The new Celeron is an appalling under-performer, and marks the return of this strange on-again, off-again product line to its original tradition - that of promising far, far more than it delivers.
As you can see, the 1.7GHz Celeron is rouighly equal to Duron 1000 or an old-style Celeron 1100. The significantly cheaper Duron 1100, 1200 and 1300 all out-perform it comfortably, as does Intel's own Celeron 1200.
Nor is the poor performance limited to business applications:
You will see the usual relativities, with just the odd task where the 1.7 does well - the same tasks, of course, where the old P4 did well. For that is what the new Celeron is: the
old P4, shorn of some cache. The 1.7 and 1.8 Celerons are
not beneficiaries of the much improved Northwood core, or the .13 micron process. They are 128k cache versions of the hot, slow Willamette core P4, but even slower because of the smaller cache. (And remember that all P4 family chips, for reasons I still don't fully understand, have
tiny L1 caches, so are more dependent on their L2 cache than the Athlon/Duron chips with their huge 128k primaries, or the older P3-core Intel parts which at least have 32k.
The Celeron 1.7, in short, is a dog, a chip which is firmly in the tradition of the original cacheless Celeron 266, and the 66MHz bus-crippled Celerons in the 500 to 766MHz range. It has nothing in common with either of the two well-performed Celeron families (the 300A and its successors, and the P-III based 800 through 1200 parts).
Avoid.