Table Of Contents
1: Introduction
2: CPU Architecture
3: SSE2 Instructions & P4 2.2GHz CPU Design
4: Celeron 1.3GHz & Pentium III 1.2GHz CPU Design
5: i82850 Chipset
6: i82845 Chipset
7: CNR & Audio Features
8: D845BG Motherboard
9: Benchmarks
10: Benchmarks Analysis
11: Conclusion

According to this test the Celeron 1.3GHz is as powerful as the Pentium III 1.2GHz and outperforms its predecessor (the Celeron 1.2GHz) by 7%. This is absolutely normal even with a 100MHz advantage the Celeron 1.3 GHz beats the Pentium III 1.2 GHz, indeed the Celeron still suffers from a FSB clocked only at 100 MHz.

Interesting: the Pentium 4 2.0 GHz used with the i845D takes exactly the same time to perform the test than the same CPU used with the i850 chipset. The Pentium 4 2.2 GHz is 65% faster than the Celeron 1.2 GHz. The Celeron 1.2 GHz is almost as fast as the Pentium III 1.2 GHz to complete those arithmetic tests. The Celeron 1.3GHz is faster, by 8% than the Pentium III 1.2 GHz. The Pentium 4 2.0A GHz is 1% faster than the Pentium 4 2.0 GHz according to CPU MathMark 3.0.
 

You'll also notice that the Celeron 1.3 GHz outperforms its predecessor and the Pentium III 1.2GHz. Plus the Celeron 1.3 GHz is hard on the Pentium 4 1.7 GHz heels!

MFLOPS: The Whetstone benchmark is widely used in the computer industry as a measure of performance. Floating-point arithmetic is most significant in scientific, engineering, statistical and computer-aided design (CAD) programs. It is also a small component in spreadsheet, paint and drawing programs. Word processing programs typically do no floating-point computations at all. The Whetstone does a lot of floating-point arithmetic, some memory access, and a little integer arithmetic.

MIPS: The Dhrystone benchmark is widely used in the computer industry as a measure of performance. Dhrystone is a synthetic benchmark, designed to contain a representative sample of operations normally performed by applications. They don't calculate a result of any kind, but they do perform the sort of complicated sequences of instructions that real applications use. The Dhrystone result is determined by measuring the time it takes to perform these sequences of instructions. Simple integer arithmetic, logic decisions, and memory accesses are the dominant CPU activities in most Windows programs. The Dhrystone benchmark makes intensive use of these areas.

The Pentium 4 2.2 GHz is ahead of the race with an amazing result of 208.2 fps. It's 108% faster than a Celeron 1.2 GHz, 2% faster than the Pentium 4 2.0 AGHz, 9% faster than a Pentium 4 1.7 GHz. As you have already noticed the results under Quake III Arena on the i845SDR platform don't really shine, but the results you get with an i845D really rock. Logically the results obtained with an i845D platform are weaker than what you get with an i850 showing how important and vital is the performance of the memory attached to the processor. Once again the Rambus memory imposes itself as the reference memory for Pentium 4 in order to get the best results. The Pentium 4 2.2GHz used with Rambus memory gives results that are 5% faster than the i845D. Notice however that this performance gap between the two platforms could be higher in favor of the i850 is only we had 256 MB of DDR memory.

A Pentium 4 2 GHz used on a i845 motherboard scores 29% better than a Pentium III 1.2 GHz, however it remains 34% slower than the same Pentium 4 2 GHz used on a i850 motherboard. The Pentium 4 2.0A GHz is 2% faster than the Pentium 4 2 GHz (Willamette).
 

The addition of 512KB of cache memory boosts the performance of the Pentium 4 2.0AGHz by 6% over the Pentium 4 2.0GHz. The Pentium 4 2.2GHz used on a D850MV motherboard (with Rambus memory) is faster by 3% than the same CPU used on an Intel D845BG motherboard with DDR memory. A Pentium 4 2.2GHz used on a i845D platform is 20% faster than the same CPU used on a i845SDR motherboard.

Note that 3DMark 2001 outlines a ridiculous 1% performance increase for the Pentium 4 1.7GHz on a i845 SDR platform over the Pentium III 1.2GHz.
 

For our tests we used ZD Business Winstone 2001 1.02. As you can see the Pentium 3 1.2GHz gives a slightly better result than a Pentium 4 1.7GHz used along a i845SDR chipset. The Pentium 4 2.2GHz/i845D couple arrives on top and surpasses the same processor used on a i850 platform due to the fact we used 512MB on the i845D against only 256MB on the i850: indeed ZD WinStone 2001 relies a lot on the amount of memory available on a system. The very interesting thing in this test is the fact the Celeron 1.3GHz beats, in good logic, the Celeron 1.2GHz, the Pentium III 1.2GHz as well as the Pentium 4 1.7GHz (used on i845D, i845SD & i850 platforms) and the Pentium 4 2.0GHz used on a i845SDR platform. These surprising results mean one thing: Ziff Davis Business Winstone 2001 doesn't take any advantage from the Pentium 4 architecture.

ZD Winstone 2001 shows how important is the on-die L2 cache memory a CPU has to offer: the Pentium 4 2.0AGHz is 12% than the Pentium 4 2.0GHz according to the results we got. The Pentium 4 2.2GHz/i845D couple is 40% faster than the Pentium 4 1.7GHz/i845SDR system.
 

For our tests we used Content Creation 2002. This test shows how important the new SSE2 instructions of a Pentium 4 are for multimedia applications. Just like for Ziff Davis Business Winstone 2001, the Pentium 2.2GHz/i845D couple beats the Pentium 4 2.2GHz/i850 only because it has got twice as much memory. The Pentium 4 2.2GHz used with a i845D motherboard is 16% faster than the same CPU used on a i845SDR motherboard. The Pentium 4 2.2GHz outperforms the P4 1.7GHz by 29% (on the i845D platform). The fact the P4/i850 manages to beat the P4/i845D at slow frequencies (1.7/2.0GHz) demonstrate how important it is to have a memory that offers a high bandwidth: the 400MHz of the Rambus manage to fill in the gap of the 256MB handicap our i850 platform has over the i845D (once again our i845D test system had 512MB of DDR-SDRAM).

The Pentium 4 2.0AGHz is 33% faster than the Celeron 1.2GHz. The Celeron 1.3GHz outperforms the Celeron 1.2GHz by 13% and the Pentium III 1.2GHz by 8%. The Pentium 4 2.0AGHz is 2% more powerful than the Pentium 4 2GHz: the gain of performance is quite small which is absolutely normal since 3D WinBench 2000 more likely focuses on the memory, bus and graphics card performances.