hafijur :
Both answers are wrong. The Celeron 420 will easily beat out an ancient pentium 4 ht at 2.8ghz. Its not even that close. Also the pentium 4 takes like 3-4x more electricity then the celeron. celeron scores 456 vs 336 of p4 at 2.8ghz.
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Celeron+420+%40+1.60GHz
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Pentium+4+2.80GHz
To put it into perspective an i7 3770k at 4.2ghz takes similar electricity under 100% cpu load to a pentium 4 2.8ghz ht and your 3770k is about 20x faster.
Heck 1.6ghz pentium m's released when p4s were around destroyed p4's at 1/4 of the power consumption.
hafijur :
I remember using a 1.3ghz pentium m system and 1.5ghz pentium m system and a 1.6ghz p4 and 2.66ghz p4 and the pentium m destroyed it and you could not hear it on and had 10 hour battery life in a laptop and played games better even the desktop with 1.6ghz p4 had a lot faster graphics card games like need for speed underground the 1.3ghz pentium m was 2x better then a 1.6ghz p4 and the 1.3ghz pentium m at similar time in 2003-2004 took 1/5th of the electricity. Not only that flash games like teagames ran so much better on a 1.3ghz pentium m then a 2.66ghz p4 and 1.6ghz p4, about 3x faster and was in fluid motion and p4 systems struggled watching videos on pentium m breezed past it.
Now considering intel had technically a 5x better performance per watt cpu's when pentium 4's were released nowadays we are looking at close to over 50x better performance per watt then pentium 4's.
I currently have an i5 3317u in my laptop and it is about 6x faster gflops wise then a 3.8ghz p4 ht and takes 1/8th the electricity to run so close so around 48x better performance per watt then an intel p4 at 3.8ghz. Quite impressive though.
Yes, a 1.6 GHz Intel Centrino (Pentium M) eats 3.2 GHz Pentium 4s for breakfast! I have already visited cpubenchmark.net to make a comparison, but I also know that some CPUs aren't ranked correctly. For example: Intel Core i7-3940XM = 9,820 points / Intel Core i7-3770K = 9,630 points (this is not correct, because those CPUs are exactly the same, the only difference is that the Intel Core i7-3940XM is for laptops and the Intel Core i7-3770K - for desktop systems, everything else is the same)! Another example: Intel Core i7-995X = 10,374 points (Gulftown, 32 nm, 6 cores, 3.6 GHz ~ 3.86 GHz) / Intel Core i7-990X = 9,364 points (Gulftown, 32 nm, 6 cores, 3.46 GHz ~ 3.73 GHz) - a 1010 point difference only for 0.13 GHz higher clock speeds! If you are wondering why I want to know which CPU is better, the Celeron 420 or the Pentium 4 HT 2.8 GHz, here's what happened. My Intel Pentium 4 HT 2.8 GHz broke because of an electric shock which destroyed the motherboard and PSU as well (it was caused by an overclocking failure). I had to buy a new motherboard (with the same socket as the previous one - 775; it was also second hand), 1 GB DDR2 (the previous RAM worked but was DDR1, incompatible with the motherboard), a new PSU and a new CPU (the guy from the shop only had a 1.6 GHz Intel Celeron 420 CPU from the 775 LGA processors). He only told me that it was a 1.6 GHz Celeron and at first this shocked me, but when I found out at home that it was an Intel Celeron 420, I redeemed faith in it. All I want to know is if the new Celeron 420 has higher overall performance compared to my dead Pentium 4 HT 2.8 GHz.
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