SiS’ Xabre

Intel’s DDR-based Motherboard

Athlon XP 2600+

The Latest Ultra360 SCSI Drive 

SiS 648 Chipset-based Motherboard

Video cards in general conjure up the images of Nvidia and ATI in most people’s minds, as they have the lion’s share of the market. SiS could very well change all of that with their latest introduction, the Xabre. While the Xabre is not as advanced as the GeForce4 or the Radeon 9700, it does stand up pretty well compared to the GeForce2. And since the TNT/GeForce2/ Radeon 7500 are the largest selling products in the Indian market anyway, it could potentially put a dent in the aforementioned companies’ bottom lines.

Its the first
to support AGP 8X

Snapshot
SIS XABRE
Meant for:
Mid-range gamers
Feature:
DirectX 8.1 compatible, 250 MHz GPU, 500 MHz memory, AGP 8x
Pros:
Excellent performance
Cons:
Possible driver issues
Contact:
Silicon Integrated Systems, Taiwan
Tel:
886-2-89131168
Web site
www.sis.com.tw

The Xabre will be introduced in three varieties: 400, 200 and 80. What we tested is the 400, which is the best of the crop. Based on a 0.15 micron manufacturing process, its GPU runs at 250 MHz and memory at 500 MHz effective (250 MHz DDR). There are no vertex shaders, but it does have 4 pixel pipelines with 2 texture units per pipeline like the GeForce 4. It has full DirectX 8.1 compatibility, and is the first card in the market to support AGP 8x—something whose advantage remains to be seen. Our reference card provided by SiS also had digital and s-video output ports.

We tested this video card on a 2.8 GHz P4 with a SiS 648 motherboard and 256 MB DDR-RAM. Comparison was done with a GeForce2 GTS that we used in the SiS 648 review last month. In both QuakeIII Arena and 3DMark2001, the Xabre outperformed the GeForce2 GTS by a wide margin. However, in Serious Sam, its performance dropped quite drastically. Since the Xabre is still in development, it is quite possible that there are driver issues that are holding it back here. We would expect these to be ironed out by the time the Xabre actually hits the shelves.

The Bottom line: We are impressed by the Xabre but can’t yet comment on how good a purchase it will make since we don’t know the price. If it is priced anywhere around the GeForce2 or even a little higher, it will make an excellent video card.

. QuakeIII Arena Serious Sam 3DMark2001
SiS Xabre 184.3 82.2 7433
GeForce2 GTS 133.7 92 5238
All tests done at 1024*768*32 resolution

Anuj Jain at PCQ Labs

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