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[BM.pl] Leaked AMD R9 380X benchmark shows close to R9 290 performance - Page 4

post #31 of 104
Quote:
Originally Posted by Klocek001 View Post

so it's a 7970 ? aka 280X ? Basically this card came out in 2011.
Not the same,just similar performance.
post #32 of 104
Quote:
Originally Posted by GoLDii3 View Post

Not the same,just similar performance.
how's this not the same. 32 rops/2048 sp, only with 4GB now (but on a smaller bus)

would people be buying $450 970s if they were rebranded $250 670s with clock/minor arch improvements which amount to maybe 10-15% performance jump in some games only ? I'd like to have a oc'd 7970 comparison as soon as this card comes out.
Edited by Klocek001 - 10/23/15 at 11:50am
post #33 of 104
Tonga comes with double the raster(same as Hawaii), so any benchmark it tops 280x indicates either a raster, or tesselation bottleneck.
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post #34 of 104
The is the GCN 1.2 Tonga version of the GCN 1.0 Tahiti/7970. Given how the 285 does against the 280X we can expect pretty good gains for the 380X over the 280X

The bus is also different as well since it has delta compression.

It's laregly same configuration but improved architecture. Just like how Sandy to SkyLake is still 4 core+HT on mainstream, but performance is still different. Can't just compare pure hardware configuration to determine performance.
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post #35 of 104
Quote:
Originally Posted by LuckyStarV View Post

The is the GCN 1.2 Tonga version of the GCN 1.0 Tahiti/7970. Given how the 285 does against the 280X we can expect pretty good gains for the 380X over the 280X

The bus is also different as well since it has delta compression.

It's laregly same configuration but improved architecture. Just like how Sandy to SkyLake is still 4 core+HT on mainstream, but performance is still different. Can't just compare pure hardware configuration to determine performance.
http://www.guru3d.com/articles_pages/powercolor_radeon_r9_285_turboduo_review,14.html
7970 is almost identical to 280x and 285, if nothing changes then 380x will be the same. I really don't see anyone can buy this, you will probably be able to CF 7970s for the price of a 380X.
Edited by Klocek001 - 10/23/15 at 12:14pm
post #36 of 104
Quote:
Originally Posted by Klocek001 View Post

http://www.guru3d.com/articles_pages/powercolor_radeon_r9_285_turboduo_review,14.html
7970 is almost identical to 280x and 285, if nothing changes then 380x will be the same. I really don't see anyone can buy this, you will probably be able to CF 7970s for the price of a 380X.

Remember, the 285 has 12.5% less shaders and TMUs compared to the 7970/280X. Also, you have to remember that the 285 clocks like the 7970, about 10% lower than the 7970Ghz/280X and R9 380X.

With all this in mind, I would expect the R9 380X to have a good margin over the R9 280X since both are clocked similarly. Here, we have the Sapphire 285 at 965mhz boost, the 7970 at 925mhz and stock 285 at 918mhz. Keep in mind that the 7970 maintains this speed all the time while the sapphire 285 won;t keep 965 all the time.

The 285 manages to match the 7970 despite fewer shaders/tmus due to the improvements from GCN1.2. I would expect the 380X to have a good showing over the 280X, probably in the 10% range.

That is not to say that getting 2 used 7970 for CFX won't be worth it. Just saying, that this cards makes sense as a 280X replacement. For someone who only buys new, the 380X will be a better choice as 280X stocks dwindle, ofc if AMD prices the card right. It does target the gap between the 906 and 970 right now.
Warning: Spoiler! (Click to show)

Edited by LuckyStarV - 10/23/15 at 12:25pm
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post #37 of 104
Quote:
Originally Posted by Klocek001 View Post

how's this not the same. 32 rops/2048 sp, only with 4GB now (but on a smaller bus)

would people be buying $450 970s if they were rebranded $250 670s with clock/minor arch improvements which amount to maybe 10-15% performance jump in some games only ? I'd like to have a oc'd 7970 comparison as soon as this card comes out.
A few months and retailers won't be selling anymore R9 280X. You can't find them anymore at decent prices where i live.

This card won't be anything more than 250-270 bucks,wich was the price of the R9 280X a few months ago.
Getting into overclock discussion is pointless since all cards can overclock. The 380 was done to be as close as possible to the 7970,and now the 380X will be done to be as close as the R9 290.

Results are there. Got 3400 on 3D11 Extreme with a stock 280X.
post #38 of 104
Quote:
Originally Posted by LuckyStarV View Post

Remember, the 285 has 12.5% less shaders and TMUs compared to the 7970/280X. Also, you have to remember that the 285 clocks like the 7970, about 10% lower than the 7970Ghz/280X and R9 380X.

With all this in mind, I would expect the R9 380X to have a good margin over the R9 280X since both are clocked similarly. Here, we have the Sapphire 285 at 965mhz boost, the 7970 at 925mhz and stock 285 at 918mhz. Keep in mind that the 7970 maintains this speed all the time while the sapphire 285 won;t keep 965 all the time.

The 285 manages to match the 7970 despite fewer shaders/tmus due to the improvements from GCN1.2. I would expect the 380X to have a good showing over the 280X, probably in the 10% range.

That is not to say that getting 2 used 7970 for CFX won't be worth it. Just saying, that this cards makes sense as a 280X replacement. For someone who only buys new, the 380X will be a better choice as 280X stocks dwindle, ofc if AMD prices the card right. It does target the gap between the 906 and 970 right now.
Warning: Spoiler! (Click to show)

I've read a couple of times now that the R9 285 matches the 280x. Where is this coming from? Genuinely confused because I remember when the 285 came out it didnt even outperform the 280 non x and it was generally called a pointless card as it had a GB less VRAM then the 280, which of course is basically a HD7950.

Here's a custom 285 about 10% behind the reference 280x overall.

https://www.techpowerup.com/reviews/Sapphire/R9_285_Dual-X_OC/25.html

What changed? Is it the improved tessellation performance being used more in newer games?
post #39 of 104
Quote:
Originally Posted by Slink3Slyde View Post

I've read a couple of times now that the R9 285 matches the 280x. Where is this coming from? Genuinely confused because I remember when the 285 came out it didnt even outperform the 280 non x and it was generally called a pointless card as it had a GB less VRAM then the 280, which of course is basically a HD7950.

Here's a custom 285 about 10% behind the reference 280x overall.

https://www.techpowerup.com/reviews/Sapphire/R9_285_Dual-X_OC/25.html

What changed? Is it the improved tessellation performance being used more in newer games?
It comes from some specific benchmarks such as Bioshock: Infinite.
https://www.techpowerup.com/mobile/reviews/Sapphire/R9_285_Dual-X_OC/10.html
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post #40 of 104
I don't know if people would buy this card when you can get R9 290 for cheap these days.
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