How much speed can you get from overclocking?

[miecz]

How much speed can you get from overclocking? I am not sure if this is relative to what is in your computer. So, let us assume you have a very good rig with water cooling and a 500W power supply or greater. A 20% gain in speed? 400Mhz?

 

[RichPLS]

It depends from chip to chip and which applications concerned with...
No overclocks give across the board same static perf increase...
Just look at benches from different lines to see that...
Generally, Intel CPU's have been overclocking significantly further than AMD CPU's... true for the last few years anyway and looks to be true in the coming year or so also...

 

[miecz]

It depends from chip to chip and which applications concerned with...
No overclocks give across the board same static perf increase...
Just look at benches from different lines to see that...
Generally, Intel CPU's have been overclocking significantly further than AMD CPU's... true for the last few years anyway and looks to be true in the coming year or so also...

Well, you really threw a monkey wrench into my CPU knowledge. I know that AMD would be better at anything. Well, let us say an AMD with 2.4Ghz Dual core. How much could you get out of it?

 

[RichPLS]

I have an Opteron 175 dual core stock at 2.2GHz, OC'd to 2.64GHz...
My PC performs on par with a stock FX-60...

 

[miecz]

I have an Opteron 175 dual core stock at 2.2GHz, OC'd to 2.64GHz...
My PC performs on par with a stock FX-60...

What kind of cooling, power supply, and other essentials do you have for it?

 

[RichPLS]

Lian Li PC-60plus Black Aluminum Case (w/TR-3B Black Thermometer/Fan Controller 3.5” bay and a L.I.S.2 (5.5” bay USB LCD Fan Controller))
Opteron 175 (OC’d 2x 2.64 GHz, 2MB cache, Socket 939, .09 micron, E6 stepping, OSA175DAA6CD)
ThermalTake BigWater 745 liquid cooling system complete kit
Asus A8R32-MVP Motherboard (ATI Radeon Xpress 3200 CrossFire, socket 939, SATA2)
HiS X1800XT Graphics Card (625 MHz/700 MHz OC core/1500 Mhz/1600 MHz OC mem, Dual DL-DVI VIVO 512 MB PCIe)
ATI TV Theater 550 PRO Tuner (PCI TV and FM Tuner)
4x 512MB Corsair Micro Xpert DDR RAM (2.5-3-3-8-2T (spd 2-2-2-5-1T) TwinXP 1024-3200XL)
2x 74gig Western Digital Raptor Hard Drives RAID-0 (WD740GD RAID0 150gig Boot Drive)
2x 250gig Western Digital Caviar SE16 Hard Drives (WD2500KS storage and data)
Plextor 716AL Black 16x DVD/CD Burner (IDE slot loading type)
Antec TP-II 550 Power Supply (550 Watt ATX12V v2.0 PSU)
Dell 2405FPW 24-inch LCD Monitor (UltraSharp Wide Aspect Flat Panel Display)
Logitech G-15 Gaming Keyboard
Logitech Cordless Optical TrackMan
Case Fans (PanaFlo 120mm intake, Adda 120mm exhaust blower, PanaFlo 120mm internal circulatory Fan, PanaFlo 92mm exhaust and PanaFlo 80mm Fan)

 

[miecz]

Are you super rich? I am guessing you are a computer programmer or game designer with a 100K salary. Am I right?

Some questions: Why did you get that ugly case? Why did you get that cooling system? If you spend that much, why did you not get this one? http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1643573&CatId=499

 

[nategarst]

Really depends on the chip, the hardware, the temps, some skill, and luck. There is not set standard for overclocking. Whatever you achieve and stable and you are happy with the results = good OC.

 

[weskurtz81]

My Opty 165 is Oc'ed to 2.9 on 1.392 volts, it performs pretty damn well..... 48hours prime stable and BF2 @ the same time as prime, no problems..... from what I have been reading, most of the newer 165's from this year all OC very well, all except the ccbwe stepping.

 

[RichPLS]

So far, the 745 seems excellent quality, and has no problems cooling...

 

[SidVicious]

A 20% OC is pitifully low for watercooling, I managed a 45% OC (2.9GHz) on a relatively poor CPU (43rd week of '05 E4 Manchester, some '06 ones can reach that on air with a much lower Vcore). 2.85GHz is insignificantly lower than 2.9 but gives me absolute stability under a 100% load on both cores 24/7 (F@H 4TW !).

BTW, that Tt Symphony thing is an even worst design than Rich's kit (even though I really don't like kits at all), any half decent 1/2" ID DIY system based on a car heatercore would outperform the Tt Symphony while costing a lot less and being compact enough to be mounted inside the case.

 

[weskurtz81]

The only reason I don't set mine above 3ghz is due to the fact that I can run it @ 2.9 @ stock voltage. The difference between 2.85/2.9 and 3/3.1 is not enough IMO to bump my voltage. 2.85 on a manchester is a pretty good OC. My average on my two prior X2 3800's was around 2.6/2.65.