GTA 4: Patch v1.040 reviewed - Insignificant performance benefits only
Patch 1.040 for Rockstar's GTA 4 has been introduced to the game. The Release Notes list the same performance optimizations that have been mentioned in the previous update. PC Games Hardware tests the patch with four popular graphics cards.
Excerpt of the Readme file listing the changes applied with the previous patch:
* Interior Lights for ATI 1900 series cards:
- All light sources appear for users with 1900 series ATI cards. (ie. Pool Mini Game)
- ALT-TAB fixed
* Graphics Settings:
- Added menu option " OFF " for Reflection quality
- Added menu option " OFF " for Shadow quality
* Physics optimizations to improve situations with heavy physics calculations (ie. 32 player races)
* Graphical Performance Optimizations
The full list of changes can be found in our article GTA 4 (PC): Version 188.8.131.52 is ready for download. For more information about Rockstar's vehemently discussed game we also recommend:
GTA 4: Patch v1.040 reviewed - Benchmark methods
For comparable results it is not enough to go to the GTA 4 video options an put all sliders to the limit, because the game couples the maximal details to the available video memory of the graphics card. A 512 MiByte card is not allowed to display the same view distance as a card with 768 or 1,024 MiByte. This restriction can be worked around by editing the commandline. But now another problem arises: Although you can set the video options to the maximal values now, not all details are displayed in the game. This is caused by the lack of video memory because of which the game doesn't stream all the data. But this can again be countered by combining the command "availablevidmem” with a digit. With this tewak you convince the game that more video memory is available than there I really is.
With 1,024 MiByte VRAM textures are missing or popping up rarely only and because of that we use this as a basic value for our benchmarks. For graphics cards that have this amount of video memory we only maximize the settings in the video options with the view distance at 50 percent. The blur filter is deactivated. Cards with less than 1,024 MiByte are tweaked with the following values in order to make the game believe that more than 1,000 MiByte are available.
512 MiB cards: availablevidmem 2.1
Geforce 8800 GTX/Ultra: availablevidmem 1.4
Geforce GTX 260/275: availablevidmem 1.2
This way we ensure that all cards display the same details. This costs a lot of performance for 512 MiByte cards since they have to swap a lot of data to the system memory.
GTA 4: Patch v1.040 reviewed - Test sequence
We use our "Promenade” benchmark for this review but this time we run the tests at in-game sunset because of the different lighting effects this scene is more challenging for the graphics cards than it would be at in-game high noon. We sprint down the pavement for 20 seconds and take the average results of two runs.
The benchmarks are run at 1,680 x 1,050, 1,920 x 1,200 and 2,560 x 1,600 pixels. 16:1 AF is always activated while FSAA is still not possible. The Radeon cards are powered by the Catalyst 9.6 WHQL and the Geforces use the Geforce 186.18 WHQL. The benchmark results can be found on the next page.
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