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Clock Speed vs. Core Count

Last response: in CPUs
a b à CPUs
October 30, 2010 6:39:46 PM

A friend of mine is upgrading her CPU, and would like some input on what processor she should choose. She has an AM2+ motherboard, and would like to have the option of doing some light overclocking, and would therefore would like a Black Edition Processor from AMD.

She uses Photoshop CS3 and Sony Vegas 9, often running them simultaneously. Would an overclocked 6 core Thuban give a substantial performance increase over the 4-core Deneb, or is the increase not worth the extra ~$100?

Thanks for any help.

More about : clock speed core count

a b à CPUs
October 30, 2010 7:30:38 PM

" The Sony Vegas 9.0d workload that we are using takes an input file that is a ~1min59sec, ~370MB 1440x1080 HD video imported from an HD camcorder using Sony Vegas. We then take that file and output it as a Blu-ray disc using Sony Vegas 9.0d. The output is a 1920x1080 60i Blu-ray Disc ISO image. "

Up to you!

The Thubans are very efficient and OC like champs. I'll mention that the 1055T also overclocks very well from what I've seen, so even a minor overclock can give you 1090T stock performance or better.
a b à CPUs
October 30, 2010 8:51:16 PM

Looks great. Is that chart all at stock speeds?

Is there anything that shows similar tests on Photoshop?
Related resources
a c 78 à CPUs
October 30, 2010 9:59:18 PM

Please make sure to confirm the X6 is supported by your AM2+ board. Not all of them will support the newer chip, if you go that route. I would go with an X4 955 for the upgrade. I won't spend that money on an older AM2+ board.
a b à CPUs
October 30, 2010 11:35:44 PM

+1 to Raidur and techmo. Make sure X6 will work with the board. As a Sony Vagas user, I can tell you core count matters.
October 30, 2010 11:54:35 PM

Also, make sure that her case has good airflow. I don't know what kind of wattage she is running now, but I have a friend who upgraded from a celeron to a 1055t for blender, and then noticed that his temps were kinda high - needless to say, he didn't have many fans in his case, and they weren't large ones. 125 watts is allot of heat.
a b à CPUs
October 31, 2010 12:20:02 AM

^ Good point.

@OP: List full specs, esp. the PSU.
a b à CPUs
October 31, 2010 1:36:52 AM

750 watt Antec PSU - don't know the exact model number, is Crossfire ready.
Athlon II 620 (95w) Stock Speeds - as far as I know
6 GB DDR2 800 (2x1 + 2x2) in Dual Channel Mode
Win 7 Home Premium x64
Asus Radeon 5770

7 HDDs
2 ODDs

If anything, I always thought her PSU was a little too much for what she needed, I doubt there'll be a problem there.

She's not really concerned about spending money on an older system - once she gets a good software and hardware combination, she'll use it far into obsolescence. She just wants to get the best power she can to run what she needs to, without investing in a whole new system.
a b à CPUs
October 31, 2010 2:28:42 AM

^ Well, if that is the case, go with the X6. But DO update the BIOS before installing the X6.
a b à CPUs
October 31, 2010 11:20:52 AM

so update the BIOS with the Athlon II inserted, then swap out the CPUs. Thanks.
a c 78 à CPUs
October 31, 2010 11:43:47 AM

I would upgrade the BIOS with your current CPU installed prior to going to the Athlon II or X6. This way you know you have a supported CPU installed for the update.
a b à CPUs
October 31, 2010 12:25:18 PM

The Athlon II is the current CPU - I was wondering if I should upgrade her to a Phenom II x4 BE or x6 BE.
a c 78 à CPUs
October 31, 2010 12:50:03 PM

Sorry... skipped over the Athlon II X4 620 as current setup. Here are a few comparisons of what you plan to upgrade..
  • X4 620 vs X4 965 BE
  • X4 620 vs X6 1090T

    They are both nice improvements over the Athlon II X4 620.
    a b à CPUs
    October 31, 2010 11:39:50 PM

    I think I'll go with the 1090T - The programs she uses will benefit from having more threads available, and both could reach 4 GHz without much trouble. I think I'll also get her the Cooler Master Hyper 212+ - It seems to be one of the best bang for your buck air coolers around. Thanks everyone for all your help.

    Best solution

    a b à CPUs
    November 1, 2010 12:57:52 AM

    user 18 said:
    Looks great. Is that chart all at stock speeds?

    Is there anything that shows similar tests on Photoshop?

    Yes they were at stock speeds.

    " To measure performance in Photoshop, we uses Retouch Artists Speed Test. Photoshop was configured as per the included documentation, and we used a SSD for the scratch drive to ensure consistent numbers. "

    And here is an include from benchmark app's website (not the review's) about the benchmark itself.

    " take over hosting of the Adobe Photoshop Speed Test. This Photoshop Speed Test has been become the benchmark for gauging your machine's Photoshop performance "
    a b à CPUs
    November 13, 2010 3:28:02 PM

    Best answer selected by user 18.