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MSI PCX5750-TD128 MSI PCX5750-TD128: We take look at MSI's mid-ranged, NVIDIA based PCI-Express solution.
Date: August 23, 2004
Manufacturer:
Written By:
Price:

Call of Duty - VL Custom Demo

1024x768
1280x1024
1600x1200
No AA/AF
79.2
53.2
36.8
4xAA/4xAF
38.3
7.6
4.9
4xAA/8xAF
38.0
7.4
4.8

We ran our custom multiplayer demo and as you can see above, you're better off not running AA/AF. 1024 is the ideal resolution, with 1280 still being quite playable. I can't really say the same for everything else, especially once we get to 1280 and beyond with AA/AF.

Doom 3 - Demo1 (High Quality)

1024x768
1280x1024
No AA/AF
19.5
13.6
4xAA/4xAF
12.6
8.0
4xAA/8xAF
12.0
7.7

Before getting alarmed, keep in mind that we ran Doom 3 with very high image quality. That being said, as we can see, the PCX5750 cannot keep a 20fps clip at these settings. Since there is also a medium setting available, we decided to reduce the image quality and resolution to see if we could attain playable framerates.

Doom 3 - Demo1 (Medium Quality)

800x600
1024x768
No AA/AF
33.5
23.5

It's looking like for Doom 3, you're going to have to consider 800x600 or lower if you want to keep all the other quality settings fairly high. 800x600 still looks great though, and the gameplay is pretty good, though it does bog down a little in the larger fire fights.

Overclocking

With the large cooler, and MSI "underclocking" the Samsung ram, we had some high hopes in overclocking the PCX5750. The first order of business is to make sure the Coolbits registry entries are in there to enable the clock frequency settings in the drivers.

The control panel options has a "Detect Optimal Frequencies" button. Pressing that will allow the card to dynamically overclock and test the card. The end result for us was 484 core and 627 memory. Not bad, but we're certain the card can do better. We began by dropping the memory down to 500MHz, and bump the core slowly until we reached 504MHz.

Knocking the core back down to 425MHz, we began moving the memory upwards to 655MHz, which is over 155MHz over stock. Keep in mind our maximum overclocks were when we moved the other factor (core or memory) to stock. When we moved both the core and memory to the max OC, the tests failed. Through a bit of trial an error, we settled on this final OC...

The end result was a 502 core and 640 memory. We did manage to boost the memory to as high as 643, but there was image corruption at that speed. So, after all this work, was there any benefit to it?

Doom 3 - Demo1 (High Quality)

1024x768 (no AA/AF)
1280x1024 (4xAA/8xAF)
Stock 425/500
19.5
7.7
Overclocked 502/640
27.5
9.8

Call of Duty - VL Custom Demo

1024x768 (no AA/AF)
1280x1024 (4xAA/8xAF)
Stock 425/500
79.2
7.4
Overclocked 502/640
97.9
9.6

As we can see, overclocking can improve performance significantly depending on what resolution you play at. I expected a bigger improvement at the higher resolution and detail level, but we did not see much happening at all. With AA/AF turned off and at 1024, we can see large performance gains of about 40% and 23% in Doom 3 and Call of Duty respectively.

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