Will i be bottlenecking

devilofdeaths

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Jul 17, 2012
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ok i was wondering if i get a amd phenom II 965 black http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID= and overclock it to 4.4 Ghz will i bottleneck an ASUS 7950 directCU2 http://www.newegg.com/Product/Product.aspx?Item=N82E16814121489&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID=
 

jtenorj

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You should get 4ghz pretty easy with a decent air cooler like a hyper 212. That won't create a significant bottleneck
in any current game. Here's how processors from current to a few years old rate on an xfx 7950(whole article good) :

http://techreport.com/review/23246/inside-the-second-gaming-performance-with-today-cpus/8

The x4 980 is a 965BE with a few extra bins on the stock cooler, and is close to i5 760 and i7 875 which are not
significant bottlenecks(a few more bins on a decent cooler and a voltage bump make them roughly equal). It's far
superior to i5 655k(representing LGA1155 i3s in this test). You also have an upgrade path to FX8350 with new bios:

http://www.extremetech.com/computing/135388-amd-cpu-bonanza-trinity-desktop-prices-intels-counter-and-the-piledriver-fx-8350s-performance

These charts show x4 980 trading blows with i5 2300( between i5 760 and i7 875) and fx8350 trading blows with i7
quads in multi threaded apps. More games are coming out that make use of quad core processors(BF3 multi player,
Skyrim, various RTSs, etc) and while i5 2300 is locked down, all the other amd and intel processors are not and
will overclock even higher. Besides a few more speed bumps on ivy, LGA1155 is done(Haswell will be on LGA1150).
AM3/AM3+ will let you put in a piledriver FX cpu(like fx8350) and possibly a steamroller cpu as well. Hope this helps.
 

jtenorj

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I take issue with that benchmark page, and I'll explain why. First, a few things. devilofdeaths is wondering if a
4ghz+(4.4 actually) phenom II x4 with 6MB of L3 cache will bottleneck an asus dc2 7950(which I imagine should
easily oc past 7970 levels). The tom's benchmark linked uses an hd7970 for testing. Now to my beefs:

The first game listed, Star Craft 2, is tested with no aa(would switch the onus back to the gpu). That should lower
average framerate and may impact minimum frame rate, but it won't be due to the cpu. In an rts like sc2, 15fps
is pretty decent(like what the 955BE OCed to 4ghz got for a minimum, 45fps avg.).

Just Cause 2 has fairly high settings in place and runs at 38fps minimum(69.5fps avg.) on that OCed 955BE.
Unless you need more than 60fps at all times on a 60hz screen(which even a 4ghz 2500k can't provide), u r o k.

Finally there's Skyrim. 29fps minimum, 37fps avg(vs i5 2400 with 36 and 45). I wonder if the 955 is throttling.

4ghz didn't become easy til the new stepping on 965be dropped it from 140w tdp to 125w(like the one linked by
devilofdeaths on newegg). I believe 955(BE) is 140w. Since x6s are also 45nm, are larger(more cores), and also
hit 4ghz easy, a 956be should go a bit past 4ghz w/o trouble. Also, in a value sense, this inexpensive, unlocked
quad core(combined with an inexpensive but feature rich, performance mobo) is a bettter bang for your buck than
a more expensive combo of i5/i7 and supporting mobo or a cheap i3(or lower) and similarly feature rich mobo.

If you factor in the extra cost of cooling(decent air cooler vs stock cooler for both amd cpu and intel k series) and
maybe a better psu for an x4, it's still a better proposition when on a tight budget. If you go online against other
players in the likes of sc2, you will want the extra cores in an x4 over an i3 or pentium(sc2 tested in SP mode).

Oh yeah, fraps doesn't tell the whole story. If you read gpu reviews for the last 12 months or so at techreport,
you will see how a gpu with a higher fps in fraps may actually give you an inferior gaming experience compared to
one that has a lower fraps score. Hardocp has been on this track for years, but can't yet fund the kind of equip-
ment techreport has to scientifically show what they've been "feeling" for years in their gpu reviews.

And that tom's article compares bulldozer fx(crap), amd APUs(best overclocked with a decent cooler on a decent
mobo like every other cpu, possibly turning down the gpu part to give more headroom to the cpu part) and
pentium(not worth it over an x4 or A8k when they are similarly priced). A8 has no upgrade path(piledriver based
APUs will be on fm2), but on am3 you can upgrade to piledriver fx soon and maybe steamroller too. Besides the
chance of intel releasing a few slightly faster ivy procs, LGA1155 is dead(Haswell will be on the new LGA1150).

Edit: phenom II x4 965BE for 85.99 with free shipping, without question. Find it here:

http://us.ncix.com/products/?sku=46281&vpn=HDZ965FBGMBOX&manufacture=AMD&promoid=1375
 

devilofdeaths

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Jul 17, 2012
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yes i know im using PCPartPicker to pick the parts so i already know and you're right the cheapest i5 is $175 so if i do decide to get a i5 should i just save up for the 2500k because i will be overclocking
 

jtenorj

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@devilofdeaths: I noticed you posted a post like 6 seconds after I posted that long one(which I edited a bit later).
Did you read the whole thing? An i5 k cpu and a mobo that will OC it will cost a lot more than 965BE and a quality
am3+ OCing mobo. If you really crank up the details on your gpu, any real bottleneck will switch to that.
 

devilofdeaths

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Jul 17, 2012
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yes i did read it the thing was is that i didnt refresh the page before you posted so i didnt see it before i posted the bias thing but right after i posted it i read the whole thing