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Some numbers comparing the 8800 GTX & the X2800 XTX.

I ran across the specifications for the X2800 XTX in this thread over at the [H]ard|Forums. So I decided to throw together a chart to compare the fill rates and operations of the X2800 XTX and various 8800 GTXs. I hope you like it!

 

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15 Comments
Wednesday, February 14, 2007 6:58:29 PM
David
Senior Member
Awesome! But are these simple or complex shader op's you counted?
Wednesday, February 14, 2007 7:16:54 PM
Wraithdagger
guest
X2800XTX just KILLS. 'nuff said.
Wednesday, February 14, 2007 7:24:47 PM
Steve
The Progenitor
Um...I took the numbers from the thread I linked to for X2800 XTX and then I used our overclocker tool thingy to get the numbers for the overclocked 8800 GTXs. That is all I did, and that is all I know.
Wednesday, February 14, 2007 7:38:57 PM
David
Senior Member
Ok sorry man did'nt mean to be rude.
Thursday, February 15, 2007 1:23:42 AM
Track
guest
1. The Shader Operations on the G80 are NOT 87,200. They are much higher because they use the Shader Clock.
2. Does the G80 really have more TMU's? If so, it should be better than he R600 already.
Thursday, February 15, 2007 5:58:01 AM
Kriza
n00b
I dunno why, but i think its bs again. like all the other tables, what I have found...
Thursday, February 15, 2007 9:38:00 AM
Steve
The Progenitor
Track. The chart does not say the G80 can perfrom 87,200 Shader Ops/sec. I don't know what a TMU is. Texture Mapping Unit maybe?
Thursday, February 15, 2007 12:50:52 PM
aliquidparadigm
Senior Member
Nowhere are the G80 shader ops listed as 87,200, Track.
Thursday, February 15, 2007 5:00:23 PM
Track
guest
Uh, I mean 83,200.
Thursday, February 15, 2007 7:12:39 PM
anonymous
guest
Well i think this will be interesting. From what i've read it seems to me that ati is stalling for some reason.
Friday, February 16, 2007 12:40:49 AM
David
Senior Member
They are Float 1 only to get the float 4 shader op's on the G80 divide by 4 the stream procs and multiply by the stream proc clock(I dont think it can really do float 4 unless you're talking hypothetically) And to get the float 1 op's of any 7-series card or x1k and before series multiply by 4 so the x1950xtx has 124800 float 1(or simple shader op's) and the 7900gtx has 62400 float 1. The R600 should have 192000 float or 48000 float 4 op's.(Man i gotta stop being so precise with everything all the time)
Friday, February 16, 2007 3:17:53 AM
Track
guest
So ur saying that FOUR scalar pipes are the same as a SINGLE Vec4, and thus it would be possible to know how many shaders a Scalar has by dividing it by 4 and multiplying it by the core clock?

Well, i dont know if thats true.. cause things arent coming in 4's anymore. So its probably not accurate.

But it wouldnt have been accurate anyway, since u must use the shader clock and not the core clock.
Friday, February 16, 2007 9:40:31 AM
David
Senior Member
I'm talking hypothetically. The g80 cant do real vec4 shader op's but it can do simple shader which are 1/4 of a complex shader.
Friday, February 16, 2007 4:41:31 PM
Track
guest
They are not exacly 1/4 of a Vec4. They are better than that.
Saturday, February 17, 2007 12:30:29 AM
David
Senior Member
Sorta right but scalars can clock higher then vec4.
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