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now I spent a fair amount of time with the latest version of afterburner and I

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just want to oh okay that won't work well with the GTX 590 the uh the latest

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beta version of afterburner I was able to get my hands on does support

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overvolting and I wanted to test my hypothesis that the underclocked gf11 on

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here uh the underclocked under voltage

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gf11 um would be able to clock up nearer

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to their single card brethren like the GTX 580 if they were overvolted or or

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even volted or even set to the same voltage as the GTX 580 so while I was

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not able to get to the same performance

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level um at the same voltage with More Voltage so I actually maxed out the

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slider in afterburn I'll show you guys the settings afterwards I was able to

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achieve better than stock clocks of a GTX 580 on the GTX 590 when you consider

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how much lower clocked it comes by default I was able to get over 800 MHz

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on the core which is about a 30% overclock which is outstanding and then

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on the memory I was able to get up over 2.1 GHz so that

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is about 22% on the memory so that's

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going to turn into some serious performance Improvement so what I'm

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going to do is or what I'm doing here is I'm going to be running a 3D Mark 11 uh

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before and after to give you guys a rough ballpark of how much extra

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performance we're able to get out of the GTX 590 by overclocking it as such now I

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won't make any claims about how long your card is going to last and do bear

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in mind guys that yeah sorry my light hasn't been pointed in the right

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direction here do bear in mind guys that depending on the manufacturer of your

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GTX 590 you may not necessarily have any

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warranty left as soon as you start overvolting and overclocking and stuff

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like that so be very careful um I mean

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this card has no warranty anyway so I'm not that worried about it um so anyway

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yeah I'll be back when I have the results all right so here's my final 3D

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Mark 11 score I'm using the extreme

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preset on the overclocked GTX 590 now

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bear in mind guys okay check this out temperatures even in a benchmark so

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we're not even talking when I'm intentionally stressing the temps are up

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to 86° so max temps and max power

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consumption I'll show you guys the power consumption numbers in a bit here are

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significantly up versus the stock card

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so here are the clocks that I finalized on hold on just got to get it to focus

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okay there we go nope okay let's try

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this yeah yeah there we go all right so cor voltage I have maxed out the slider

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that is as much as afterburners going to allow us to give it core clock we're up

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at 809 MHz so that's well over a stock

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GTX 580 and the Shader is correspondingly high memory clock we're

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up over 2.1 GHz on the memory and the

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fan speed I have left at Auto so I'm going to run the stock Benchmark now cuz

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I didn't actually do any 3D Mark testing for my reviews and then I will be able

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to give you guys even more details so with our stock clocks we get just over

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3,000 3D marks so that gives us

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a I guess it's not that much of an

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improvement so I guess NVIDIA knew what they were doing when they clocked this

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card at what they did because I'm about to show you guys well first of all here

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you can see that the temperatures are much lower so in this Benchmark we peek

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at about 75° so I'll show you guys what I run into in terms of power consumption

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and Acoustics so there you have it guys we

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can can easily pull over 500 watts from

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the wall um I've seen it Peak higher than that in games like Metro 2033 up as

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high as around 550 to 570 Watts from the

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wall with the GTX 590 overclocked the

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way it is um one thing to note actually

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is that in Metro 2033 I saw a bigger performance Improvement than I did in 3D

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Mark uh in 3D Mark 11 um

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I went from what was it hold on I got my

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numbers here beside me

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um yeah in 3D Mark 11 I saw like less

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than 10% performance Improvement but in Metro 2033 it was closer to 15% so I'm

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not really sure what's up with that but those were sort of informal testing

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numbers so I don't put too too much stock in them as far as Max temps go it

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looks like this is pretty similar to what we saw before so about 88 degre is

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as high as it goes and since it can't focus worth anything there we go 88° is

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about as high as we see it go but it is significantly louder so I'll throw a

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couple audio clips onto the end of this one where I'll show the non- overclocked

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versus the overclocked GTX 590 thank you for checking out my little video here on

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the limits of the GTX 590 in terms of overclocking don't forget to subscribe

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