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SB 2500k vs PhII x6

post #1 of 14
Thread Starter 
Just curious. What everyone in the AMD section has to say about these.

Had a long winded debate with a friend, in which I more or less stated that clock per clock, Intel wins. That the 2500k is, more or less, a better cpu than the 1090T/1100T. They can both overclock like champs so thats no longer a segment that AMD has on lockdown.

He argued, said that AMD wins simply. Though he didnt link to any benchmarks that attested to this or anything, and all the benchies I can find say otherwise.

Comparing the two is fair IMO because factoring MicroCenter in, they are both roughly the same price.
post #2 of 14
For a new build either go SB or wait for BD. That being said I'm very happy with my X6 at the moment.
post #3 of 14
The 2500k will win hands down, it will win clock for clock and will hit 4.5GHz+ on air cooling, not really much debate on the subject around here.
post #4 of 14
2500k wins. There, I said it. Happy now?
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Oxygène
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post #5 of 14
Thread Starter 
Kinda suspected as much more or less. Jus wanted to make sure I was headed in the right direction with my build.

Bulldozer, sure to be a game changer for highly threaded apps and such, but Im guessing will do little for gaming? Course, all just speculation atm.

Anyone think bulldozer will bring 2500k prices down? Even if so, would that likely reach MicroCenter which already has rock bottom prices for SB?
post #6 of 14
Quote:
Originally Posted by Cloud007 View Post
Kinda suspected as much more or less. Jus wanted to make sure I was headed in the right direction with my build.

Bulldozer, sure to be a game changer for highly threaded apps and such, but Im guessing will do little for gaming? Course, all just speculation atm.

Anyone think bulldozer will bring 2500k prices down? Even if so, would that likely reach MicroCenter which already has rock bottom prices for SB?
Yeah the Thubans (PHII x6) has nothing on the SBs in terms of performance, even with highly-threaded apps. No one really knows much about BD and it looks like it's going to be delayed another month (no confirmation yet though).
    
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post #7 of 14
Depends what your doing with them, some things the x6 will do better at but for gaming and lots of benchmarks it will be faster. Both are great for folding, x6 does better at video rendering/encoding, encrypting/unpacking, SB wins in gaming and many other situation's. Basicly they trade blows and they're both great CPU's.
post #8 of 14
Thread Starter 
Restarted the debate with my friend a bit.

He pointed me to a community of overclockers and what they were getting. 4.2ghz was the highest air overclock for thuban. I pointed him to our communities SB overclocks. 5ghz SB.

He said it doesnt matter.

4.2ghz * 6 = 25.2Ghz
5ghz * 4 = 20 ghz

I know it doesnt work like that, I remember reading a pretty detailed article about it. =/
post #9 of 14
Quote:
Originally Posted by Cloud007 View Post
Restarted the debate with my friend a bit.

He pointed me to a community of overclockers and what they were getting. 4.2ghz was the highest air overclock for thuban. I pointed him to our communities SB overclocks. 5ghz SB.

He said it doesnt matter.

4.2ghz * 6 = 25.2Ghz
5ghz * 4 = 20 ghz

I know it doesnt work like that, I remember reading a pretty detailed article about it. =/
A few reasons it doesn't work like that:

The largest is the architecture difference as the SB chip has superior single threaded performance. This means that if you ran the same single threaded process with both chips at 4GHz, the 2500K will complete this process quicker than the X6. The actual differences change on a program to program basis, but generally the 2500K will perform from 10-30% better at the same clock speed for a single threaded process.

Second, his equation also requires that every core is fully loaded and perfectly optimized and honestly, we're just now seeing quad cores enter the mainstream market. While they've been around on the enthusiast side of things, many programs are not coded to take advantage of more than one or two cores. In fact, some never will as they just cannot be run with parallel processes.

If you want to show him some proof, direct him to Anandtech's Bench database.

Here is a comparison between the two: http://www.anandtech.com/bench/Product/288?vs=203
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post #10 of 14
Edit: Hah! xxbassplayerxx gave a very good explanation.

There's still the architecture that needs to be taken into consideration.
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