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| MaxPowr Pro 750 275/275 Performance | |
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The MaxPowr Pro 750 275/275's MacBench CPU scores were the best I've seen from any card except the PowerForce 250 (running at 292mhz), trailing that card by 6%. Initial application tests results show it is slightly faster than the 266mhz model running a 1:1 cache speed. Surprising was the video score - which bested even the PowerForce 250 card in MacBench's Graphics test at 1024x768, thousands color mode. The card was very responsive in use, and there were no problems of any kind encountered during the testing. Especially impressive were the results it achieved running in the PowerTower Pro with the Raid array, as it posted the highest rates I've seen with the Adaptec 3940UW dual channel card running both channels (one drive per channel), according to the ATTO disk I/O benchmark. Since my PowerForce 250 card is a rev 0 card and will not work with the Adaptec, and the only ATTO card I have is a single channel only, I can't say if the PowerForce card would outperform the 275/275 in that test. I hope to obtain an ATTO dual channel card for testing soon.  The 275/275's 1MB backside cache running at 275mhz is the primary reason it outscores the Apple G3/266 system (which has a slower 512k backside cache) as shown in this graph. The Apple G3 was running LibMoto math extension also, but with a larger disk cache setting of 2MB, vs 512k for the 8500. However the Apple had 80megs of ram, the G3 only 32megs.  |
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