Originally posted by: chizow
Leaning towards a GTX 280 although that might turn into a GTX 260 depending on benches. GTX 260 isn't cut down nearly as much relative to GTX 280 as G80 GTS was to G80 GTX so performance should be much closer. If there's only 10% difference or so I may just opt for saving $200.
Not really interesed in the other options since they either involve multi-GPU for noticeable improvement or only a marginal improvement in single-card. Not interested in multi-GPU for many reasons but I would like around 2x performance at 1920 for AA or to smooth frame rates out in some of my more demanding titles.
I'll be curious to see how well GT200 OCs, if at all and how it scales with core clocks. I don't think I can hold out for a 55nm refresh so after launch I may wait a week and see if EVGA releases some OC versions before buying.
Originally posted by: keysplayr2003
Originally posted by: chizow
Leaning towards a GTX 280 although that might turn into a GTX 260 depending on benches. GTX 260 isn't cut down nearly as much relative to GTX 280 as G80 GTS was to G80 GTX so performance should be much closer. If there's only 10% difference or so I may just opt for saving $200.
Not really interesed in the other options since they either involve multi-GPU for noticeable improvement or only a marginal improvement in single-card. Not interested in multi-GPU for many reasons but I would like around 2x performance at 1920 for AA or to smooth frame rates out in some of my more demanding titles.
I'll be curious to see how well GT200 OCs, if at all and how it scales with core clocks. I don't think I can hold out for a 55nm refresh so after launch I may wait a week and see if EVGA releases some OC versions before buying.
It seems to break down like this:
-----------------------------------------------
G80:
8800GTX--->8800GTS640
Mem bus: 384--->320 = @83.5% of GTX
Shaders: 128--->96 = @75% of GTX
Memory: 768--->640 = @ 83.5% of GTX
Overall percentage of physical hardware deficit from GTX to GTS640 is @ 19.5%
------------------------------------------------
GT200 (according to rumors)
GTX280--->GTX260
Mem bus: 512--->448 = @87.5% of GTX280
Shaders: 240--->192? = @80% of GTX280
Memory: 1024--->896? = @87.5% of GTX280
Overall percentage of physical hardware deficit from GTX280 to GTx260 is @ 15%
------------------------------------------------
So, while while it is different, and less of a deficit than a GTX to GTS640, the GTX260 is only 4.5% closer to a GTX280, than a GTS640 was to a GTX.
All this being said, for the OP, I would like to await actual benchmarks to have a valid price/performance perspective. I'm not voting yet.
Originally posted by: keysplayr2003
So, while while it is different, and less of a deficit than a GTX to GTS640, the GTX260 is only 4.5% closer to a GTX280, than a GTS640 was to a GTX.
All this being said, for the OP, I would like to await actual benchmarks to have a valid price/performance perspective. I'm not voting yet.
Originally posted by: Extelleron
Originally posted by: keysplayr2003
Originally posted by: chizow
Leaning towards a GTX 280 although that might turn into a GTX 260 depending on benches. GTX 260 isn't cut down nearly as much relative to GTX 280 as G80 GTS was to G80 GTX so performance should be much closer. If there's only 10% difference or so I may just opt for saving $200.
Not really interesed in the other options since they either involve multi-GPU for noticeable improvement or only a marginal improvement in single-card. Not interested in multi-GPU for many reasons but I would like around 2x performance at 1920 for AA or to smooth frame rates out in some of my more demanding titles.
I'll be curious to see how well GT200 OCs, if at all and how it scales with core clocks. I don't think I can hold out for a 55nm refresh so after launch I may wait a week and see if EVGA releases some OC versions before buying.
It seems to break down like this:
-----------------------------------------------
G80:
8800GTX--->8800GTS640
Mem bus: 384--->320 = @83.5% of GTX
Shaders: 128--->96 = @75% of GTX
Memory: 768--->640 = @ 83.5% of GTX
Overall percentage of physical hardware deficit from GTX to GTS640 is @ 19.5%
------------------------------------------------
GT200 (according to rumors)
GTX280--->GTX260
Mem bus: 512--->448 = @87.5% of GTX280
Shaders: 240--->192? = @80% of GTX280
Memory: 1024--->896? = @87.5% of GTX280
Overall percentage of physical hardware deficit from GTX280 to GTx260 is @ 15%
------------------------------------------------
So, while while it is different, and less of a deficit than a GTX to GTS640, the GTX260 is only 4.5% closer to a GTX280, than a GTS640 was to a GTX.
All this being said, for the OP, I would like to await actual benchmarks to have a valid price/performance perspective. I'm not voting yet.
That's not exactly the whole story, because you're not factoring in clocks.
8800GTS 640MB = 96SP @ 1.188GHz
8800GTX 768MB = 128SP @ 1.350GHz
87.5% of GTX
The GTX has ~50% more shading power than the GTS.
8800GTS 640MB = 24 TMU @ 500MHz
8800GTX 768MB = 32 TMU @ 575MHz
Or, 75% of the shading power of GTX
The GTX has ~53% more texture power than the GTS.
8800GTS 640MB = 64.0 GB/s
8800GTX 768MB = 86.4 GB/s
75% of GTX
The GTX has ~35% more memory bandwidth than the GTS.
Now GTX 280 vs GTX 260.....
GTX 280 1024MB = 240SP @ 1.296GHz
GTX 260 8 96MB = 192SP @ 1.242GHz
80% Like I said
The GTX 280 has ~30% more shading power than the GTX 260.
GTX 280 1024MB = 80 TMU @ 600MHz
GTX 260 896MB = 64 TMU @ 575MHz
80% of GTX280
The GTX 280 has ~30% more texture power than the GTX 260.
GTX 280 1024MB = 140.8 GB/s
GTX 260 896MB = 112.0 GB/s
80% of GTX280
The GTX 280 has ~26% more memory bandwidth than the GTX 260.
So the difference is actually huge.... GTX 260 isn't cut down much, G80 GTS was cut down big time.
Originally posted by: keysplayr2003
Originally posted by: Extelleron
Originally posted by: keysplayr2003
Originally posted by: chizow
Leaning towards a GTX 280 although that might turn into a GTX 260 depending on benches. GTX 260 isn't cut down nearly as much relative to GTX 280 as G80 GTS was to G80 GTX so performance should be much closer. If there's only 10% difference or so I may just opt for saving $200.
Not really interesed in the other options since they either involve multi-GPU for noticeable improvement or only a marginal improvement in single-card. Not interested in multi-GPU for many reasons but I would like around 2x performance at 1920 for AA or to smooth frame rates out in some of my more demanding titles.
I'll be curious to see how well GT200 OCs, if at all and how it scales with core clocks. I don't think I can hold out for a 55nm refresh so after launch I may wait a week and see if EVGA releases some OC versions before buying.
It seems to break down like this:
-----------------------------------------------
G80:
8800GTX--->8800GTS640
Mem bus: 384--->320 = @83.5% of GTX
Shaders: 128--->96 = @75% of GTX
Memory: 768--->640 = @ 83.5% of GTX
Overall percentage of physical hardware deficit from GTX to GTS640 is @ 19.5%
------------------------------------------------
GT200 (according to rumors)
GTX280--->GTX260
Mem bus: 512--->448 = @87.5% of GTX280
Shaders: 240--->192? = @80% of GTX280
Memory: 1024--->896? = @87.5% of GTX280
Overall percentage of physical hardware deficit from GTX280 to GTx260 is @ 15%
------------------------------------------------
So, while while it is different, and less of a deficit than a GTX to GTS640, the GTX260 is only 4.5% closer to a GTX280, than a GTS640 was to a GTX.
All this being said, for the OP, I would like to await actual benchmarks to have a valid price/performance perspective. I'm not voting yet.
That's not exactly the whole story, because you're not factoring in clocks.
8800GTS 640MB = 96SP @ 1.188GHz
8800GTX 768MB = 128SP @ 1.350GHz
87.5% of GTX
The GTX has ~50% more shading power than the GTS.
8800GTS 640MB = 24 TMU @ 500MHz
8800GTX 768MB = 32 TMU @ 575MHz
Or, 75% of the shading power of GTX
The GTX has ~53% more texture power than the GTS.
8800GTS 640MB = 64.0 GB/s
8800GTX 768MB = 86.4 GB/s
75% of GTX
The GTX has ~35% more memory bandwidth than the GTS.
Now GTX 280 vs GTX 260.....
GTX 280 1024MB = 240SP @ 1.296GHz
GTX 260 8 96MB = 192SP @ 1.242GHz
80% Like I said
The GTX 280 has ~30% more shading power than the GTX 260.
GTX 280 1024MB = 80 TMU @ 600MHz
GTX 260 896MB = 64 TMU @ 575MHz
80% of GTX280
The GTX 280 has ~30% more texture power than the GTX 260.
GTX 280 1024MB = 140.8 GB/s
GTX 260 896MB = 112.0 GB/s
80% of GTX280
The GTX 280 has ~26% more memory bandwidth than the GTX 260.
So the difference is actually huge.... GTX 260 isn't cut down much, G80 GTS was cut down big time.
Basically, you said the exact same thing that I did. Albeit with more detail.
Originally posted by: Extelleron
Not really, as I said you didn't factor in clock speeds.
Example, you said that G80 GTS had 75% the shading resources of the GTX.... but when you factor in the clocks, it really has 66%.
Originally posted by: chizow
Originally posted by: keysplayr2003
So, while while it is different, and less of a deficit than a GTX to GTS640, the GTX260 is only 4.5% closer to a GTX280, than a GTS640 was to a GTX.
All this being said, for the OP, I would like to await actual benchmarks to have a valid price/performance perspective. I'm not voting yet.
Those differences are all correct based on leaked specs, but they don't cover the biggest differences imho which are core clock and ROPs.
G80
ROP: 24 > 20 = 83%
Core: 576 > 513 = 89%
GT200
ROP: 32 > 28 = 87.5
Core: 600 > 575 = 95.8%
Personally I think the stock clock speed of G80 GTS was a largely superficial means of influencing overall perception at G80's launch, fortunately this time around there will not be as much of a difference to skew actual hardware differences.
Originally posted by: Foxery
Well, this thread got off track quickly
My vote stays with ATI for the same reason as the previous generation: power consumption. (Along with the resulting heat and noise.) I'll stick with "almost" performance in order to save on the rest.