AMD Radeon R9 295X2 Owners Thread

[humbug]

Apparently the 285 does even better in Tessmark than a 290X, according to PCper, i could easily test my 290 against your 285 result Gibbo, in fact i will. brb

 

[Gibbo]

Apparently the 285 does even better in Tessmark than a 290X, according to PCper, i could easily test my 290 against your 285 result Gibbo, in fact i will. brb

Tested a 290/290X and yes the 285 does indeed slaughter it.

 

[humbug]

No idea if these scores are any good:-

Heaven 4.0 Extreme preset:-

That's a 285

Jesus Christ.....

My 290 @ 1100/1406 = 19672
Gibbo's 285 = 32912 (+65%)

Your 285 just destroyed my 290

Heaven scores on my 290 are much higher though, i'm not sure its tessellation that gives Nvidia the advantage in it.

 

[Gibbo]

Jesus Christ.....

My 290 @ 1100/1406 = 19672
Gibbo's 285 = 32912 (+65%)

Your 285 just destroyed my 290

Heaven scores on my 290 are much higher though, i'm not sure its tessellation that gives Nvidia the advantage in it.

Tessellation performance helps Heaven scores but does not transform them, but Tessellation being equal then AMD/NV might score similar.

Maybe time for a new Heaven benchmark pre-set, 1080P extreme but with no tessellation?

 

[subbytna]

Would the CPU have an effect? the 8350 v 5930k isn't really a contest.

 

[Panos]

Would the CPU have an effect? the 8350 v 5930k isn't really a contest.

My thoughts exactly.

The 285 run on a 5930K @ 4250 with 32GB RAM
The 290 run on a 8350 @ 4515 with 8GB RAM

Could be down to CPU also

 

[Kaapstad]

No idea if these scores are any good:-

Heaven 4.0 Extreme preset:-

That's a 285

That tessmark score has just annihilated my 290X

You scored nearly double the 19k I got.

Even using all 4 of my 290Xs @1230/1625 I was only getting 56k and you managed 33k on a single 285.

That heaven 4 score is very healthy too, I just checked the thread and you need to run a HD 7970 around 1150/1500 to get the same sort of performance.

 

[Kaapstad]

My thoughts exactly.

The 285 run on a 5930K @ 4250 with 32GB RAM
The 290 run on a 8350 @ 4515 with 8GB RAM

Could be down to CPU also

Don't think it is down to the CPU, I only get 19k on a stock 290X using a 4930k.

Don't forget a GTX 770 is slightly better than a 285 on Tessmark. The increase comes from changes in the architecture from Hawaii to Tonga.

Tessellation is a small but welcome part of a cards performance, just because a GTX 770 scores double what a 290X can does not make the 770 the better card (but every bit helps).

 

[SquirrelMadness]

Can someone tell me if this PSU is enough to power this thing:

http://www.thermaltake.com/products-model.aspx?id=C_00000982

It's served me well till now. Have installed 295x2 and 14.4 drivers, got a whopping 18FPS in Watch Dogs before system turned itself off. This means there is not enough power on each 8 pin connector, right? So long as I don't game it's working good.

PSU has 4 12v rails which total 62A (I'm useless with this stuff).

 

[Blitzkrieg]

How long have you had your PSU? Also wondering, did you use any form of daisy chain on your 8 pin connectors?

 

[SquirrelMadness]

How long have you had your PSU? Also wondering, did you use any form of daisy chain on your 8 pin connectors?

Since 2009 I think. No daisy chaining, both 8 pin connectors are separate and come straight out of the PSU (not modular) but I think they are on the same rail.

 

[Gibbo]

Can someone tell me if this PSU is enough to power this thing:

http://www.thermaltake.com/products-model.aspx?id=C_00000982

It's served me well till now. Have installed 295x2 and 14.4 drivers, got a whopping 18FPS in Watch Dogs before system turned itself off. This means there is not enough power on each 8 pin connector, right? So long as I don't game it's working good.

PSU has 4 12v rails which total 62A (I'm useless with this stuff).

That PSU will fall flat on its face with a 295 X2, its multi rail and not single. No hope!

 

[SquirrelMadness]

That PSU will fall flat on its face with a 295 X2, its multi rail and not single. No hope!

OK cool I need an upgrade anyway (partially modular = complete cable mess). So the bad FPS is because of low power input right? I hope so lol

 

[VincentHanna]

Watchdogs dipped below 30fps when I tried it.

I think that might be a crossfire issue. My single 290x didn't have that problem.

 

[Gibbo]

OK cool I need an upgrade anyway (partially modular = complete cable mess). So the bad FPS is because of low power input right? I hope so lol

If it is happening all the time and not just on scene changes, then yes PSU.

 

[Gibbo]

Don't think it is down to the CPU, I only get 19k on a stock 290X using a 4930k.

Don't forget a GTX 770 is slightly better than a 285 on Tessmark. The increase comes from changes in the architecture from Hawaii to Tonga.

Tessellation is a small but welcome part of a cards performance, just because a GTX 770 scores double what a 290X can does not make the 770 the better card (but every bit helps).

Hi there


AMD Technical have explained why this is:-


To provide improved geometry performance on the order of 2-4x the tessellation throughput we did a number of things

Compared to R9 280 Series:
• R9 285 can execute 4 primitives per clock vs. the R9 280 series which can only execute 2 primitives per clock (Quad Prim vs. Dual Prim)

Compared to the tessellation unit in the R9 290 Series we’ve improved performance through the following
• Larger parameter cache, backed by L2 read/write cache
• Improved work distribution between geometry front-end units
• Improved vertex re-use for better performance with many small triangles

In summary it was done through improved HW and as we do with each generation we are constantly improving our HW as the demands of new games continue to grow.

I hope this answers your question.....

 

[Kaapstad]

Hi there


AMD Technical have explained why this is:-


To provide improved geometry performance on the order of 2-4x the tessellation throughput we did a number of things

Compared to R9 280 Series:
• R9 285 can execute 4 primitives per clock vs. the R9 280 series which can only execute 2 primitives per clock (Quad Prim vs. Dual Prim)

Compared to the tessellation unit in the R9 290 Series we’ve improved performance through the following
• Larger parameter cache, backed by L2 read/write cache
• Improved work distribution between geometry front-end units
• Improved vertex re-use for better performance with many small triangles

In summary it was done through improved HW and as we do with each generation we are constantly improving our HW as the demands of new games continue to grow.

I hope this answers your question.....

This is going to be good when they put these improvements into their high end next gen cards as well.

 

[Gibbo]

This is going to be good when they put these improvements into their high end next gen cards as well.

I just tested a 290X Lightning in same system, it got 21,000 Tess marks, so over 10,000 less.

The 285 certainly has some nice tweaks to it, also very impressed with how cool and quiet it runs.

 

[faxfan]

Check and it's rated 83A on the 12volt rail - that is enough to run a 295x2 right?

Found my problem the waterblock (also purchased for Overclockers) has leaked (internally on the block itself) onto the GPU

RMA on it's way, hopefully this will be ok this time.

 

[Panos]

Jesus Christ.....

My 290 @ 1100/1406 = 19672
Gibbo's 285 = 32912 (+65%)

Your 285 just destroyed my 290

Heaven scores on my 290 are much higher though, i'm not sure its tessellation that gives Nvidia the advantage in it.

Yeah :/
My 295X2 @ 1030/1625 got 20298!!!!!!!!!!!! Explain that -_-

Spoiler

@Gibbo, you were right...... 1030 the card performs great.