Pentium 4 3.46 Extreme Edition and 925XE: 1066MHz FSB Support is Here
by Anand Lal Shimpi on October 31, 2004 3:00 PM EST- Posted in
- CPUs
The Test
Given that there's pretty much no performance benefit to the 1066MHz FSB as we've illustrated in the previous pages, we will offer the next several pages of benchmarks only as a reference point to show how the 3.46EE stacks up to the CPUs we compared in our most recent CPU review, but without our usual commentary. Based on what you've already seen, it should be no surprise that the 3.46EE is really no faster than the 3.4EE, but if you would like to see all of the individual benchmarks feel free to flip through the coming pages. Those who aren't interested should feel free to skip directly to the conclusion.
In addition to our usual tests we've included PC World's WorldBench 5, an application based test suite much like Winstone and SYSMark that incorporates many popular applications. Unlike the aforementioned benchmarks, WorldBench does not test multitasking power, rather focusing on single application performance, making it very complementary to our existing benchmarks. The one thing to keep in mind about the WorldBench results is that the variation between test runs can be pretty significant; we do everything to make sure that the results are as consistent as possible (multiple runs, throwing out outliers, etc...) but the variation between runs in these tests can be as high as 6% - thus we would suggest looking at performance differences only greater than 10% in these tests for any sort of significance. The rest of the tests have variations between runs of 1 - 3%.
Our hardware configurations are similar what we've used in previous comparisons, with one addition - our Athlon 64 testbed now uses the recently released nForce4 chipset. For a review of that chipset read our own Wesley Fink's review of NVIDIA's latest chipset with SLI support.
AMD Athlon 64 Configuration
Socket-939 Athlon 64 CPUs
2 x 512MB OCZ PC3200 EL Dual Channel DIMMs 2-2-2-10
NVIDIA nForce4 Reference Motherboard
ATI Radeon X800 XT PCI Express
AMD Athlon XP Configuration
Athlon XP 3200+
2 x 512MB OCZ PC3200 EL Dual Channel DIMMs 2-2-2-10
ASUS A7N8X Deluxe nForce2 400 Motherboard
ATI Radeon X800 XT AGP
Intel Pentium 4 Configuration
LGA-775 Intel Pentium 4 and Extreme Edition CPUs
2 x 512MB Crucial DDR-II 533 Dual Channel DIMMs 3-3-3-12
Intel D925XECV2 Motherboard (we used the same board for 1066MHz FSB and 800MHz FSB tests
ATI Radeon X800 XT PCI Express
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AlexWade - Sunday, October 31, 2004 - link
Now if only I can afford and find one ...MMORPGOD - Sunday, October 31, 2004 - link
IntelUser2000 - Sunday, October 31, 2004 - link
DDR2 is not a stupid move, its the speed they are at that's stupid. Remember DDR? They first ones ran at 200MHz, which were 50% faster than PC133 and still way faster than the enthusiast 166MHz SDRAMs. DDR's latency were higher, but since their clock is much higher, it wasn't a big problem as DDR2 vs DDR. However, PC1600 DDR still was not a big improvement over PC133, it was when PC2100 came that DDR started to shine.Another thing:
Quote:"With the original 925X chipset we were a bit unhappy to see that the Pentium 4's 800MHz FSB was paired with DDR2-533, creating one of those frustrating asynchronous situations."
I think 800MHz bus with DDR2-533 is actually VERY synchronous. First look it doesn't look like it. However since DDR2s latency is higher, it doesn't act like DDR533, it acts like DDR400. There was a Tomshardware review that was trying to predict the performance of 1066MHz bus.
First config was: 800MHz bus, DDR2-533
Second: 1066MHz bus, DDR2-533
Third: 1066MHz bus, DDR2-667
Guess which one had the biggest performance benefit? The third one, contrary to most people's belief. I think that tells that because of the DDR2's latency, you need DDR2-667 to perfectly match 1066MHz bus. Since Intel chose to stick with DDR2-533, they have created an asynchronous situation, making the performance not so much better. They should have went DDR2-667 with 1066MHz bus.
SLIM - Sunday, October 31, 2004 - link
One thing I didn't catch from anand's review is that the 3.46ee is rated at 110.7 watts according to [H]; just another reason to go AMD. Makes you wonder what the 3.73ee (which is supposed to launch this quarter) will have for a heatsink...Prometia for everyone:)
Tides - Sunday, October 31, 2004 - link
I remember reading a week or two ago about "AMD is going to have a tough time keeping up," from the lips of an Intel guy.Was this latest outing with the new P4EE's the proof? Perhaps I lack the foresight to understand what will happen in 6 months time, but in who's world is AMD going to have a hard time keeping up with? Cyrix's?
Tides - Sunday, October 31, 2004 - link
"ddr2 is a stupid move."Tides - Sunday, October 31, 2004 - link
not to mention, hi, ddr2 for is a stupid move. high latency, crap bandwidth, not just twice the price since you wouldn't have had to upgrade your ram otherwise if you already had solid ddr1.it reminds me of rambus. and beta max. and sony's discman. what else? ddr2 should have never come out imo. ddr3 is where it's at, hopefully amd will go straight to ddr3 and save it's customers and themselves the hastle of having to buy new ram, new mobos and so forth just to have to do it again with ddr3. i like faster everything as much as everyone else, but amd 64 proves ddr1 is alive and well, and ddr2 is what? exactly? perhaps in a year down the road, or two; it'll be worth something at the end of it's life cycle, just as ddr3 starts poking it's head about.
GhandiInstinct - Sunday, October 31, 2004 - link
Why don't they just screw any other core and focus on pumping out $1000 EEs? Everyones buying them, might as well. I really would like to know the stats for Intel's sales on their new cpus and chipsets, exact numbers.GhandiInstinct - Sunday, October 31, 2004 - link
#17 I was infering this world is off balance with that reality...Gnoad - Sunday, October 31, 2004 - link
wow. $1000 a pop for a CPU that gets destroyed by processors that cost a quarter as much. Totally asinine.