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i5 750 vs i5 2500k

post #1 of 7
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I have a i5 750 in a Gigabyte H55n-udb3 with 4gb ddr3 g skill eco ram. I also have a i5 2500k bnib that im going to do a 2nd build on. how much performance am i looking at going from the 750 to 2500k? the slowest of the 2 is going to my son for his room. The 2500k will be paired with a Asus Sabertooth or ASUS P8P67 DELUXE if i can find a decent deal with prob the same memory thats in the 750 build. Also, why is there no decent x16 sli motherboards?? even the max IV extreme is only x8 sli? why is that?
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Haf of an 2500K
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post #2 of 7
http://semiaccurate.com/2011/01/02/intel-core-i7-2500k-review/

Comparison of the 2. You will see better performance on the 2500k just because it OC's like no tomorrow.
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post #3 of 7
Honestly not much difference in real world use, and the difference between x8 SLI and x16 SLI is very little. You will see more X16 boards with ivy bridge and it's socket, much like you did with 1366.
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post #4 of 7
the MIVE and Gigabyte's GA-P67A-UD7 are the only SB boards with x16 SLI (those are via the NF200 chip). Also clock for clock Sandy Bridge will be the fastest, not to mention you can OC them up to 5Ghz on Air.

*EDIT*
and the first Ivy Bridge chips will work on socket 1155.
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The Raven
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post #5 of 7
Quote:
Originally Posted by Blue Destroyer;12742445 
I have a i5 750 in a Gigabyte H55n-udb3 with 4gb ddr3 g skill eco ram. I also have a i5 2500k bnib that im going to do a 2nd build on. how much performance am i looking at going from the 750 to 2500k? the slowest of the 2 is going to my son for his room. The 2500k will be paired with a Asus Sabertooth or ASUS P8P67 DELUXE if i can find a decent deal with prob the same memory thats in the 750 build. Also, why is there no decent x16 sli motherboards?? even the max IV extreme is only x8 sli? why is that?

You answered your own question there.

If this boils down to the slowest CPU going to your son's rig, you already know from the get-go that the i5 750 is slower than the 2500k.

The i5 750 is clocked @ 2.66ghz, and even if the 2500k was clocked at the same speed the 2500(k or non-k) it would be faster just because of the better new Sandy Bridge architecture.

I don't see how this is even a question worth of any thought since you already answered it in the OP.
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post #6 of 7
The Raven
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The Raven
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post #7 of 7
I'm having the same dilemma, I have a i5-750@4GHz on a P55a-UD3 runnig on a X25M-80GB, and purchased an OCZ Vertex3 120 GB. while still on sata2 the AS SSD bench perfomance was increased from 240 on Intel to 370 on vertex the real perfomance(550) can be only achieved by having it attached to a proper P68 or Z68 sata 3 connector. Taking into account that 2500k overclocks like crazy, a regular oc is 4,5 GHz, I have this dilemma to spend more money on a 2500k+Asrock Z68 Pro3 and selling my current mb+cpu. Plus I do not recall if Megahalem backplate fits 1155 socket too, or it needs to be separately purchased.

regards
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