So I was forced to make an account here (because I just couldn't seem to find the answer to my question), so I am hoping you all can help me out.
I just bought a new laptop that has the new i7-720QM processor in it. My current home PC uses a Pentium 4 1.6 GHz processor. The i7 that I am getting has a base clock speed of 1.6 GHZ and can be boosted 2.8 GHz. So I understand that those speeds are similar, what I am trying to figure out is how they compare to each other.
I was looking at the system requirements for Bioshock 2, and it says for minimum system requirements it needs a Pentium 4 530, 3.0 GHz processor or better. My question about this is, with the i7 is the 2.8 GHz (boosted) a total output of all 4 cores, or is each core producing 2.8 GHz giving 4 times the processing?
I also realize the i7 is the newer processor, but I can't determine if it is considered better, or even powerful enough, in reference to the game's system requirements.
I hope that I am asking the question right, and I appreciate any insight. Thanks
Cole
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Yes, it's overkill for the game's requirements. Clockspeed is a Layman's measure for CPU performance from the 90s; it's very hard to judge a CPU's performance on a 1-to-1 basis and games still use clockspeed unfortunately.
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Also, how would one compare say an Intel Core 2 Quad and the new i7 processors? Thanks again, I greatly appreciate it!
Cole -
Generally speaking, each new generation of CPUs perform beter clock for clock than the previous generation.
Again, generally, the Pentium 4 is not a well regarded CPU. It is from an era when clock speed was king, and it is designed to run at faster frequencies (largely for marketingpurposes), but that did not necessarily mean that it was a "fast" processor. No disrespect, but I think some of those early Pentium 4 Processors (up to around 2.4GHz?) are some of the worst CPUs Intel ever made.
The Core and Core2Duo CPUs are based on one of Intel's better designs, the Pentium M, or Banias chips. And the i7 is a refinement on that.
Intel now uses a tick-tock cycle where as tick brings a new process and tock is a die shrink.
Pentium 4 ~.90nm
tick core2duo .65nm
tock core2duo .45nm Penryn
tick nehalem .45nm (includes i7)
tock i3/i5 .32nm
The turbo boost does not work the way you seem to think it works, and again, I think Intel is practicing some shady marketing on turbo boost. Most people seem to think that all four cores overclock to 2.8GHz, and the truth is, only one core overclocks to 2.8, a second core over clocks somewhat lower and the other two cores overclock to 1.73GHz.
Regardless, the mobile i7 is a powerful processor, and easily bests your Pentium 4 at 1.6GHz. Basically, the i7 just processes faster per clock.
I'm at work, so the above it rough at the very least, but you get the idea. There is no comparing the Pentium 4 to any CPU you can buy today. -
Would you be able say that a single core CPU could out perform a quad core with single core software? I know that the i7 would out perform a single core in multi-core software. This might help me grasp the idea better. Thanks again.
Cole -
The i7 is a special case since it has a technology which allows it to basically use the amount of cores necessary for a given task. So if a task only requires 2 cores, it'll "shut down"(not for real though) the 2 remaining cores. Well in a nutshell that's what it is at least.
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What I mean was, the Pentium 4 was a borderline marketing sham. Look it runs at xGHz !!! Even if it was not fast. GHz are not like miles per hour. The Pentium 4 did not process very much information per clock cycle.
Even though your Pentium 4 ran at 1.6GHz, there is every chance that at the time, 9 years ago even, I would have preferred a Pentium 3 at 1.13GHz.
I would think/hope you are being blown away by how fast your i7 laptop is compared to your P4 desktop. Enough so that the original question is almost moot. -
Cole -
Anywho, back on topic: an i7 will outperform most everything else out there, across the broadest range of benchmarks. Only in a very few specific cases will it be only slightly slower, but that only means it comes in second place instead of first, not in last place by any stretch -
Cole -
Open up the task manager and what how it distributes the load.
Better software will thread and use all processors.
BTW, you have 4 real cores, and 4 virtual or hyperthreading cores. It looks like 8 cores in the task manager. -
Prepare for ludicrous speed. -
(btw, use the edit button... double-posting is bad netiquitte)
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Cole -
If you got 9 years out of a Pentium 4 1.6GHz, this might be your last computer, lolz -
Cole
Cole -
Just as a quick addition, the new Core i series are generally considered to be about 20% faster than the previous Core 2 series for a given clockspeed. Thus, your i7-720QM at 1.6 GHz can be (very roughly) compared to a 1.9 GHz Core 2 chip. This, of course, ignores special features like turbo-boost, hyper-threading, or whatnot.
System Requirements and the New Intel i7 Processor
Discussion in 'Hardware Components and Aftermarket Upgrades' started by colejustesen, Feb 16, 2010.