AMD's Radeon RX 7900 GRE Gets Benchmarked

[watzupken]

Chiplets don't seem to be working out so great for GPUs... hope they can sort whatever the issues are out.

I feel we can't conclude this soon. This is pretty much the first gen, so just like the Ryzen 3xxx series that debuted the chiplet design, it will take a few iterations to see meaningful improvements. There will be added latencies with chiplet design, which is an inherent issue. But again, Zen 3 and 4 pretty much made is a non-issue and Zen 3 sold very well.

 

[Chaitanya]

I hope it's not a case of "crap, chiplet GPU doesn't work, let's cancel Navi 32, and release something fast".

Given they stuck with Chiplet philosophy on CPUs and it certainly seems to be the future(even Apple is using similar concept for their Macs), hoping its just learning the compromises that come with this design.

 

[AnotherReader]

I hope it's not a case of "crap, chiplet GPU doesn't work, let's cancel Navi 32, and release something fast".

The early benchmarks for this card are concerning. It has most of the resources of a 7900 XT, but the smaller cache makes it much slower than the next step up the ladder. AMD's specifications indicate lower clock speeds, but we won't know for sure until reviewers get their hands on it.

 

[HisDivineOrder]

Nothing but 7900's as far as the eye can see...

AMD saw what Nvidia did with the 4080 12GB and figured the only mistake they made was not releasing it.

 

[sLowEnd]

Nothing but 7900's as far as the eye can see...

AMD saw what Nvidia did with the 4080 12GB and figured the only mistake they made was not releasing it.

We're not quite at X800 levels of variants yet

TechPowerUp

Graphics card and GPU database with specifications for products launched in recent years. Includes clocks, photos, and technical details.

www.techpowerup.com

 

[Minus Infinity]

Wow this augers really badly for the N32 based 7800. This GRE card should be a lot stronger than a 6800XT. I'm guessing the 7800 will perform like a 6700 repalcement and of course that's what it really should be marketed as, a 7700XT.

What a woeful update RDNA3 has turned out to be IMO. Oh well Battlemage better offer some competition next year or we are all screwed.

 

[Phoenix Nano]

This article opinion and closing thoughts should be redone with the update
While not ideal at $650 (should be $600), this card is much better deal than either the $600 RTX 4070 which it surpasses by a mile (authors own words) and the $800 RTX 4070Ti which it trades blows with in rasterized performance and only 12GBVRAM.

The early benchmarks for this card are concerning. It has most of the resources of a 7900 XT, but the smaller cache makes it much slower than the next step up the ladder. AMD's specifications indicate lower clock speeds, but we won't know for sure until reviewers get their hands on it.

Proportional to the amount of CUs it has the same amount of IC as full Navi31, 1MB per CU
7900 XTX: 96CUs and 96MB IC
7900 GRE: 80CUs and 80MB IC
GRE is just Navi31 with one SE disabled so the backend/frontend supporting the card should be the same proportional to the amount of CUs

GPU core & memory clock speeds slight downgrade is about its about the only reduction that could impact performance scaling
Never mind, im blind apparently as the 7900GRE indeed has only 64MB IC giving it 80% the amount of IC per CU: 0.8MB per CU

Wow this augers really badly for the N32 based 7800. This GRE card should be a lot stronger than a 6800XT. I'm guessing the 7800 will perform like a 6700 repalcement and of course that's what it really should be marketed as, a 7700XT.

What a woeful update RDNA3 has turned out to be IMO. Oh well Battlemage better offer some competition next year or we are all screwed.

No... If you look at the specs its easy to understand why the 7900GRE performance scales badly relative to the number of CUs.
It has only 64MB IC for 80CUs, lower clocked memory chips and GPU clocks

The 7800 will have 64MB IC for 60CUs, same memory clocks to feed less CUs and faster core clocks. 7800 will most likely perform on par with the 6800 XT with a few percentage wins here and there

 

[AusWolf]

I mean, if they thought the card was any good they wouldn't only be selling it in one country.

Not necessarily. This card is based on a seriously cut-down chip. Maybe there isn't enough failures in production to supply the whole world, and they would rather sell the more expensive models in higher numbers.

 

[siluro818]

Not necessarily. This card is based on a seriously cut-down chip. Maybe there isn't enough failures in production to supply the whole world, and they would rather sell the more expensive models in higher numbers.

That's almost certainly the case here. The Navi 31 GCD is barely bigger than that of Navi 22. Failure rate should be very low indeed.

 

[Zareek]

OMG, GRE that may actually be the absolute worst naming convention ever!

 

[SunWukong]

Price it at $550 and you have a winner.

 

[A Computer Guy]

Why all interesting hardware has to be exclusive to some region? The Chinese have had multiple interesting parts and the R5 5600X3D is an USA exclusive.

This could be a sea-aye-ay special edition GPU?

Going by AMD's specifications, the clock speeds are expected to be lower than the 7900 XT. However, their page also shows lower frequencies for the 7900 XT when compared to the 7900 XTX and the claimed difference is far more than what is seen in practice.

View attachment 306616

AMD missed a prime marketing opportunity: should of done 88 compute units and 88 ray accelerators

 

[ARF]

AMD missed a prime marketing opportunity: should of done 88 compute units and 88 ray accelerators

If they use defective dies for the SKU, then they have limitations about the specifications.

The card is definitely nothing interesting or exciting, so no surprise that it doesn't launch in all countries.

 

[ToTTenTranz]

I dunno, those generations of cards where they just renamed the previous generation and boosted clocks a few percent were pretty bad. This latest round we got actual new products, but they just ain't that impressive. If AMD had called the 7900 series the 7800 series and priced them accordingly, it would be a different story, but they clearly got nothing above Navi 31 to throw at us.

But those refreshes (like GTX680 vs GTX770) would happen within a year of the original GPUs' release. This is a whole new architecture launched 2.5 years later.

 

[AnotherReader]

But those refreshes (like GTX680 vs GTX770) would happen within a year of the original GPUs' release. This is a whole new architecture launched 2.5 years later.

RDNA 3 was launched 2 years after RDNA2 which is in line with previous new architectures.

 

[Darmok N Jalad]

But those refreshes (like GTX680 vs GTX770) would happen within a year of the original GPUs' release. This is a whole new architecture launched 2.5 years later.

Look back to the G92. Started out as the GeForce 8800 GTS, then the GTX 9800, then the GTS 250. There was a die shrink in there, but basically the same card for 3 gens.

 

[AirplaneA1]

The Year of the Rabbit is determined based on the traditional Chinese calendar, and the "Rabbit" in the zodiac corresponds to the "Mao" in the twelve earthly branches. The Year of the Rabbit is also known as the "Mao" year(卯年), and every twelve years serves as a cycle. For example, the year 2023 in the Gregorian calendar corresponds to the Year of the Rabbit, which is the year of Guimao(癸卯年).
AMD is focused on the Chinese market, so it will try to adopt a name with Chinese characteristics. "GRE" does not mean Graduate Record Examination, but rather "Golden Rabbit Edition", as this is the Year of the Rabbit in the traditional Chinese calendar. Similarly, AMD used to have the RX 590 GME, which means "Golden Mouse Edition" because 2020 is the Year of the Rat.