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I3/I5/I7

Soldato
Joined
6 Feb 2004
Posts
7,765
Location
Rugeley
I have in sig and i am totally out of sync of what is good, i game a bit and will be playing BC2 lots, i encode a bit also and would like to see a improvement in times on that for sure but i am in no way a heavy encoder.

I5 has my attention but does the loss of HT make that much of a difference and for my needs is a Quad really needed or should i just keep what i have for now, looking at something a bit less power hungry also.
 
Because Core i5 750 is much faster than Q6600, and Core i7 920 is even faster than Core i5 750?

Jabbs, I'll post some data/score for comparison here so it would be easier for you to decide:

Handbrake H.264 Video Encoding
Q6600@stock 2.4GHz: 1,305
Q6600 [email protected]: 1,915
i5 750@stock 2.66GHz: 1,937
i5 750 OC@ 4.15GHz: 2,852
i7 920@stock 2.66GHz: 2,144
i7 920 OC@ 4.08GHz: 3,248

Cinebench R10
Q6600@stock 2.4GHz: 9,817
Q6600 [email protected]: 14,735
i5 750@stock 2.66GHz: 14,114
i5 750 OC@ 4.15GHz: 20,675
i7 920@stock 2.66GHz: 15,206
i7 920 OC@ 4.08GHz: 23,283

WPRIME 32M (in seconds)
Q6600@stock 2.4GHz: 18.047sec
Q6600 [email protected]: 11.734sec
i5 750@stock 2.66GHz: 11.796sec
i5 750 OC@ 4.15GHz: 8.004sec
i7 920@stock 2.66GHz: 9.125sec
i7 920 OC@ 4.08GHz: 5.991sec

Crysis (DX10, 64-BIT, HIGH, 1,680x1,050) with HD5870
Q6600@stock 2.4GHz: 12-35fps
Q6600 [email protected]: 24-45fps
i5 750@stock 2.66GHz: 20-50fps
i5 750 OC@ 4.15GHz: 33-55fps
i7 920 and OC: don't have data, but should be little higher than i5 750

I would not recommend dual-core CPU because games are now leening toward favouring quad-core over dual-core, as you can see the test result of
a 4870x2 running with a Phenom II 550 OC to 3.8GHz at dual-core vs quad-core (unlocked cores) here:

http://www.overclock.net/pc-games/659536-contagion-review-dual-core-vs-quad.html

You can clearly see that in Battlefield Bad Company 2...the Quad-core is about 50% higher in minimum and maximum frame rate, and about 100% higher in average frame rate.

Considering you are not a heavy encoder, Core i5 750 system upgrade would probably suit you the best and it cost just around £350 (CPU £150, Gigabyte motherboard that can overclock CPU to 4GHz £85, 4GB DDR3 1,600MHz RAM £85, CPU cooler £30).

If you don't mind paying more to be may be up to 10-20% faster, a Core i7 920 system upgrade would cost around £505 (CPU £220, Gigabyte motherboard that can overclock CPU to 4GHz £135, 6GB DDR3 1,600MHz RAM £120, CPU cooler £30). If you pay another £20-30 extra for the motherboard, you would have two USB 3.0 ports as extra.

While i7 920 would obviously fastest, it does cost £150-£180 more. While it may be about 10-15% faster than i5 750 in encoding, the increase in frame rate for games comparing to a i5 750 (if we are comparing them at the same clock speed) would most likely be minimal with probably 2-5fps in difference at most.

As for power consumption, Core i5 750 is lower than a Q6600.

Great post thanks certainly shows the numbers and what a overclocked I5/I7 can do, certainly given me some thinking.
 
I don't get the opportunity to upgrade that often and when it does come i like to take advantage its all well waiting for the the new cpu's but that's a long way off atm next year.

I have £450 to spend and would prefer I7 stuff what do you guys thing as i said i am well out of touch with pc stuff just lately.
 
Trouble is i added some prices up and i don't think you can get it for that money, could do with some input on mobo/ram etc really have no clue about I7.
 
If any of you were building a rig now would you take the I7 920 or go for the I7 860, would the loss of Tri-Channel memory make a mega difference.
 
I want something pretty much the best i can get for my money and want it to last as long as possible before upgrading again.
 
Will my cooler be adequate for whatever i went for ? i like to overclock hassle free and want something that is capable of reaching 4gig without a lot of messing.
 
I got £200 in the bag for my old stuff to a mate, would my 600w psu do the job and the H50 cooler just thinking of the extra heat.

I think am heading more towards the I7 860 atm for the lower power usage as the 920 is rather hight.
 
Its looking like that listed below tbh, I hate pc's when you got the upgrade bug as it pulls you one way or the other, one time its I5 then i think i want HT on it for encoding etc so I7 haha, then its back to the 860 then back to I5 never ending circle, i want something that will do me for a good few years so i think the extra spent might be wise.

Will my H50-1 cooler be sufficient to cool the 920 i would like to get as close too 4 gig as possible.


This is over your budget, but you could sell off your old parts to help fund it.

i7spec.jpg


Thats the route that i took when upgrading from s775.
 
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Its more that the opportunity has come at the right time tbh, mates pc packed in so he needs new stuff and he asked about mine, i got £200 for it so the upgrade isn't that major and it will last me for a few years yet, with the added bonus i guess of being able to put another 5850 in down the line when they much cheaper.
 
See on there to me it shows there is nothing between them ok the 860 is stock 2.8 compared to the 920's 2.66gig so i would expect it to be faster but in the real world would a user notice any difference going from 920 to a 860.
 
In the end i went for this setup common sense came in the end, i was unsure over the board though as the Asus i had been advised to get had gone out of stock but a chap posted a review over this board saying he got 4ghz easy so made sense.

asdfasdfti.jpg
 
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Probably not lol but I got them I guess, I don't mind the extra but I guess I could have saved that mone.
 
Great find i only went for the ud4 as i had been reading some reports of people having issues with the UD3 and when i read that review of someone buying it on this forum and hitting 4 gig on stock volts i thought maybe i get lucky.

But yeah i will deffo look into that would running 2x8 with say 2 5850's give me a good performance boost over 1 card at 16.
 
Done a bit of messing and got it up to 4 gig need to do some proper testing yet though, and more research but so far no problem at all.
 
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