Sneak Peek at 800MHz FSB Performance
by Anand Lal Shimpi on March 25, 2003 7:37 PM EST- Posted in
- CPUs
Final Words
You'll notice that we kept our commentary on benchmarks to a minimum in this review, mainly because of this table below showing the performance improvement the 800MHz FSB provided in each of our benchmarks (we're comparing 2.4/800 vs 2.4/533 both using dual DDR400):
|
Benchmark
|
Performance
Improvement over 533MHz FSB
|
| Office SYSMark 2002 |
4.9%
|
| Internet Content Creation SYSMark 2002 |
6.9%
|
| MPEG-4 Encoding |
6.2%
|
| Gaming Performance - Quake III Arena |
4.4%
|
| Gaming Performance - Jedi Knight II |
4.9%
|
| Gaming Performance - UT2003 Flyby |
2.6%
|
| Gaming Performance - UT2003 Botmatch |
4.7%
|
| SPECviewperf 7.0 - 3dsmax-01 |
16.6%
|
| SPECviewperf 7.0 - drv-08 |
2.5%
|
| SPECviewperf 7.0 - dx-07 |
19.8%
|
| SPECviewperf 7.0 - light-05 |
6.9%
|
| SPECviewperf 7.0 - proe-01 |
8.6%
|
| SPECviewperf 7.0 - ugs-01 |
2.6%
|
The performance gains are nothing short of healthy, ranging from 2.6% all the way up to 19.8%. What's even more impressive is that these numbers were obtained on a platform that isn't optimized for DDR400 nor 800MHz FSB operation, so the performance boost we see on the 865 chipset should actually be even greater than what we see here. The 875 chipset is supposed to be an even higher performer than the 865, which may lead to an even greater performance boost than what we've seen here.
As clock speeds ramp up, the benefit of the 800MHz FSB will improve to the point where it's absolutely necessary to avoid a serious performance bottleneck. What's left to look forward to after 800MHz? Intel's roadmaps show a 1.2GHz FSB on the roadmap for use with Prescott's successor - Tejas.
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