Intel Core i5 Performance

[bowman]

Are you sure it's not the same FUD that was spread prior to i7 launch? I thought Intel's take is that motherboard manufacturers have to decide whether to enable or disable overclocking features. In fact I expect i5 to be just a lower binned i7, when it comes to overclocking.

Blauhung works at Intel so I doubt he'd want to spread negative misinformation about Intel products.

http://www.xtremesystems.org/forums/...4&postcount=90
http://www.xtremesystems.org/forums/...&postcount=164
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http://www.xtremesystems.org/forums/...87&postcount=8
http://www.xtremesystems.org/forums/...3&postcount=70

If that doesn't convince anyone that there's a serious potential for these chips being solely candidates for Dells and laptops.. I don't really know what will.

[msgclb]

I ran some comparisons with my i7 920 at the i5 settings. In 2 of the 3 benchmarks that I ran my 920 lost.

CPU Multi: 16
BCLK Freq: 133
DRAM Freq: DDR3-1066
Timing: (Auto) 7-7-7-20-1T

SuperPi 1M
i5: 19.017s
i7: 19.350s

wPrime
i5 32M: 11.42 sec
i7 32M: 12.013 sec

i5 1024M: 352.199 sec
i7 1024M: 363.435 sec

3DMark Vantage

CPU Test #1
i5: 1842.19
i7: 1858.49

CPU Test #2
i5: 17.45
i7: 112.03

CPU Score
i5: 13271
i7: 33061

[Spacemaster]

This is great news

[VOID WARRANTY]

the real question is.....will it play gta4...i want bech marks if dosnt run gta4 at 55+ frames i aint buying...,,

[kromosto]

ok this is confusing for me to decide buy a i7 or wait i5. i understand the technical differences but what is that all vantage cpu test 3# point difference.

[Spacemaster]

I ran some comparisons with my i7 920 at the i5 settings. In 2 of the 3 benchmarks that I ran my 920 lost.

CPU Multi: 16
BCLK Freq: 133
DRAM Freq: DDR3-1066
Timing: (Auto) 7-7-7-20-1T

SuperPi 1M
i5: 19.017s
i7: 19.350s





wPrime
i5 32M: 11.42 sec
i7 32M: 12.013 sec

i5 1024M: 352.199 sec
i7 1024M: 363.435 sec





3DMark Vantage

CPU Test #1
i5: 1842.19
i7: 1858.49

CPU Test #2
i5: 17.45
i7: 112.03

CPU Score
i5: 13271
i7: 33061

Do you disable PHYSX in driver for vantage test?

[STaRGaZeR]

Do you disable phisic in driver for vantage test?

Obviously not, those points are impossible at those clocks without PhysX.

[Spacemaster]

Obviously not, those points are impossible at those clocks without PhysX.

This image explain the situacion (this is with no PHYSX driver)

[Donnie27]

ok this is confusing for me to decide buy a i7 or wait i5. i understand the technical differences but what is that all vantage cpu test 3# point difference.

Now you know why Intel is shipping them 7 months later. Their biggest competition is themselves. Not i7 vs. i5, but i5 vs. Yorky and etc...........

Blauhung works at Intel so I doubt he'd want to spread negative misinformation about Intel products.

If that doesn't convince anyone that there's a serious potential for these chips being solely candidates for Dells and laptops.. I don't really know what will.

Multi-Quote edit!
He did say "could lock" and not have locked. He also said he couldn't disclose any real info that wasn't already known. One comment nailed it! It went something like, who cases since we're not a large enough part of the market to matter anyway.

i920's biggest problem is most folks selling stuff to us thinks that enthusiasts means; "Folks with more money than Brains". I stand by comments made in that other threads as well. Once we were spoiled by post Dot-Bomb crash prices. Now they (the companies) are spoiled, They got that way from folks running out an buying $400 single socked motherboards.
$200 sound cards,
$250 Killer NICs,
$750 Video card and saying $500 video cards are acceptable
Yes and AMD's sales of X2 without a model selling for less that $350 until Intel forced them to. That's a fact, not a Fanboy comment of opinion.

I just priced one from Newegg for a friend. 6GB of DDR3-1333 for $190, MSI Mobo $224 and $299 for the C-i7. Newegg prices from Dec-9-2008 1508hrs. RAM being the same and one VAR told me, AMD-PII $225 and $130 for the Board, sorry, I'm on the Phenom 2 wagon if I didn't just say screw both and get a Q9550 LOL!

[msgclb]

Do you disable PHYSX in driver for vantage test?

I completely forgot about the PhysX driver. I knew there had to be some reason for those Vantage CPU scores.

3DMark Vantage

CPU Test #1
i5: 1842.19
i7: 1844.89 (no PhysX)
i7: 1858.49 (with PhysX)

CPU Test #2
i5: 17.45
i7: 17.27 (no PhysX)
i7: 112.03 (with PhysX)

CPU Score
i5: 13271
i7: 13249 (no PhysX)
i7: 33061 (with PhysX)

[Donnie27]

I completely forgot about the PhysX driver. I knew there had to be some reason for those Vantage CPU scores.

3DMark Vantage

CPU Test #1
i5: 1842.19
i7: 1844.89 (no PhysX)
i7: 1858.49 (with PhysX)

CPU Test #2
i5: 17.45
i7: 17.27 (no PhysX)
i7: 112.03 (with PhysX)

CPU Score
i5: 13271
i7: 13249 (no PhysX)
i7: 33061 (with PhysX)

Dang!

[Spacemaster]

Now is ok! It appears to me that i5 will bee nice CPU

[George_o/c]

WTF ? I went carefully through these photos, like 10 times ! i5 is faster than i7 in SPi 1M / WPrime 32M & 1024M / Vantage CPU test ?

Is that normal ?

[Spacemaster]

WTF ? Did I not watch carefully these photos ? i5 is faster than i7 in SPi 1M / WPrime 32M & 1024M / Vantage CPU test ?
Is that normal ?

It seems likely

[kromosto]

so my answer is wait for i5 then

[Spacemaster]

I think that most important question now is "how much i5 can overclock"?

[George_o/c]

But why is that happening ? ... Shouldn't it be the exact opposite ?

[dan7777]

i7 gets my vote and i think Q-3 the price of i7 will be good

[dduckquack]

Because 2x1GB and 2x2GB is so impossible? (And look at CPU-Z..channels..DUAL)

Read the difference above...

Lynnfield prototype board:

whats the small slot beside the DIMM?

[Blauhung]

wow first time i've seen i5. is it same tech as i7, except only 4 threads?

The die is also physically different then Nehalem (Bloomfield/Gainstown). Slightly different memory controller with the 2 channels, and QPI is removed and replaced with the PCIe controller. Die is approximately the same size.

Graphics aint latency dependent. It wouldnt be that much of a change either in latency due to the already far traces I guess. So honestly I would say 0 difference.

Well not just shorter traces, but 1 fewer hop as all the data is sent from the die directly to the card. But still I agree with you on the fact that any difference should be well within the error.

Blauhung did substantiate the Lynnfield OC woes rumors somewhat, so who knows. If it turns out it does overclock it should be a great buy, triple channel is quite pointless. PCI-E on-die is also way cool.

It's still all about finding a lever to push up a reference frequency.

[Blauhung]

whats the small slot beside the DIMM?

SO-DIMM, laptop memory i believe.

It's a validation board so they are testing everything.

[fiveprime]

I'm confused as to the purpose of this chip, the bottom line Ci7 is not all that expensive, and prices will drop as time goes. Not to mention the Ci7's performance is much better for a slightly higer cost.

[Tonucci]

The price difference is probably going to be big enough, just not on launch day. It will be the mainstream solution to slowly replace core 2 quads. Give it a few weeks/month after release and you will see the price difference in mobos, cpu and mem. Cheaper platform all around, without alot of compromises.

[Hornet331]

I'm confused as to the purpose of this chip, the bottom line Ci7 is not all that expensive, and prices will drop as time goes. Not to mention the Ci7's performance is much better for a slightly higer cost.

Ci5 will replace the P45-P43 S775 boards. I doubt you will see many Ci7 boards below 200€, and for the mainstream especial for the OEMs thats to much money to spend only on a motherboard.

Ci5 boards will be in the 100-200€ range and everything above will be for Ci7. (Bling bling editions are an exception )

[Blauhung]

Ci5 will replace the P45-P43 S775 boards. I doubt you will see many Ci7 boards below 200€, and for the mainstream especial for the OEMs thats to much money to spend only on a motherboard.

Ci5 boards will be in the 100-200€ range and everything above will be for Ci7. (Bling bling editions are an exception )

What he said, i5 boards (was that P55?) only require a single "bridge" chip (Ibex Peak) that pretty much only has functions of a south bridge. There is no longer any north bridge. This reduces the total cost of silicon per board. Add the fact that it's only using 2 channel memmory and then you can reduce the ammount of DIMM slots and traces from/to the socket. Also with far less components on board, the power delivery requirements are dropped way down and you need far fewer expenditures in the way of power delivery circuitry.

Finally, with all these reductions, mobo makers can do this all on 6 layer PCB's rather then 8 cutting costs by a final huge ammount.

So even though the cost per die to manufacture Lynnsfield/Clarksfield is pretty much the same as Bloomfield/Gainstown. The cost of the core i5 platform as a whole is greatly reduced from the end user standpoint.


edit: Oh yeah, and one more thing. I will be willing to bet that at the platform level, we will see on the order of a 10% power reduction between i7 and i5 at equal clock speed's and performance.