HD 4770 Voltage Tweak

[SickBeast]

Originally posted by: FragCat
http://www.xtremesystems.org/f...howthread.php?t=223573 these guy got 1000 on the core too. I can reach it but my temps are way to high my computer

It sounds like it would be worth it for you to install aftermarket cooling. I'm pretty sure a silencer costs under $20.

 

[Corporate Thug]

Originally posted by: lookouthere

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.)

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

Then just buy two of them at the same time

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

because it uses less power and cost less?

well, the 4890 has dipped below $200 before, so the pricing is comparable. I would love to see some 4770 xfire benchies that include power consumption though...

 

[SickBeast]

Yeah someone should do a 4770 xfire review and o/c them with the hacked bios for more voltage.

 

[Rick James]

I hate how you can't quote multiple people on this forum.

Why two 4770's over a 4890? Easy. I like xfire more then a single card. Plus the price was right.

Temps at 1000c are 60C with the fans on high and 1.3v. They never raise above 65C.

 

[SickBeast]

Originally posted by: Rick James
I hate how you can't quote multiple people on this forum.

Why two 4770's over a 4890? Easy. I like xfire more then a single card. Plus the price was right.

Temps at 1000c are 60C with the fans on high and 1.3v. They never raise above 65C.

Can you run 3dmark at default settings for us?

I'm curious as to whether it's faster than the 4890.

Maybe run some games and using fraps see how your framerates compare to what Anand got on the 4890. :light:

You can quote multiple people but you have to do it manually or just use a generic quote symbol with the square brackets and a Q in the middle.

 

[Rick James]

Originally posted by: SickBeast

Originally posted by: Rick James
I hate how you can't quote multiple people on this forum.

Why two 4770's over a 4890? Easy. I like xfire more then a single card. Plus the price was right.

Temps at 1000c are 60C with the fans on high and 1.3v. They never raise above 65C.

Can you run 3dmark at default settings for us?

I'm curious as to whether it's faster than the 4890.

Maybe run some games and using fraps see how your framerates compare to what Anand got on the 4890. :light:

You can quote multiple people but you have to do it manually or just use a generic quote symbol with the square brackets and a Q in the middle.

Sure.

3Dmark06 :

Single 4770 :
http://i725.photobucket.com/al...252/2MCHBoost/4770.jpg

Xfire :
http://i725.photobucket.com/al...52/2MCHBoost/xfire.jpg

I'll have some overclocked ones in an hour or so.

 

[SickBeast]

Wow so you're getting 24.5K whereas most people are only getting 18.5K on the 4890. You might be onto something there. :beer:

Did you have your cards overclocked to obtain that score?

I would love to see a full suite of benchmarks on a rig like yours. You should volunteer to help someone write a review. YGPM

 

[Rick James]

Originally posted by: SickBeast
Wow so you're getting 24.5K whereas most people are only getting 18.5K on the 4890. You might be onto something there. :beer:

Did you have your cards overclocked to obtain that score?

I would love to see a full suite of benchmarks on a rig like yours. You should volunteer to help someone write a review. YGPM

Both the links i posted above were on stock clocks. The 24,696 was in Xfire with an 830c and 830m.

 

[SickBeast]

Originally posted by: Rick James
Both the links i posted above were on stock clocks. The 24,696 was in Xfire with an 830c and 830m.

Oh man you've created a monster. :Q

IMO you should flash to the crazy bios and get 'em up at 1ghz each.

Feed the fish and you'll be a sexy man. :light:

 

[angry hampster]

Originally posted by: yacoub

Originally posted by: firewolfsm
I thought it was GDDR5 memory with decent bandwidth?

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.

ATI has already saturated the market very heavily with models competing with each other. I doubt they'd want to slot something between the 4850 and 4870.

 

[SickBeast]

Originally posted by: angry hampster

Originally posted by: yacoub

Originally posted by: firewolfsm
I thought it was GDDR5 memory with decent bandwidth?

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.

ATI has already saturated the market very heavily with models competing with each other. I doubt they'd want to slot something between the 4850 and 4870.

Yeah the 4770, 4830, 4850, 4870, and 4890 are almost the same.

Aren't they all based on the same GPU at the end of the day? 640 vs. 800 shaders?

I think I would take 640 shaders at 40nm over 800 shaders at 55nm.

 

[cbn]

Originally posted by: SickBeast

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

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...

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

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...

I've wondered myself about these High GPU power vs lower bandwidth situations? You are saying lower resolutions with little or no AA/AF would help?

 

[SickBeast]

Originally posted by: Just learning
I've wondered myself about these High GPU power vs lower bandwidth situations? You are saying lower resolutions with little or no AA/AF would help?

Yep. It's sorta like creating a situation where you're CPU limited, but in this case you're just eliminating the need for bandwidth and tapping into the raw power of the GPU.

The thing is, people buy these cards so that they can game at super high resolutions so it's not all that useful.

 

[Rick James]

Originally posted by: SickBeast

Originally posted by: Rick James
Both the links i posted above were on stock clocks. The 24,696 was in Xfire with an 830c and 830m.

Oh man you've created a monster. :Q

IMO you should flash to the crazy bios and get 'em up at 1ghz each.

Feed the fish and you'll be a sexy man. :light:

Already flashed the Bios and been at 1000c/1000m. She doesn't like 1000c at all. It seems to perform best in the 950-960c range but the memory loves it at 1.15Ghz

 

[SickBeast]

Originally posted by: Rick James

Originally posted by: SickBeast

Originally posted by: Rick James
Both the links i posted above were on stock clocks. The 24,696 was in Xfire with an 830c and 830m.

Oh man you've created a monster. :Q

IMO you should flash to the crazy bios and get 'em up at 1ghz each.

Feed the fish and you'll be a sexy man. :light:

Already flashed the Bios and been at 1000c/1000m. She doesn't like 1000c at all. It seems to perform best in the 950-960c range but the memory loves it at 1.15Ghz

So do that in xfire and give us the 3Dmark pls. :beer:

 

[fffblackmage]

wow, 2x4770 in xfire is quite impressive.

it's rather unfortunate i dont have a xfire capable mobo =/

 

[SickBeast]

I'm sure you could sell your board on FS/FT if you really wanted to.

 

[fffblackmage]

Originally posted by: SickBeast
I'm sure you could sell your board on FS/FT if you really wanted to.

no nooooooo, dont tempt me!

 

[AzN]

Originally posted by: SickBeast

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

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...

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

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...

Yeah at 1000mhz core clocks it would have more core power than 4870 although 4870 would have more bandwidth.

 

[Hicxzy]

Hey guys, I got the DFI P45-T2RS the other day, and its 8x/8x XF on that board. Thinkin about XF:ing two 4770s, will I lose any noticable performance?

 

[happy medium]

Originally posted by: Hicxzy
Hey guys, I got the DFI P45-T2RS the other day, and its 8x/8x XF on that board. Thinkin about XF:ing two 4770s, will I lose any noticable performance?

If it's a pci-e 2.0 8x/8x you won't lose any performance.

Pci-e 1.0 16x = pci-e 2.0 8x and only ultra highend cards will bottlneck with pci-e 16x 1.0.

 

[Hicxzy]

Thanks mate! Well yea it's a new board so ofc it's 2.0.

 

[daskobold]

Anyone else having problems getting Smartdoctor to adjust the voltage on the second card in a Crossfire setup? First card overclocks great with voltage adjustment but second card will not overclock at all. Checked both cards with multimeter and second card is still running at default volts.

 

[Sylvanas]

You don't really need to flash the Bios, try Voltage Tuner

 

[daskobold]

Voltage Tuner is a nice program but you need a Volterra voltage controller to use it. I know that Sapphire 4770 use a L6788A controller from ST Microelectronics which is controllable by software but I don't think there are any programs written for it yet.