Reply 20 of 26, by mothergoose729
wrote:wrote:wrote:So peformance wise, this c3 800 Ezra is more or less a Celeron 300?
Not exact, but at 133mhz FSB the Ezra and Nehemiah CPUs have roughly half the IPC of the pentium 3 when it comes to integer performance.
The FPU performance on the Ezra and Ezra T is pretty bad. Software Quake will run at around 30fps at 640x480 with an Ezra CPU clocked to about 1ghz. The Nehemiah core has roughly double the FPU performance and can achieve higher clocks, but it responds differently to setmul than the Ezra.
Nehemiah runs it's FPU at full clock, so it's better than the Ezra in Quake. Still, I don't think FPU performance is a reason why anyone builds a C3 rig.
It mostly only matters if you are trying to reach into early windows and 98 games. Unreal Gold and Quake 3 runs miles better on a Nehemiah at 1300mhz than they do on an Ezra T at 1100mhz. There are pros and cons to both.
I chose the nehemiah CPU for my slot 1 build.