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Upgrade from e8400 to pII x4 965

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July 1, 2012 7:51:56 PM

Hi,

I currently have two computers: intel core 2 dou e8400 on p35 mobo and a amd athlon ii x2 250 on 785g mobo.

The e8400 @3.6ghz paired with an amd hd 5870 is my main computer that I use for gaming. However, the framerates in during general gaming are lower than what would be expected from a hd 5870, especially in Witcher 2 where I use medium setting and still experience lots of framerate fluctuation and avg 35fps. In general games that can utilize more than 2 cores like Witcher 2 have lower fps than what would be expected of a hd 5870.

Thus, I am considering replacing the athlon ii x2 250 with a amd phenom II x4 955 or 965 to pair with the hd 5870. On newegg prices are around $105, and I would not have to get a new mobo or ram.

AMD Phenom II X4 955 Deneb 3.2GHz Socket AM3 95W Quad-Core Desktop Processor
and
XIGMATEK Gaia SD1283
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...
115-10 code= $105

or
AMD Phenom II X4 965 Black Edition Deneb 3.4GHz Socket AM3 125W
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
120-15=$105

The 955 is .2Ghz slower but has a better cooler and lower power consumption.

I have two concerns.
1) Will the phenom II x4 955/965 be a significant enough upgrade over the e8400 @3.6ghz for $105?

2) I have a Antec ea500w that I have been using since 2008 with the e8400. It has been working well with the hd 5870. But phenom II x4 has higher power consumption than the e8400. Is the 3 or 4 year old antec ea500w going to be enough to power the phenom II x4 with a hd 5870? This concern is also going to stop me from overclocking the phenom II x4.


I do not want to invest significant amounts of money on an upgrade like $300-350 for an i5+mobo+ddr3. So my options are keep e8400 or upgrade to phenom ii X4.


current amd mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

More about : upgrade e8400 pii 965

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July 1, 2012 8:15:22 PM

Yes, the X4 will be a nice little performance boost for you especially if you overclock it. Id go with a 965 personally just because itll be a little higher binning which might mean a little more stable chip if youre planning on overclocking. So yeah, itll definitely be a bump worth $105. I too have a 5870 and my old X2 555 was unlocked to a X4 and it ran everything at max settings. Havent played the Witcher though so I cant attest to that.
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July 2, 2012 2:13:34 AM

Sure you can't find a Q9550 used near you? That'd be the best upgrade IMO. Higher IPC and faster if you're overclocking.

Not worth buying new however... but if you can find a decently priced used one I'd say go for it. Save ya lots of money.
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July 2, 2012 2:17:38 AM

Raidur said:
Sure you can't find a Q9550 used near you? That'd be the best upgrade IMO. Higher IPC and faster if you're overclocking.

Not worth buying new however... but if you can find a decently priced used one I'd say go for it. Save ya lots of money.


That would be a good upgrade, but since 965's are going for just over $100 right now and Core 2 Quads are hard to come by and seem to still be very expensive ($250+) I dont think it would be worth it. A 965 is a little better than a Core 2 Quad and will overclock just as well too.
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July 2, 2012 2:23:28 AM

axe1592 said:
That would be a good upgrade, but since 965's are going for just over $100 right now and Core 2 Quads are hard to come by and seem to still be very expensive ($250+) I dont think it would be worth it. A 965 is a little better than a Core 2 Quad and will overclock just as well too.


I do agree it's hard to find (and not worth buying new or over $200), but it's worth a quick look on craigslist. Some people sell it for what it's worth per performance.

Also, give this a gander. (clock for clock comparison)

http://www.anandtech.com/bench/Product/88?vs=48

Deneb - 5 Yorksfield - 26
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July 2, 2012 2:32:05 AM

I will add, I think I missed that he had a second AMD setup that he was going to simply replace the CPU and not the motherboard.

Probably worth just using that for your setup.
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July 2, 2012 2:34:11 AM

LOL! Thats a $1000 processor with twice the cache. Not really a fair comparison.

Still, Ill agree that Intel wins the IPC battle but that 965 will overclock further than a C2Q more than likely and youll have the better proc. Even if it doesnt, its still $105 for a brand spankin' new one compared to $200+ for a used C2Q. ;) 
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July 2, 2012 3:04:46 AM

I agree that the 965 is a killer CPU at it's price.

The QX9770 has 12MB L2, the same as the Q9550 (which is the CPU I was recommending) and it's speed is the same clock for clock.

The only reason I choose it is for the clock for clock comparison.

The 965 may get 100-200mhz on the Q9550 but that still barely levels things out. My Q9550 gets to 4ghz quite easily. 3.6ghz on stock voltage.

http://www.anandtech.com/bench/Product/48?vs=102

I would prefer a used $100 C2Q with 2-3 years left on warranty over a Phenom II. However like I mentioned, the 965 on his current AMD setup is likely the good choice here. Not often do you see the C2Qs at $100 (where they should be priced).
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July 2, 2012 3:35:35 AM

Thank you for your help. Like you guys figured out I have two builds: E8400 and a Athlon II X2. I use the e8400 for gaming and the Athlon II X2 is an htpc. If the amd phenom ii x4 965 is significantly better than the e8400 then I will turn the e8400 into the htpc and stick a new 965 into the mobo of the Athlon II X2 computer.

Thank you for suggesting a Intel Core 2 quad, but it is hard to find an affordable one in my state.
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July 3, 2012 12:16:08 AM

I decided to stick with my current e8400 build without upgrading because I think my 4 year old antec ea500w will not be enough for either the 95w 955 or 125w 965
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