difference between i5 750 and i5 661

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disneyfan1206

New Member
I am new to proccessors and im not to sure what the difference is between the intel i5 750 and i5 661, and also which one would be better for gaming?
 
disneyfan1206 said:
I am new to proccessors and im not to sure what the difference is between the intel i5 750 and i5 661, and also which one would be better for gaming?
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The i5 661 is a dual-core procesor at 3.33GHz, and the i5 750 is a quad-core processor at 2.67GHz. For gaming, the i5 750 is much more powerful than an i5 661. You see, the difference between a quad-core processor and a dual-core processor is that a quad-core is pretty much just like having two dual-cores on the same chip. This makes it about twice as fast as a dual-core at its same clock speed. A dual-core processor will only receive double the performance improvement at double the clock speed, so, an i5 750 is twice as fast as an i5 dual-core at 2.67GHz, if there was one. The i5 661 is clocked at 3.33GHz. That means it is nowhere close to double the speed of an i5 dual-core at 2.67GHz. In short, in any programs that support 4 cores (most games) an i5 750 will be much faster than an i5 661.
 
Take in consideration turbo-boost - it will increase i5-750 speed in single threaded apps. I think dual core ages have passed, we need them for low budget machines and home theaters. Everything will be optimized for quad cores soon, and I mean real quad cores, not hyper-threading ones
 
BlackRat said:
Take in consideration turbo-boost - it will increase i5-750 speed in single threaded apps. I think dual core ages have passed, we need them for low budget machines and home theaters. Everything will be optimized for quad cores soon, and I mean real quad cores, not hyper-threading ones
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All i5's have turbo. That's what distinguishes the Clarkdale i5's form the i3 models. I'm pretty sure the 661 will be faster with single and double threaded apps.

I agree with bomber though.
 
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Drenlin said:
^ Do keep in mind that the 661 has four threads as well. It's actually not that much slower than the 750, especially considering that you can overclock the piss out of Clarkdales. Take a look:

http://www.tomshardware.com/charts/2009-desktop-cpu-charts-update-1/compare,1396.html?prod[3295]=on&prod[2884]=on
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2 cores and 4 threads does not even equal the performance of 3 cores/3 threads in multithreaded applications. I've tested this.

A real quad core is better, typically you can overclock an I5 750 quite easily to 4ghz 24/7 on air. All applications, single threaded or not will fly with an I5 750 at 4ghz. I know, I used to have one, and an I7 860 too.

Any single threaded app is not very cpu intensive, therefore the gain of a higher clocked I5 661 is not much at all.

The I5 750 is THE best bang for the buck quad core...unless of course you can get the I7 for the same price as mentioned earlier.
 
^ Oh there's no doubting that, I was just pointing out hat the 661 is a lot faster than people were making it out to be. They're much faster than the average dual core.
 
I also vote for the i5 750 Quad-Core Processor over the i5 661 Dual-Core. The i5 661 is just not worth $200 in my opinion. If it were lower than $155 I would say go for it.
 
The i5 661 with hyperthreading is like have a real 3-core CPU. It's better than a dual core without hyperthreading but it won't beat a quadcore.
 
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