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Unbelieveable 50% speed boost in Mobility Radeon 9600/9700 - Page 2

post #21 of 112
7/21/04 at 2:40pm
maybe he got a special gpu which is the 9800 by mistake. I'm glad you got a kick out of it.
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post #22 of 112
7/21/04 at 2:41pm
Quote:
Originally Posted by OGREtheBUFFOON
gold, the maximum for the 9700 is inhibited mostly by heat. that's why downclocking the cpu helps so much.
Quote:
Originally Posted by Gold
So how does it run faster without increasing clock and mem speeds?
Exactly what I'm wondering too. I can understand how you could possibly overclock the GPU higher if the CPU was drawing less power and the system was cooler, but I don't understand how you'd get higher framerates at the same clock/mem speeds.

Is anyone else going to test this out? It's just too weird.
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post #23 of 112
7/21/04 at 2:43pm
my bet is that his CPU might be a bit of a lemon, and faults at the higher clock speed, when under clocked, it no longer faults, thus making things run faster... but still, that's pushing the bounds of probability.

I can't wait to hear a real explanation for whats going on here
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post #24 of 112
7/21/04 at 2:45pm
I have the answer. Its either a magical chip or possessed.
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post #25 of 112
7/21/04 at 2:47pm
mayaman2 -- get a job researching the x-files... you'll fit right in
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post #26 of 112
7/21/04 at 2:47pm
Maybe what is happenening... is what has happened to me on several occasions when using speedswitch xp and a Pentium-M notebook, while playing video games. Sometimes, I would load up a game, and it would go real FAST... TOO fast. Like if I had the game on fast forward.

But its probably not what is happening here.
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post #27 of 112
7/21/04 at 2:48pm
sweet. i need a job.
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post #28 of 112
7/21/04 at 2:50pm
Quote:
Originally Posted by Enderet
Maybe what is happenening... is what has happened to me on several occasions when using speedswitch xp and a Pentium-M notebook, while playing video games. Sometimes, I would load up a game, and it would go real FAST... TOO fast. Like if I had the game on fast forward.

But its probably not what is happening here.
That sounds like the computer timer is not working properly after the speed switch... like playng TestDrive3 on a modern computer...
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post #29 of 112
7/21/04 at 2:50pm
Gold, I just tried it. Down clocked my 8790 from 3.2 to 2.4 Ghz. My 3D mark 2003 score was slightly slower (no GPU overclocking) from 3330 to 3280. I especially noticed the CPU tests being very slow. However, my rthdribl increased from 23 to 31 fps on all default settings.

Rather strange indeed! I guess it must be a compromise of decreased CPU power for greater GPU power. I'm not sure how this works though.
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post #30 of 112
7/21/04 at 2:52pm
*Insert a Neo "whoah" here*

This is definetely turning out to be very interesting...
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post #31 of 112
7/21/04 at 2:54pm
Thread Starter 
Quote:
Originally Posted by Amir
lmao!!! Sorry, but a cooler laptop doesn't give better performance to a video card automatically. I don't know who posted that but I just had the laugh of the day. Heat will only do two things to a video card. 1- Cause wear and tear over time and 2- cause the card to crash due to overheating GPU. The system won't magically overclock the card and be faster if it's cool
Therefore this is not a temperature issue. I'll give this a shot tonight when I get home.


Exactly!


If that was so then all 2.4 Ghz laptops would be beating 3.2 ghz laptops in graphics all over the world. The IT industry would have noticed that don't you think.

That and that gaming would be 900% faster in winter months.



SHAPESHIFTER:

EXCELLENT!!!!


I knew I wasn't crazy!

There you go people insane fps boost for free!

Your all welcome.
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post #32 of 112
7/21/04 at 2:57pm
Quote:
Originally Posted by Gold
I knew I wasn't crazy!
Hey! Hey! I wouldn't go so far as to say that now. We need more proof than that.
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post #33 of 112
7/21/04 at 3:00pm
One idea here is i've found that running my 4080 at AGP 4x/64mb apeture offered the best testable performance. My theory for why this happened was that the GPU or bus couldnt handle the data from 8x mode, and was "flooding". i also notice if i move large amounts of data across the bus (ide->firewire for instance) i loose more performance than just the resource usage accounts for. perhaps this is an exadgerated version of the same effect, on top of the few percent that can be expected from the better thermal conditions. (this was true before the 1.10A.1s bios update i ran yesterday that, amoung other things adds an option to disable that obnoctous boot beep, i havent had time to check if its been fixed)
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post #34 of 112
7/21/04 at 3:02pm
Imo it might be because at stock speeds his cpu got too hot and was thorttleing the speed of it and the gpu.
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post #35 of 112
7/21/04 at 3:06pm
Thread Starter 
Mobmeter is in my msconfig, and my CPU always ran from 45-50c where the fans would start, then it would fall again, etc, etc.

It was not running hot at all.


Besides someone else confirmed this weird speed boost.
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post #36 of 112
7/21/04 at 3:15pm
Quote:
Originally Posted by takuma
Imo it might be because at stock speeds his cpu got too hot and was thorttleing the speed of it and the gpu.
I'm betting this as well. Not that the GPU gets throttled (does the Mobility have a throttle capability?), but that the CPU is throttling and the resulting slowdown during gaming is worse than a non-throttled slower CPU.

I brought my lappy to work today (to install an Oracle db in preperation for a working vacation). I'll run some tests using 3DMark (it would be ... rude ... to play games).

<edit>
Watts = Clock (FSB) * Multiplier * (Voltage^2)
</edit>
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post #37 of 112
7/21/04 at 3:16pm
Manufacturers needs to get off their a$$ and put this in their systems:

http://www.mobilemag.com/content/100/334/C1811/
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post #38 of 112
7/21/04 at 3:17pm
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post #39 of 112
7/21/04 at 3:25pm
that's exactly what i was hoping for.

you shouldn't sompare the 8890 to his 5680 (i think). totally diff machines. i realize that downclock almost always decreases performance, this is one of those exceptions. his unit is probably full of dust and overheated and his gpu is too hot to perform at its best. it's a well known fact that electronics run faster at lower temperature (to a point), so i think this is what's happening, the cpu cools off enough and allows the previously handicapped gpu to perform like it should. any other theories are welcome because this is indeed friggin' weird
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post #40 of 112
7/21/04 at 3:26pm
That would solve a ton of heating problems for dtrs.
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