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I5-2500 or i7-950?

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January 13, 2011 1:52:43 PM

Hey, i recently asked a question regarding picking a mobo for my cpu and i was recommended the following.


Chipset: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Ram: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

My friend is telling me i should invest 75 $ more and get i7-950 Chipset, and also he found some ram with identical specs for less $

Ram : http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Chipset: http://www.newegg.com/Product/Product.aspx?Item=N82E168...


What's the difference between the first recommended ram, and the ram my friend found, why am i paying more $$ :) ?

And for chipsets, maybe the i7-950 wasn't recommended because i said i wanted a budget and he found something very close to my minimum budget

is the i7-950 worth the 75$ more?

More about : 2500 950

a b V Motherboard
January 13, 2011 2:30:54 PM

No. IMHO the i7-950 is not worth the $75 more. Stick with Sandy Bridge (LGA1155) as it is new and will offer a CPU upgrade down the road (more future proof than LGA1366).

G.SKILL Ripjaws memory is CL9 memory (9-9-9-24) while the G.SKILL PI is CL6 (6-8-6-24). The lower the Cas Latency the better...
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a c 234 V Motherboard
January 13, 2011 3:40:54 PM

Here is a little more detailed comparison... http://www.anandtech.com/bench/Product/288?vs=100

I would stick with the i5 2500k!! Also if you go with the i7 950, you'll need a different motherboard (X58 - LGA 1366) and Triple-Channel RAM (Sets of 3), so your overall cost will increase more than just the cost of the CPU difference.
a b V Motherboard
January 13, 2011 4:50:34 PM

With the i7-950, the performance is less in most cases than the i7-2600X (see reviews where they use this chip to compare to Sandy Bridge.) In fact, the 2500x smokes it most of the time. As I recall there was just 2 tests where the 950 was a bit better. I'd go with the new stuff. I also considered going with the 1366 socket but am glad I went to a 1055 socket. SO far, I really like the performance and have not had issues.

Also regarding the RAM, for the difference is performance and cost, I'd go with the 9-9-9-24 stuff any day. I'd bet most could not see the diff in real use. Be advised that I have heard from my dealer that 1600Mhz RAM is causing some headaches for some Sandy Bridge mobo buyers. I am so glad I went with 1333Mhz!!!
January 13, 2011 5:03:55 PM

Thanks guys, looks like im going with the set up i was recommended for sure.
January 13, 2011 5:05:45 PM

Ohh whats this about 1600 mhz ram having problems...

is this a common thing, or you just heard of it... because maybe someone just got faulty ram.
January 13, 2011 5:22:02 PM

Okay, well i think i have 2 wait roughly 3 weeks before i can order this stuff.

Are there likely to be big changes before i order and i should reconsult?

Is there any near by time frame where a lot of new stuff is going to come out and this stuff is going to drop in price considerably? like 20% drop for a 2 month wait type deal.
a b V Motherboard
January 13, 2011 5:41:21 PM

Things won't change much in three weeks....
a b V Motherboard
January 13, 2011 6:31:58 PM

kudohlol said:
Ohh whats this about 1600 mhz ram having problems...

is this a common thing, or you just heard of it... because maybe someone just got faulty ram.



I got an email from my salesman last night to ask how my build went. In his message he stated that some purchasers have been having problems with 1600 Mhz RAM on some Sandy Bridge Mobos. I don't know anything more about it than that. It could be a bad batch of RAM (it happens) or it could be something in the BIOS. We'll see.
a c 715 V Motherboard
January 14, 2011 1:41:11 AM

^The only SB that won't do >1600 1333 MHz is the H67 - they're stuck at 1333 MHz. The H67 are fine for 'Office' Apps & vanilla HTPC's and that's about it.

950 vs i5-2500K...ANSWER YES/NO. YES - If you are going to be running multiple or large single monitor configuration then go X58; otherwise NO, for this sliver of a moment in time, go the P67 SB route. Since there's a budget then go the SB.

The CPU is not the bottleneck in that case, it will the the saturation of x8/x8 in the P67.
a b V Motherboard
January 14, 2011 2:31:34 AM

jaquith said:
^

The CPU is not the bottleneck in that case, it will the the saturation of x8/x8 in the P67.


Agreed about the CPU. So what is your comment about the doubling of the bandwidth from 2.5 to 5 with the new SB ASUS? I have read that this effectively cancels out the x8/x8 bottleneck.
a c 715 V Motherboard
January 14, 2011 3:02:46 AM

Worst even in Tom's P67 Benchmarks results the the resolution was limited to a single GPU and single monitor 2560 x 1600 {4.1MP} and the i7 950 was top of the pack, now imagine 5760 x 1080 {6.2MP}. A typical 1920 x 1080 is ONLY {2.1MP} so you're trying to push 200%~300% more data + calculations per frame.

Next, the friggin PCIe bandwidth problem. Since in many of the tests those result were under x16 single GPU on both the P67 & X58, so imagine the results in SLI/CF where the X58 isn't even phased with the x16/x16 vs the P67 x8/x8...???!!!
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