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[PCGH] Assassin's Creed DX10 vs DX 9 performance

post #1 of 40
Thread Starter 
Quote:
In february, Charles Beauchemin, technical leader for Assassin's Creed, said in February that the DX10 version under Vista will be noticably faster than the DX9 version under Vista.

For the benchmark, we chose a scene of a city named Damaskus. We make a 40 seconds run over different roofs and streets, where the amount of people is almost exactly the same for every bench.

The somponents we used for testing:
DX10-DX9 comparisson:
Core 2 Quad Q6600
2 GiByte RAM
Radeon HD3870 / Geforce 8800 Ultra
Windows Vista Ultimate (32 Bit) without Service Pack 1

CPU tests:
Uli M1697 / Nforce 680 SLI
Geforce 8800 GT
2 GiByte RAM
Windows XP SP2
Forceware 169.21 (HQ)

With minimum details, the DX10 version is faster than the DX9 one with booth the 8800 Ultra and the HD 3870. The reason for this behaviour is most likely caused by the efficient Vista-DX10-API. DX10 can send more information to the video card without stressing the CPU that much. The result are higher framerates - at least as long as the video card is not limiting. With all details turned on, the video card becomes the limiting factor and the additional CPU resources cannot be used.






Source (German)
Original Thread @ Vr-Zone
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post #2 of 40
I read about this before, they werent using DX10 for improved quality, they were using it for better FPS. I guess it sort of worked.
post #3 of 40
Yet again i don't see any major improvements visually in DX10, however the performance boost is good enough to keep me happy. We just need benchies of how well the 8800GT performs with DX10.
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post #4 of 40
Quote:
Originally Posted by Outcasst View Post
Yet again i don't see any major improvements visually in DX10, however the performance boost is good enough to keep me happy. We just need benchies of how well the 8800GT performs with DX10.
It's not too shabby really. My GT heavily overclocked averages 50-60 fps in Gears of War dx10 + anti aliasing. That's on 1024x768
post #5 of 40
yet a another reason not to go dx10. non much of a differents. just another way to call for a minumal iinprovement to get us to spend money. that isnt need
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post #6 of 40
Quote:
Originally Posted by -AMD- View Post
yet a another reason not to go dx10. non much of a differents. just another way to call for a minumal iinprovement to get us to spend money. that isnt need
There was a 20 fps boost... not a big visual difference, pretty major performance difference.
post #7 of 40
Quote:
Originally Posted by Namrac View Post
There was a 20 fps boost... not a big visual difference, pretty major performance difference.
couldn't have said it better.
    
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post #8 of 40
Quote:
Originally Posted by Namrac View Post
There was a 20 fps boost... not a big visual difference, pretty major performance difference.
Exactly, now DX10 may not be all it was cracked up to be, but this game seems to show at least part of what it was designed to do; and that's good because it shows people are making progress with the API.

And DX10 is only minimally better I think because developers don't TRY to make the game look any better, they sorta just...throw it in there.

Also, I may be picky, but I hate DX9 shadows, look at them in that screenshot, they're so jaggy and ugly, but the DX10 ones look so much better.
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post #9 of 40
So... you can get a boost if you like to play at low quality on your 8800 ultra or 3870, but if you want to play on high you actually get a (HUGE) performance drop? That seems entirely 100% useless to me.
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post #10 of 40
No diffenrce to me
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