SiS 746FX Reference Board Review (3)

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SiS 746FX Reference Board Review (3)
Overclocker 8 Jan 2002

Benchmarking

Memory Benchmarks

SiSoft Sandra 2002

The infamous SiSoft Sandra 2002 is used to test out the memory benchmarks, CPU Arithmetic and Multimedia benchmarks. All the systems are tweak to it's maximum possible settings of CAS 2, 2-2-5.

SiS 746FX ref board running in Async DDR333, DDR400 mode. nForce2 boards runs in Sync DDR266 mode using dual channel 256x2. The FSB of the various boards are :

SiS 746FX Ref board : 134.6Mhz
Shuttle SN41G2 : 133.64Mhz
EPoX 8RDA+ : 133.64Mhz
ABIT KD7 : 133.39Mhz
ECS K7S7AG : 133.34Mhz

There is no doubt that the memory bandwidth of the dual channel DDR boards are excellent. If you look carefully, when we run the SiS 746FX reference board at Async DDR400 mode, the benchmarks shot up to 2025/2092 which is close to the Dual channel bandwidth. It is not too far off but do take note that the FSB is 134.6. Thus we should expect something like 2000/2070 (just a wild guess). We can see that from 133/166 to 133/200, there is a jump of around 2% in FPU and 1.2% in ALU.

In the CPU Arithmetic tests, we found that the nForce2 boards are not so effective in multimedia compared to the Ref boards. Well synthetic benchmarks you say. It looks like the SiS 746FX does yield pretty good performance in non-memory intensive benchmarks.

Over in the CPU Multimedia tests, we can see that the SiS 746FX ref board performs much better in this CPU multimedia tests. So far, it looks cool isn't it ?

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