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HD 4770 Voltage Tweak

F

FragCat

Junior Member
Originally posted by: yacoub
That 128-bit bus really does hold that card back.
Even overclocked, it can't even match the bandwidth of my two-year-old 8800GT. 🙁
http://www.easyscreens.info/gallery/20090502/1.jpg
Guess there'd really be no point for me to spend $110 for one unless this card dies or something.
(And my card idles at 45C in an 80F degree room.)
Click to expand...

Obviously an error in that program. 4770 @ 1000mhz memory has more bandwidth than 8800gt @975mhz.
 
Originally posted by: yacoub
That 128-bit bus really does hold that card back.
Even overclocked, it can't even match the bandwidth of my two-year-old 8800GT. 🙁
http://www.easyscreens.info/gallery/20090502/1.jpg
Guess there'd really be no point for me to spend $110 for one unless this card dies or something.
(And my card idles at 45C in an 80F degree room.)
Click to expand...

8800GT to a 4770, I'd consider that to be a side upgrade which gives me a 10% to 20% increase in gaming performance.
 
Originally posted by: geokilla
Originally posted by: yacoub
That 128-bit bus really does hold that card back.
Even overclocked, it can't even match the bandwidth of my two-year-old 8800GT. 🙁
http://www.easyscreens.info/gallery/20090502/1.jpg
Guess there'd really be no point for me to spend $110 for one unless this card dies or something.
(And my card idles at 45C in an 80F degree room.)
Click to expand...

8800GT to a 4770, I'd consider that to be a side upgrade which gives me a 10% to 20% increase in gaming performance.
Click to expand...

Then just buy two of them at the same time 🙂
 
Originally posted by: Rick James
Originally posted by: geokilla
Originally posted by: yacoub
That 128-bit bus really does hold that card back.
Even overclocked, it can't even match the bandwidth of my two-year-old 8800GT. 🙁
http://www.easyscreens.info/gallery/20090502/1.jpg
Guess there'd really be no point for me to spend $110 for one unless this card dies or something.
(And my card idles at 45C in an 80F degree room.)
Click to expand...

8800GT to a 4770, I'd consider that to be a side upgrade which gives me a 10% to 20% increase in gaming performance.
Click to expand...

Then just buy two of them at the same time 🙂
Click to expand...

I'm just curious: why did you choose 2 x 4770 over 1 4890?
 
Originally posted by: Corporate Thug
Originally posted by: Rick James
Originally posted by: geokilla
Originally posted by: yacoub
That 128-bit bus really does hold that card back.
Even overclocked, it can't even match the bandwidth of my two-year-old 8800GT. 🙁
http://www.easyscreens.info/gallery/20090502/1.jpg
Guess there'd really be no point for me to spend $110 for one unless this card dies or something.
(And my card idles at 45C in an 80F degree room.)
Click to expand...

8800GT to a 4770, I'd consider that to be a side upgrade which gives me a 10% to 20% increase in gaming performance.
Click to expand...

Then just buy two of them at the same time 🙂
Click to expand...

I'm just curious: why did you choose 2 x 4770 over 1 4890?
Click to expand...

because it uses less power and cost less?
 
Can the same thing be done to a 4850? I've done the pencil mod for the GPU and got some good clocks out of it, but I'm a little concerned about doing a hard mod to the memory voltage. I'd love to be able to control it via software.

Sorry for hijack.
 
Originally posted by: Modular
Can the same thing be done to a 4850? I've done the pencil mod for the GPU and got some good clocks out of it, but I'm a little concerned about doing a hard mod to the memory voltage. I'd love to be able to control it via software.

Sorry for hijack.
Click to expand...

try finding a HD 4850 ASUS bios and flashing it. Then install ASUS Smart Doctor pretty sure that would work ^^
 
Originally posted by: lookouthere
Originally posted by: SickBeast
Originally posted by: Rick James
1Ghz core
1Ghz mem

http://gpuz.techpowerup.com/09/05/02/fwe.png
Click to expand...

This is madness!

:Q:Q:Q:Q:Q:Q:Q

Can it beat a 4870 at that speed? No wonder AMD doesn't want the partners to release overclocked versions yet...
Click to expand...

I doubt it would be 4870 because lack of bandwidth. If only using core clock, it's probably need more than 1ghz core clock
Click to expand...

I'll bet there are situations, particularly at lower resolutions without AA/AF, where the 4770 would win based on its raw GPU power alone. Certain games might also bring this about. IMO this would make a very interesting article...
 
Originally posted by: FragCat
mine is idle 51 and load 82 is that at 900/1000 1.1v wonder if this is a good temperature?
Click to expand...

82 is very hot; you should juice the fan speed. If that cools it to say 50-60C under load, then juice the volts to 1.3 and see if you can hit 1000/1000. :beer:
 
Originally posted by: firewolfsm
I thought it was GDDR5 memory with decent bandwidth?
Click to expand...

No, they had to go and neuter it by halving the bus width to 128, just to be sure it would not be a REAL bang-for-the-buck monster like it could have been.
 
Originally posted by: yacoub
Originally posted by: firewolfsm
I thought it was GDDR5 memory with decent bandwidth?
Click to expand...

No, they had to go and neuter it by halving the bus width to 128, just to be sure it would not be a REAL bang-for-the-buck monster like it could have been.
Click to expand...

AMD would not be able to make and sell the 4770 for $100 if it were 256 bits. Those bits really up the price of a card.
 
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