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We benchmarked all of these systems with their related power-saving and performance-affecting features enabled: Cool’n’Quiet, SpeedStep, Turbo Mode, C1E. At idle, we let each configuration sit for 30 minutes before taking a measurement from the wall for the entire platform. Under load, we fired up Prime95 with the maximum number of threads per processor (eight for the i7s, four for the Core 2 and Phenom II) and FurMark to tax graphics.
At idle, AMD’s Phenom II X4 955, which scales all the way back to 800 MHz, uses the least amount of power. If you look back to our Phenom II X4 955 review, where we were forced to test with all of those extras turned off, the 955 actually used more idle power than Intel’s Core i7 920. Now AMD has a measurable advantage, besting all of the i7s and Intel’s Core 2 Extreme.
With load applied the 955 matches Intel’s Core i7-920. And, as you can see from another comparison to our last Phenom II review, using FurMark instead of the Vantage Perlin noise test taxes these platforms even harder. Not surprisingly, the Core i7-975 Extreme we’re testing today is the highest power consumer, though it doesn’t use much more juice than the Core 2 Extreme. The i7-950 falls right between the Core i7-920 and i7-965 Extreme, as expected.
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I've never seen anyone saying that the Phenom II is faster than any Core i7...
Doesn't make any difference with games
The i7's disadvantage in Far Cry 2 is well-known. That it gets beat in HAWX is something we only discovered this time around. In everything else, it's the faster CPU.
Are we going to see a price reduction in the 940 or the 965 that gives me any reason to purchase them over the 920?
Not enough to warrant spending an extra $200 or more, in my opinion.
Good thing I didn't shell out for the 965 yesterday.
Oh wait, I don't have unlimited cash, so I won't be shelling out for the 975 any time soon either . . .
Those game results look like you ran into serious GPU limits. As a result I think you may have been showing a difference in motherboards rather than processors on some of those tests. That does make it an interesting result in other ways though. It looks like the i7 boards have room to mature a little bit more relative to the older tech.
Who said that AMD holds the crown in performance? I think any half witted enthusiast who hasn't been hiding underneath a rock for the past year knows that the i7 (and even the core 2 duo in some test) is king. I would hope that people who visit tomshardware or rather any tech website knows that in terms of highend power, AMD doesn't come close to Intel at all.
Those game results look like you ran into serious GPU limits. As a result I think you may have been showing a difference in motherboards rather than processors on some of those tests. That does make it an interesting result in other ways though. It looks like the i7 boards have room to mature a little bit more relative to the older tech.
Likely, yes. If you look back to this doozy of a benchmark-fest, you'll see it isn't under you add a second or third GTX 280 that i7 starts putting on some distance. Up until then, though, it's worth noting that the other two platforms (Core 2 and Phenom) are actually faster!
Really, any of the i7 processors besides the 920 seems like a waste because of the marginal performance increases for exponential price hikes. I was especially alarmed by the DDR3 memory results. There is the synthetic benchmark advantage of higher bandwidth at higher speeds but absolutely no difference across the board ranging from 1066 to 2133 in real world encoding or what not.
Pretty absurd, I think I'd just stick with the 920 @ 3.8GHz and some affordable DDR3 1600MHz memory.
Do these higher end chips have higher overclock ability than the 920?
Who said that AMD holds the crown in performance? I think any half witted enthusiast who hasn't been hiding underneath a rock for the past year knows that the i7 (and even the core 2 duo in some test) is king. I would hope that people who visit tomshardware or rather any tech website knows that in terms of highend power, AMD doesn't come close to Intel at all.
king to what ? a few nutcases that for 1 more fps will go and pay 700+ more $ ? even in the Video editing business let`s say .. nobody will go and buy those CPUs they don`t add to the $ and given the current crysis situation there won`t bee to many studios willing to throw out the window the price of a fully working station just to get a new CPU. For me now the Kings still are Intel`s i7 920 and AMD`s PII 955.
WTF?
I have yet to see anyone make such a claim and definitely not in mass.
I have seen AMD Phenom II x3 720 dubbed the price to performance champion.
Do these higher end chips have higher overclock ability than the 920?
The 965 and 975 have an unlocked multiplier, so yes. By how much? I'm not sure.
Is it going to be worth the $1000 price tag.
Lol, this 975 only clocks 120mhz fast than my 920 D0 with no volts and it is much cooler at 60degrees at load
The 965 and 975 have an unlocked multiplier, so yes. By how much? I'm not sure.Is it going to be worth the $1000 price tag.
that`s what i was trying to point out in my previous comment but somebody out there instead of getting 3 x i7 920 they rather spend it all on only 1 cpu
WTF?I have yet to see anyone make such a claim and definitely not in mass.I have seen AMD Phenom II x3 720 dubbed the price to performance champion.
I'm being facetious about the performance. But look at the comments in the most recent SBM. Three separate authors independently pick Intel platforms and suddenly there's a conspiracy going on ;-)
its stupid comparing this to a Phenom II when the Phenom II isnt priced anywhere near the same as the Intel part - the Core i5's will address this whole area and "compete" with with the Phenom II's etc as a mainstream part and as the Core 2 replacement.
It would be nice to know what Toms can crank the i7 875 up to with a decent water cooling setup. I just read an article on another site were a guy reached 2200+ ddr3 successfully and 4.6GHZ on a D0 i7 920.
Some of us like to see what the limits are.
If the possible overclock gains are ignorable, if at all existent, I think the 920 will hopefully be my next baby if not a i5. The money saved on getting a 920 D0 over a 975 would pay for a sweet liquid cooling setup. Or maybe I should get a job again...
I'm being facetious about the performance. But look at the comments in the most recent SBM. Three separate authors independently pick Intel platforms and suddenly there's a conspiracy going on ;-)
I know that by now I sound like a broken record but u guys make the conspiracy possible. I mean look at the gaming benchmarks between Phenom 2 and i7 and Core... at first glance one would think "damn didn't know AMD was that fast" but that is a false impression. You guys made an article a couple of weeks ago stating that the i7+X58 doesn't play nice with Nvidia graphics, and you proved it. But despite that you keep on using a geforce 260 knowing it will perform lower when pair with the i7 (that is why on the LGA quad and Phenom 2 things look much better)
And so you fuel the AMD vs Intel flame war that's going on. Please, make it clear once and for all, do a special article or something, write it with BIG LETTERS: 2 systems, i7 + nvidia and then a ati offering and a phenom system + nvidia and a ati offering.