9. Synthetic Benchmarks

SiSoft Sandra 2002 Benchmarks: CPU, Multimedia And Memory

We have included the results for the Evo N1015v for comparison. This machine is also powered by an Athlon XP 1800+ (1533 MHz). Under AC power, each machine is virtually as fast as the other. In battery mode, using the "maximum battery" power scheme, the PCG-NVR23 trails behind the Evo N105v somewhat. The reason for this is the lower CPU clock frequency of 400 MHz, as compared to 533 MHz. Sony's engineers chose a 3X multiplier for this power scheme, while the Compaq uses 4X.

Here, we see the superiority of the VIA chipset memory interface over that of the ATi IGP320M. With a measured bandwidth of nearly 2000 megaBytes per second, the performance of the KT266A memory interface is relatively close to the PC2100 DDR RAMÆs theoretical maximum of 2100 megaBytes per second. Selecting the "maximum battery" power scheme has a negative effect on memory performance.

This is explained by the low CPU speed (400 MHZ) of this scheme. For day-to-day use, this power scheme should only be used under exceptional circumstances.