Dell T800r vs Dell 4100 866 - estimated performance difference

[peemo]

I'm getting flack from my IT dept at work for insisting on the Dell 4100 over the Txxxr. They have a T800r for me but I told them to give it to someone else. I need to estimate the performance difference between the two machines:

T800r:
BX board + 800Mhz CPU @ 100Mhz with PC100 RAM

4100:
i815e board + 866Mhz CPU @ 133 with PC133 RAM

Assume the same video card and that all RAM is CAS3 ECC.

Thanks for any and all estimates.

 

[KarsinTheHutt]

Ok, the Coppermine scales pretty well, and the RAM is faster, so I'd say a 10% difference in speeds, assuming the hard drive isn't a bottleneck.

Personally, I'd go for the 4100. I don't think it costs that much more than an XPS T, and the technology is simply better. It really depends on what your job requires...

 

[peemo]

Thx KTH,

Yeah, I had already decided to insist on the Dell 4100 and am trying to justify it to my IT dept. The CPU speed difference is 8.25%, the bus and memory speed difference is 33%. It's a no-brainer to me. The XPS Txxxr has been phased out since the BX chipset is now obsolete 😉. But how does 8% CPU and 33% FSB & memory only get me a 10% improvement?

I run large spreadsheets (20-30MB) with multiple lookups and matrix calculations; I use Mathcad; Oracle, Ingres and MS SQL Server databases on Alpha platform via ODBC and TCP/IP; very little graphics application.

 

[KarsinTheHutt]

Its just a guess 😀
Could be more that 10%, but I would say 10% at the very minimum. As the i815 chipset drivers mature, it should perform even better.

 

[Horsepower]

I've been dealing with Dell on a 4100 at 933, but I think I'll wait until it crosses the gig line.
XPST700r 256 ram