My computer is as follows:
AMD X4 630 @ 3.5 ghz.
4 Gigs DDR2
GTX 260 192
I ran the Unigine benchmark with DX10, High, 16 AF and 4xAA. My score was 24.0 fps at 604 points.
I then ran the GTA IV built-in benchmark with relatively high settings and scored 47 fps while using 87% CPU utilization.
Then, I uninstalled my GTX 260 drivers, removed the card and installed my new HIS 6850 and the newest Catalyst drivers.
I reran Unigine and increased to 34.0 fps with 865 points, an increase of 42%. I then loaded up GTA IV and whoa, it plays worse than before. WTF? I decided to run the benchmark and yes, it does. I scored 37.7 fps (was 47) with only 50% CPU utilization. I then went back into the non-benchmark mode, upped car density, view distance etc. to the max and ran around a bit. I then alt+tabbed to my desktop with Task Manager opened and sure enough, it looks like it's hovering around 45-50% CPU, with each of my 4 cores around 50%. What the #*c%??? I play the crap out of GTA IV and it was a huge motivator for getting the new card as I just got the 2 expansions for it, and also wanted to try MLAA.
Any ideas? I checked the affinity for GTA IV while it's running and it's set to all cores and each core is checked.
I appreciate any help!
AMD X4 630 @ 3.5 ghz.
4 Gigs DDR2
GTX 260 192
I ran the Unigine benchmark with DX10, High, 16 AF and 4xAA. My score was 24.0 fps at 604 points.
I then ran the GTA IV built-in benchmark with relatively high settings and scored 47 fps while using 87% CPU utilization.
Then, I uninstalled my GTX 260 drivers, removed the card and installed my new HIS 6850 and the newest Catalyst drivers.
I reran Unigine and increased to 34.0 fps with 865 points, an increase of 42%. I then loaded up GTA IV and whoa, it plays worse than before. WTF? I decided to run the benchmark and yes, it does. I scored 37.7 fps (was 47) with only 50% CPU utilization. I then went back into the non-benchmark mode, upped car density, view distance etc. to the max and ran around a bit. I then alt+tabbed to my desktop with Task Manager opened and sure enough, it looks like it's hovering around 45-50% CPU, with each of my 4 cores around 50%. What the #*c%??? I play the crap out of GTA IV and it was a huge motivator for getting the new card as I just got the 2 expansions for it, and also wanted to try MLAA.
Any ideas? I checked the affinity for GTA IV while it's running and it's set to all cores and each core is checked.
I appreciate any help!
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