SuperCheetah
Posts: 704 +1
Found this over at the Register:
By Andrew Thomas
Posted: 05/03/2002 16:11:36 BST
http://www.theinquirer.net/2_4_4.htm
Pentium 4 2.4GHz chip - due for launch any day now - are pretty good. The Northwood part is built on a 130 nanometre (0.13µ) process which gives benefits in terms of power requirements, heat output and the amount of real estate available on the die.
The shrink from 180nm means that the on die L2 cache is 512K - double that of the earlier P4 Willamette parts. At full power the 2.4GHz Northwood has a thermal design power of 57.8W (2GHz Willamette 75.3W) with a core voltage of 1.5V (down from the 1.7V of Willamette) and our sample peaks at 38 degrees C after six hours of 100 per cent CPU utilisation running the SETI client in the background. Not bad considering exactly the same heatsink is used.
No surprise then that the newer 130nm P4s (1.6, 1.8, 2.0 and 2.2 GHz parts are already available) are finding their way into notebooks as well as desktops, despite warnings from Intel that constraints on heatsink size will invariably mean that the chips spend most of their lives throttled back by their thermal protection circuitry.
On Sandra 2002 tests, the 2.5GHz part returned 4677Mips, 1250 FPU Mflops and 2897 SSE2 Mflops. A reference Athlon XP1800+ delivers 4240Mips and 2124 FPU MflopsiSSE2: 9485 (8370) it/s and Floating Point 11593 (9760) it/s. µ
