low end 7900s, but that seems odd, why would someone that would only consider a top end 4070 suddenly be happy with the cheapest 7900XT?
I mean using that logic why would you buy a 7900XTX when a 4090 can be had for the same price (most expensive 7900XTX Vs cheapest 4090)?

 

[ICDP]

Because a low end 4070Ti or 7900XT is always going to be faster than a top end 4070. It’s a simple case of value for money and paying £200 over the odds on any GPU has alway been poor value for money.

 

[GoogalyMoogaly]

But why go for a high end 4070?
If you're someone that has to go high end then you won't buy a cheap 7900XT surely?
Why different rules for the 4070?

 

[Ayahuasca]

But why go for a high end 4070?
If you're someone that has to go high end then you won't buy a cheap 7900XT surely?
Why different rules for the 4070?

People love making up dodgy comparisons on every release.

 

[Jono8]

Because a low end 4070Ti or 7900XT is always going to be faster than a top end 4070. It’s a simple case of value for money and paying £200 over the odds on any GPU has alway been poor value for money.

But it's still a nonsensical comparison.

You can get a 4070 for £579.

 

[BigBANGtheory]

oh wow some of them are £700 or more, wut da heck

 

[Aretak]

oh wow some of them are £700 or more, wut da heck

Asus leading the way as usual. I've seen the TUF OC as high as £750 elsewhere, although it's tied with the Gigabyte Master at a bargain £700 on OcUK. And the TUF is their mid-tier option. Nowhere seems to be listing the Strix yet, but it'll be at least another £50 on top of that.

 

[SpellowHouse]

But why go for a high end 4070?
If you're someone that has to go high end then you won't buy a cheap 7900XT surely?
Why different rules for the 4070?

The man in the kitchen told me it would solve the problem with my sex life and make me rich and make my hair grow again. It will, right?

People buy NVIDIA because it is NVIDIA.

 

[Gibbo]

Hi there

For those unsure, the 16-pin (12V) connector cards on OcUK are:

Gainward Phoenix
Gainward Phoenix GS
Gigabyte Gaming OC
Gigabyte Aero OC
Gigabyte Aorus Master
Inno3D iChill X3
MSI Gaming X Trio
Palit GamingPro
Palit GamingPro OC
Zotac AMP Airo

I do expect an Asus Strix to make an appearance at somepoint at a no doubt bonkers price.
I have also since gone through all the OC models and made sure we have no cards exceeding £700 !

Not sure on power limits but the 16-pin cards seem to vary between 200-260W, this should aid in boost clocks and overclocking, but as always the silicon lottery is the biggest factor!

I would personally just buy the cheapest card available, if your contemplating spending near £700 then buy a 4070Ti or a 7900 XT for the little extra it cost for a solid 20% performance boost.