Tessellation masters challenge!

**demonkevy666** · 09-28-2010, 05:25 PM

Originally Posted by Ket

ATI cards only have a single hardware tessellation unit. I'd bet the 6k series introduces a second or even third. If not.. well ATI really dropped the ball.

should have bought 4 5670 then LOL. would been cheaper too...

>_>

you have 14 tessellators for one 470 GTX
while it looks like this 5870 has 1 for the whole gpu :/

**Tommie_lj** · 09-29-2010, 03:30 AM

Res is only 1600x900, and clocks is 24/7. look at the min FPS... lol!

**Ket** · 09-29-2010, 05:53 PM

Originally Posted by demonkevy666

should have bought 4 5670 then LOL. would been cheaper too...

>_>

you have 14 tessellators for one 470 GTX
while it looks like this 5870 has 1 for the whole gpu :/

Actually, thats not strictly true. No current nvidia card has a single tessellation unit onboard. Instead nvidia emulate tessellation through the CUDA cores, which is crude, but effective. So on paper ATI have the superior hardware design, although ATI did (or deliberately to leave from for improvement) underestimate the demands of tessellation. Rumor is ATI are planning on writing some code that divert some of the stream processors to tessellation duties when the situation arises, however if this is true you won't see it until sometime after the 6k series is out I wouldn't think.

**demonkevy666** · 10-01-2010, 08:10 PM

Originally Posted by Ket

Actually, thats not strictly true. No current nvidia card has a single tessellation unit onboard. Instead nvidia emulate tessellation through the CUDA cores, which is crude, but effective. So on paper ATI have the superior hardware design, although ATI did (or deliberately to leave from for improvement) underestimate the demands of tessellation. Rumor is ATI are planning on writing some code that divert some of the stream processors to tessellation duties when the situation arises, however if this is true you won't see it until sometime after the 6k series is out I wouldn't think.

keywords their is "looks" for now.
I found a test with crossfire 5770 Heaven 2.1 Extreme 16x 8x
my single card 5870 only got 12.5 those two card got 23.7 1.9 times faster then a single card by having more units tessellate translate to high numbers their.
that was the same number shaders too so adding two more tessellation units scaling could be as good as 3.4 or as low was 2.575. besides no ever test 4 way crossfire that low.

If that code ever comes out the 6770 will be slower then then 5870 since the 6000 series is said to be a 4:1 in stead of the current 5:1 design, like the 5870.

**Ket** · 10-02-2010, 03:54 AM

How is that such a surprise? Two tessellation units scale almost perfectly for minimum FPS. Pretty obvious 2x tessellation units double FPS in a tessellation test.

**Conumdrum** · 10-02-2010, 06:57 PM

Had me worried for a sec.

CPU/GPUs stock speeds.

**Conumdrum** · 10-02-2010, 07:00 PM

Originally Posted by demonkevy666

should have bought 4 5670 then LOL. would been cheaper too...

you have 14 tessellators for one 470 GTX
while it looks like this 5870 has 1 for the whole gpu :/

Shoulda posted a smaller pic..........................

**demonkevy666** · 10-03-2010, 09:49 AM

Originally Posted by Ket

How is that such a surprise? Two tessellation units scale almost perfectly for minimum FPS. Pretty obvious 2x tessellation units double FPS in a tessellation test.

not my point.
point is that between 5670, 5770, 5870 Tessellation is about at about the same level for all 3 cards.

Originally Posted by Conumdrum

Shoulda posted a smaller pic..........................

it would degrade quality too much, plus I'm no good at it lol

**Cookiesowns** · 10-04-2010, 10:53 PM

Uhh, can I do 1920x1080 Instead?

**TJ TRICHEESE** · 10-05-2010, 11:27 AM

yea the tri sli 470 numbers seem a bit odd, but here's my score.

**Salamndar** · 10-05-2010, 01:13 PM

Here is mine........

**BeepBeep2** · 10-05-2010, 01:35 PM

Originally Posted by Ket

1...No current nvidia card has a single tessellation unit onboard. Instead nvidia emulate tessellation through the CUDA cores, which is crude, but effective.

2...So on paper ATI have the superior hardware design, although ATI did (or deliberately to leave from for improvement) underestimate the demands of tessellation.

3...Rumor is ATI are planning on writing some code that divert some of the stream processors to tessellation duties when the situation arises, however if this is true you won't see it until sometime after the 6k series is out I wouldn't think.

1. This is wrong. On a GTX480 GPU you have 16 tesselation units, 15 active, and one disabled/for redundancy.
Nvidia does not emulate tesselation, it is done in steps between the Polymorph Engine(s) and the Raster Engine.
The CUDA cores are actually doing none of the work, just communicating with the Polymorph Engine(s) and Raster Engine,
telling them what needs to be done as to what needs to be tesselated and how much.

2. AMD's architecture works in a similar way, but every card from 5670-5870 have the same tesselation capabilities.

This time around, the Tesselator and Rasterizer as well as geometry processing are combined into one "unit"...
the "Graphics Engine". This Graphics Engine communicates with the Ultra-Threaded Dispach Processor,
similar to NVIDIA's Gigathread Engine.

In reality, AMD's architecture on paper (Tesselation wise) is far, far inferior to NVIDIA's.
Also, remember that HD5800 was released half a year before GTX4xx...

3. AMD Has been working on Tesselation with Vertex Shaders in DX9 since 2007-2008 and Radeon HD3000 Series.
DX9 Tesselation Demo

Of course, this can be emulated on a Stream Processor, but DX11 is completely different than DX9 as far as tesselation goes. Where did you hear this rumor?

**kaktus1907** · 10-05-2010, 02:56 PM

Originally Posted by Salamndar

Here is mine........
*snip*

**BeepBeep2** · 10-05-2010, 03:13 PM

lol...

**Salamndar** · 10-05-2010, 03:33 PM

*Deleted*

**Q56_Monster** · 10-05-2010, 07:56 PM

Unigine engine is a faulty benchmark as significantly higher scores can be obtained by downclocking the cpu. Score aren't really comparable unless we see cpu-z also.

I found this out the hard way, lol!

**Funkwagen** · 10-05-2010, 08:27 PM

Originally Posted by Ket

Seriously? Your monitor must run on coal

actually still working on coal, firewood at the moment.

Meh, I still love the thing

**pr@$r1g** · 10-06-2010, 06:16 PM

Originally Posted by Gaul

mine only can do 1280 x 1024

U can set the resolution to the fullest Ur monitor supports ,may be its time to change ur monitor.

**Cookiesowns** · 10-10-2010, 02:34 PM

Am I considered a MAN? IMHO, people with SLI configs should run in 1080P, no less.

**owcraftsman** · 10-11-2010, 06:32 AM

Single 480 overclocked

**demonkevy666** · 10-13-2010, 03:39 PM

Originally Posted by owcraftsman

Single 480 overclocked

so close but you did 8x and 4x

you want to try running that again with 8x and 16x and set the Tessletion scaling option to 2.0 on all three settings

My 5870 scored 9.4 Fps Min 2.2 and max of like 37.5 (2gbs card)

**owcraftsman** · 10-14-2010, 10:05 AM

Scaling was set to 2.0 I will run again.

**SBB** · 10-15-2010, 10:01 AM

Not bad!

**hodgy1971** · 10-16-2010, 12:21 AM

here's mine guys!

**demonkevy666** · 10-22-2010, 07:33 AM

Originally Posted by Ket

ATI cards only have a single hardware tessellation unit. I'd bet the 6k series introduces a second or even third. If not.. well ATI really dropped the ball.

single Vs 15 emulated.

yes I agree with ball dropped.
should be called 6770/6750 or hell even 6740 and 6760.

still no addition to units slightly more powerful, but barely.

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