now I spent a fair amount of time with the latest version of afterburner and I
just want to oh okay that won't work well with the GTX 590 the uh the latest
beta version of afterburner I was able to get my hands on does support
overvolting and I wanted to test my hypothesis that the underclocked gf11 on
here uh the underclocked under voltage
gf11 um would be able to clock up nearer
to their single card brethren like the GTX 580 if they were overvolted or or
even volted or even set to the same voltage as the GTX 580 so while I was
not able to get to the same performance
level um at the same voltage with More Voltage so I actually maxed out the
slider in afterburn I'll show you guys the settings afterwards I was able to
achieve better than stock clocks of a GTX 580 on the GTX 590 when you consider
how much lower clocked it comes by default I was able to get over 800 MHz
on the core which is about a 30% overclock which is outstanding and then
on the memory I was able to get up over 2.1 GHz so that
is about 22% on the memory so that's
going to turn into some serious performance Improvement so what I'm
going to do is or what I'm doing here is I'm going to be running a 3D Mark 11 uh
before and after to give you guys a rough ballpark of how much extra
performance we're able to get out of the GTX 590 by overclocking it as such now I
won't make any claims about how long your card is going to last and do bear
in mind guys that yeah sorry my light hasn't been pointed in the right
direction here do bear in mind guys that depending on the manufacturer of your
GTX 590 you may not necessarily have any
warranty left as soon as you start overvolting and overclocking and stuff
like that so be very careful um I mean
this card has no warranty anyway so I'm not that worried about it um so anyway
yeah I'll be back when I have the results all right so here's my final 3D
Mark 11 score I'm using the extreme
preset on the overclocked GTX 590 now
bear in mind guys okay check this out temperatures even in a benchmark so
we're not even talking when I'm intentionally stressing the temps are up
to 86° so max temps and max power
consumption I'll show you guys the power consumption numbers in a bit here are
significantly up versus the stock card
so here are the clocks that I finalized on hold on just got to get it to focus
okay there we go nope okay let's try
this yeah yeah there we go all right so cor voltage I have maxed out the slider
that is as much as afterburners going to allow us to give it core clock we're up
at 809 MHz so that's well over a stock
GTX 580 and the Shader is correspondingly high memory clock we're
up over 2.1 GHz on the memory and the
fan speed I have left at Auto so I'm going to run the stock Benchmark now cuz
I didn't actually do any 3D Mark testing for my reviews and then I will be able
to give you guys even more details so with our stock clocks we get just over
3,000 3D marks so that gives us
a I guess it's not that much of an
improvement so I guess NVIDIA knew what they were doing when they clocked this
card at what they did because I'm about to show you guys well first of all here
you can see that the temperatures are much lower so in this Benchmark we peek
at about 75° so I'll show you guys what I run into in terms of power consumption
and Acoustics so there you have it guys we
can can easily pull over 500 watts from
the wall um I've seen it Peak higher than that in games like Metro 2033 up as
high as around 550 to 570 Watts from the
wall with the GTX 590 overclocked the
way it is um one thing to note actually
is that in Metro 2033 I saw a bigger performance Improvement than I did in 3D
Mark uh in 3D Mark 11 um
I went from what was it hold on I got my
numbers here beside me
um yeah in 3D Mark 11 I saw like less
than 10% performance Improvement but in Metro 2033 it was closer to 15% so I'm
not really sure what's up with that but those were sort of informal testing
numbers so I don't put too too much stock in them as far as Max temps go it
looks like this is pretty similar to what we saw before so about 88 degre is
as high as it goes and since it can't focus worth anything there we go 88° is
about as high as we see it go but it is significantly louder so I'll throw a
couple audio clips onto the end of this one where I'll show the non- overclocked
versus the overclocked GTX 590 thank you for checking out my little video here on
the limits of the GTX 590 in terms of overclocking don't forget to subscribe
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