Intel's Core i7 870 & i5 750, Lynnfield: Harder, Better, Faster Stronger
by Anand Lal Shimpi on September 8, 2009 12:00 AM EST- Posted in
- CPUs
PAR2 Multithreaded Archive Recovery Performance
Par2 is an application used for reconstructing downloaded archives. It can generate parity data from a given archive and later use it to recover the archive
Chuchusoft took the source code of par2cmdline 0.4 and parallelized it using Intel’s Threading Building Blocks 2.1. The result is a version of par2cmdline that can spawn multiple threads to repair par2 archives. For this test we took a 708MB archive, corrupted nearly 60MB of it, and used the multithreaded par2cmdline to recover it. The scores reported are the repair and recover time in seconds.
Faster than AMD? Check. Slower than the Core i7 920? Check. Costs under $200? Check. It's a shame that Intel didn't enable Hyper Threading on the Core i5 750, otherwise it would've really ruined most of the LGA-1366 lineup. The Core i7 860 is probably the best of both worlds unfortunately they are very hard to come by at this point.
The Core i7 870 is actually faster than the i7 975 here. I'll chalk that up to DDR3-1333 with some aggressive turboing.
WinRAR - Archive Creation
Our WinRAR test simply takes 300MB of files and compresses them into a single RAR archive using the application's default settings. We're not doing anything exotic here, just looking at the impact of CPU performance on creating an archive:
Large file compression is very well threaded and thus we see a real difference in performance between the HT enabled i7 920 and the i5 750 without Hyper Threading. The i7 870 however is within 5% of the i7 975, at 56% of the cost.
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Jeremiahx99 - Tuesday, February 16, 2010 - link
biased? they where comparing stock vs stock how can u call that biased, and people is not stupid lol whats that mean?BlueBlazer - Sunday, September 13, 2009 - link
Clock to clock comparison with turbo off..http://www.pcper.com/article.php?aid=776&type=...">http://www.pcper.com/article.php?aid=776&type=...
Phenom II 965 comes in last place, due to IPC differences which is why AMD had to release higher clocked (should I say "overclocked") Phenom II to compete against Core 2 and Core i5/i7 series.
MamiyaOtaru - Thursday, September 10, 2009 - link
Why compare to a Phenom OCd by 600mhz? The Phenom doesn't do it automatically like the i7ssj4Gogeta - Thursday, September 10, 2009 - link
It's biased because Intel is giving you more features?? The whole point of comparison is to determine which is better. Next you'll say it's biased because it's comparing a Nehalem to a Phenom II.ClownPuncher - Wednesday, September 9, 2009 - link
"people is not stupid. "Nice
goinginstyle - Wednesday, September 9, 2009 - link
Somebody ban this SnakeOil idiot.Etern205 - Tuesday, September 8, 2009 - link
NDA is lifted! Huzzah!!!philosofool - Tuesday, September 8, 2009 - link
Now all I need is for Newegg to get in on the act!Casper42 - Wednesday, September 9, 2009 - link
http://www.newegg.com/Product/Product.aspx?Item=N8...">http://www.newegg.com/Product/Product.aspx?Item=N8...tcool93 - Tuesday, May 11, 2010 - link
I'm posting this to an older review, but just wanted to make a comment. I noticed all the reviews that have the Q9650 included, compare it to the Phenom 965... which isn't a fair comparison at all, because the Phenom 965 is running at a considerably faster mhz than the Q9650 is. Plus the Q9650 can overclock much faster with no voltage increase. I would bet the Q9650 is faster than the Phenom 965 at the same clock speeds.