Radeon HD 4770 Released, Industry's First 40 nm GPU

djisas · Apr 28, 2009

HTC dont trust random reviewers, check this one out, the only ones that can measure the power drawn from just the graphic card http://www.xbitlabs.com/articles/video/display/radeon-hd4770_5.html#sect0, the card alone draws a max of 50W...

btarunr · Apr 28, 2009

ktr said:
That is shockingly impressive. You can get two 4770 cheaper than a 4890 and be 20% faster...

I may just found my next pair of graphic cards (if I get around building a new rig).

What's more, it even beats GeForce GTX 285 according to this review.

ktr · Apr 28, 2009

btarunr said:
What's more, it even beats GeForce GTX 285 according to this review.

Again...very impressive crossfire performance.

Polarman · Apr 28, 2009

Not bad at all for CFX. But i'm still keeping my 4890.

BrooksyX · Apr 28, 2009

Hmm very tempted to sell my 4830 and pick up one or two of these. However my 4830 is an OCing beast and I don't know if I could pull the same numbers with a 4770. Probably not worth the extra cash to upgrade.

Does anyone know if these are coming in 1gb variants?

djisas · Apr 28, 2009

BrooksyX said:
Hmm very tempted to sell my 4830 and pick up one or two of these. However my 4830 is an OCing beast and I don't know if I could pull the same numbers with a 4770. Probably not worth the extra cash to upgrade.

Does anyone know if these are coming in 1gb variants?

I heard only reference 512MB cards for a while, also heard AMD does not want oc cards, yet...
A couple of months i suppose there might be custom designs with performance passing 4850 with all the little things that make ocers happy...

nafets · Apr 29, 2009

Nice to see ATI still hasn't figured out how to properly downclock the GDDR5 memory in 2D IDLE.

:banghead:

The card could be a supreme 2D IDLE low power contender if they reigned in the memory clocks. Way to go useless PowerPlay! Enable driver-based state switching (like the HD4870X2), and there would be power savings galore.

Well smart users can still do the underclocking themselves. It works but it's not automatic.

my_name_is_earl · Apr 29, 2009

I wish all the graphic card has silkscreen printing, it look much nicer than the paper sticker. that black colored blower look noticeably better than red. Maybe I'm just sick of seeing red blower.

Steevo · Apr 29, 2009

Everything I am seeing with these cards points to them being bandwidth starved. ATI should have put a on die cache on these.

Steevo · Apr 29, 2009

nafets said:
Nice to see ATI still hasn't figured out how to properly downclock the GDDR5 memory in 2D IDLE.

The card could be a supreme 2D IDLE low power contender if they reigned in the memory clocks. Way to go useless PowerPlay! Enable driver-based state switching (like the HD4870X2), and there would be power savings galore.

Well smart users can still do the underclocking themselves. It works but it's not automatic.

I have issues in Windows 7 with the driver based switching, it switches too fast sometimes and the core is still at high when the voltage just drops off the face of the earth and the driver sucess rate for recovery is about 60% currently. It is borking my overclocks

nafets · Apr 29, 2009

Steevo said:
I have issues in Windows 7 with the driver based switching, it switches too fast sometimes and the core is still at high when the voltage just drops off the face of the earth and the driver sucess rate for recovery is about 60% currently. It is borking my overclocks

What card are you using?

RadeonProVega · Apr 29, 2009

Diamond has one also
http://www.diamondmm.com/4770PE5512.php

W1zzard · Apr 29, 2009

Steevo said:
Everything I am seeing with these cards points to them being bandwidth starved. ATI should have put a on die cache on these.

all recent gpus have on die cache. how can it be bandwidth starved if it has the same bandwidth as a hd 4850 (assuming same memory clock)

Hayder_Master · Apr 29, 2009

so ATI do same NVIDIA falls but they cure it quick , they must release all 4770 with 40nm

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Radeon HD 4770 Released, Industry's First 40 nm GPU

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