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merle · 01-30-03, 08:41 PM

For an idea of the possible performance improvement of doubling the bus speed, we can look at the benchmark done with an overclocked XScale Pocket PC. Hack Master, a software utility, by fiddling with XScale internal registers, I think, allows you increase your XScale's speed to 472MHz and the memory bus speed to 118MHz. The benchmarks here show up to a 20% improvement in performance when overclocked, and the difference is noticeable. I don't think people have seen an that much difference in performance between a 300MHz and a 400MHz XScale. So much of the improvement could be due to the speedup in bus:

http://www.firstloox.org/hackmaster.htm

Overclocking Results tested with VOBenchmark:

CPU 398Mhz 472Mhz
Floating Point 12.61 15.01
Integer 29.94 31.87

Graphics/Bitmap
BitBlt 58.15 69.97
StrechBlt 0.95 1.11

Graphics/Filled
Ellipse 0.91 1.07
Rectangle 5.41 6.51
Rounded Rect 0.89 1.09

Memory
Allocation 10.83 13.90
Fill 0.91 1.08
Move 0.36 0.42
Text 3.81 4.52

As you can see from the results, the over-clocking of the XScale CPU comes up with an increase of up to 20% compared to the normal CPU settings. This looks impressive!

All day experience shows that the over-clocked Pocket Loox seems to be more responsive, processes seem to be noticeably faster.

01-30-03, 08:41 PM	#11 (permalink)
merle Aximsite Prospect Join Date: Jan 2003 Posts: 17 Thanked 0 Times in 0 Posts	For an idea of the possible performance improvement of doubling the bus speed, we can look at the benchmark done with an overclocked XScale Pocket PC. Hack Master, a software utility, by fiddling with XScale internal registers, I think, allows you increase your XScale's speed to 472MHz and the memory bus speed to 118MHz. The benchmarks here show up to a 20% improvement in performance when overclocked, and the difference is noticeable. I don't think people have seen an that much difference in performance between a 300MHz and a 400MHz XScale. So much of the improvement could be due to the speedup in bus: http://www.firstloox.org/hackmaster.htm Overclocking Results tested with VOBenchmark: CPU 398Mhz 472Mhz Floating Point 12.61 15.01 Integer 29.94 31.87 Graphics/Bitmap BitBlt 58.15 69.97 StrechBlt 0.95 1.11 Graphics/Filled Ellipse 0.91 1.07 Rectangle 5.41 6.51 Rounded Rect 0.89 1.09 Memory Allocation 10.83 13.90 Fill 0.91 1.08 Move 0.36 0.42 Text 3.81 4.52 As you can see from the results, the over-clocking of the XScale CPU comes up with an increase of up to 20% compared to the normal CPU settings. This looks impressive! All day experience shows that the over-clocked Pocket Loox seems to be more responsive, processes seem to be noticeably faster.