Ok CPU VS CPU in regards to video encoding and such

[dinkob]

I ended up having two laptops running some tests on.

One is a Pentium 4M 1.8 512 DDR 2100 running Windows 2000
The other is Celeron M 1.4 512 DDR 2700 running Windows XP Home (which should be equivalent to P4 of higher number but not sure which one as they are clocked differently if I am not mistaken)

Both notebooks are set to Desktop (Always on).

CCE Basic 2.7.04 was used to conduct the test. I used a video of 352x240 size resize and encode to DVD MPEG-2 (just for test, I would never do this for my videos).

First Pass Pentium 4M reached the speed of 1.00 even with such encoding although it started slowly. Celeron started of Fast but never went above .95.

Second Pass Pentium 4M began steady at .56 and ended up at about 1.02 speed.

Celeron M began at .18 and never went above .68 (took twice as slow).

Afterwards I opened up internet explorer. It took three times as long on Celeron to open it up although they both were somewhat complaining about starting this application (hard disk was under lot of "effort").

Therefore besides clock speed and L2 Cache it leads me to think that something else is missing on Celeron Mahcines.

I used a CPU-Z 1.30 to run quick analysis. One thing that was different was Associativity and Latency on these processors (all other values were just about close while Celeron had a prefferable faster memory).

Pentium had no Latency, while Celeron had 5 ms latency and less associativity (4-way VS 8-way).

Would my judgement that besides L2 cache something else is *missing* on celeron be correct?

(P.S. Pentium M at work was the only out of tested 6 that also showed Latency - Latitude D600)

Pentium 4M also gets VERY HOT but at the Memory area not the CPU (Latitude C640)

[guns1inger]

Celeron's don't have the same floating point calculation capacity or accuracy as a full pentium. As video encoding can be highly mathemtical in nature, this may contribute the slow performance of the celeron. Basically, celeron's are really only of use for office applications and browsing, and not much else