Intel Core i5-750 review on PCCentre

[superpyton]

After a successful premiere Phenomów II, AMD managed to once again return to favor. Made in the 45-nm Phenoms II fit very well in the gap in the market and although performance they could not compete with Intel Core i7, it fared quite well they are Intel Core 2 Quad on the 775 platform Response to Phenoms II is to be the Intel Core i5, whose premiere is to be held September 8. Today we present one of the first tests, Core i5 (...)

More you will find here (in polish) or here (translated to english).

Test platform:

• Core i5 750 + MSI P55-GD65 + Transcend AxeRam 2x2GB (1333MHz 8-8-8-24 1T)
• Phenom II 955/965 + Gigabyte MA790XT-UD4P + Transcend AxeRam 2x2GB (1333MHz 8-8-8-24 1T)

Here's some results (czas = time, punkty = points):







One core:


All cores:


One core:


All cores:

[sholvaco]

Anyone care to explain the discrepancy between 3DMark 05/06 vs. vantage CPU scores?

[ajaidev]

Excellent review, but they did not OC the chip till 3Ghz. I would have loved to see how it performs at 3/3.2Ghz.

This review tell us at stock 750 is not that good but when OCed it can put punch quite hard. But Some tests were won by PhII 955 like the 7zip, Blender, pro ray, etc.

The dam review is half baked "I hate this a similar thing was done when PhII 940 came out the review site released the results in parts. I am so looking forward to games and overclocking parts. Also they have no power figs for the i5 750 @ 2.8Ghz.

[Helloworld_98]

I wonder why the Phenom II's are so good when it comes to multi-threaded apps, especially multimedia.

[Chad Boga]

Do these 3DMark bench's have any relevance to how your CPU will perform across the board on various apps, or do they constantly get used because lots of people have them?

I really hate seeing them and Sandra benches.

[Jamesrt2004]

so i5 wins in crunching numbers and synthetics, and the amd's win @ media tasking stuff

although I suspect at both max oc's they will probably be neck and neck....


imo go for whatever one you can get cheaper they trade blows .... and in games i supsect the gaps will be even smaller!

[mAJORD]

I wonder why the Phenom II's are so good when it comes to multi-threaded apps, especially multimedia.

Well, firstly. I don't think these results are quite right. I expect to see more performance from lynnfield, single and MT.. perhaps turbo mode was disabled?

but if that's not the case, you WILL see a lower than normal multi-threaded "scaling" on the i5 because:
A.Turbo mode means its single threaded performance is higher than when all cores are loaded and it's not running at 3.2Ghz.

B. it has no hyperthreading, which masked that effect on i7 (and some)

edit.. @ Chad.. the review has more app's than what the OP posted, for what it's worth

(Still don't think this review is quite right)

[saaya]

Anyone care to explain the discrepancy between 3DMark 05/06 vs. vantage CPU scores?

good question... wondered the same...

and yeah, way too many synthetic tests for my taste...

[Milans]

Well, firstly. I don't think these results are quite right. I expect to see more performance from lynnfield, single and MT.. perhaps turbo mode was disabled?

Turbo mode was disabled. All cores worked at 2,66-2,8 all the time. Remember that PII works at 3,2 and 3,4 GHz and memories were set on 1333MHz CL8.

I'm going to run benches on 750 at 3,2 GHz, but you have to wait few hours

[Calmatory]

Do these 3DMark bench's have any relevance to how your CPU will perform across the board on various apps, or do they constantly get used because lots of people have them?

I really hate seeing them and Sandra benches.

Not any more or less than any other benchmark. It is impossible to make a generic benchmark which would tell the performance over various applications.

[kl0012]

Hmm... I'm little confused. 20% higher performance for 5% higher frequence (I5-750 2.66 vs. 2.8)...? What perf should we expect at 4GHz?

[Milans]

right. this time should be ok - 750 @ 2,66 gets 20635. thanks for your comment

[informal]

Hmm... I'm little confused. 20% higher performance for 5% higher frequence (I5-750 2.66 vs. 2.8)...? What perf should we expect at 4GHz?

You are looking at one isolated case(3dmark 05 cpu test). Probably the limit is somewhere in the serial link bw as you can see that it gets better by pushing the serial link up.

All in all ,solid performer.AMD's lineup is holding pretty well though,even the 955BE. One more speed bump in the Q4 and they will cover all but the very high end i7s.

edit:

right. this time should be ok - 750 @ 2,66 gets 20635. thanks for your comment

Ah i see it was an error in the chart.

[xPliziT]

lol, thats what came to my mind when i saw the graphs....

"Intel core i5 - a CPU built for SuperPI !"

[gosh]

Turbo mode was disabled. All cores worked at 2,66-2,8 all the time. Remember that PII works at 3,2 and 3,4 GHz and memories were set on 1333MHz CL8.

L3 cache on i5 works at the same speed as the cpu.
L3 cache on Phenom II works at 2.0 GHz

[Chri$ch]

L3 cache on i5 works at the same speed as the cpu.
L3 cache on Phenom II works at 2.0 GHz

L3 cache is clocked as the NB (Uncore), so it´s 2.13Ghz on i5.

[Glow9]

Got to say interesting review, AMD held it's own. I imagine it will in most reviews until [T]ardOCP's will have their AMD comparison only scoring 1/2 the performance of Intel as per usual.

[informal]

^^Yeah Kyle's reviews of AMD cpus are just out of this dimension

[Dami3n]

Good review, but i want to see some benchs with 2 gpus to see how good P55 works with the 16(8x/8x) lanes limitation.

[gallag]

Why disable turbo mode? Its not like it is a clock for clock comparison and turbo is a big selling point with i-5.

[ajaidev]

The x264 part got finished it seems:-





I think the first one is 1 pass and the second one is 2 pass. PhII does quite well in 1 pass even against i7's but it losses its air in 2 passes.

[Smartidiot89]

Can someone explain the hype about Core i5 750?

If you have a C2Q and/or AM2+/AM3 system why in the name of something would you "upgrade" to a Core i5 750?

Core i5 750 isn't that much of an "upgrade" I would say get atleast Core i7 860/870 then we can talk, why waste money on a new quad-core without hyperthreading? For people with dual-cores I might see it worth it (although you could just dropin a new CPU into your current platform much cheaper if you desperatly want a Quad).

This post is meent to be constructive so don't flame me just explain why people are so hyped about this cause I really don't get it personally.

[Xoulz]

Can someone explain the hype about Core i5 750?

If you have a C2Q and/or AM2+/AM3 system why in the name of something would you "upgrade" to a Core i5 750?

Core i5 750 isn't that much of an "upgrade" I would say get atleast Core i7 860/870 then we can talk, why waste money on a new quad-core without hyperthreading? For people with dual-cores I might see it worth it (although you could just dropin a new CPU into your current platform much cheaper if you desperatly want a Quad).

This post is meent to be constructive so don't flame me just explain why people are so hyped about this cause I really don't get it personally.

Over-all system improvements... P55 -VS- P45

[ajaidev]

Over-all system improvements... P55 -VS- P45

You are willing to spend money for a new CPU + new mobo + DDR3 just for "improvements" huh

Overclock a old C2Q on P45 and it will compete with a i5 750

[haylui]

is it safe to say that i5 is at 400MHz advantage over PII x4 clock to clock?