Jawed
Legend
Those sections are about getting operands into the ALUs, describing the porting, ordering, interactions and how operand fetching can be manipulated for maximum utilisation.I took a peek, but it's mostly about, well, the ISA.
Jawed
AMD: R7xx Speculation
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Jawed
Mintmaster
Veteran
Sure, but that's after a batch/clause is already loaded. It doesn't really affect the A and B designs any differently.
If anything, the presence of temp registers confirm the feasibity of design B and its ability to have dependent ops in an instruction group. Moreover, a group of dependent ops will generally need less register access than parallel ops.
Those numbers seem pretty in line with what I'm seeing on my HD4870 in the Vantage Feature Tests and in real games. And for those who say that they can OC a GTX 260 to be even faster... just wait until you see the HD4870 when you OC it.
Jawed
Legend
So HD4690 is RV770 with coarse-grained memory redundancy. Much like GTX260, but with a much more severe reduction in memory. If ATI can only turn off half of the MCs (and L2s and RBEs), instead of a quarter, then it looks like NVidia is ahead on "fine-grained MC redundancy".
Jawed
Jawed
Japanese game developers would disappear though...Devs using negative LOD bias should be shot, though.
Lets see what G200B based "GTX 270" can do.
We'll see. NV isn't the only one who can pull rabbits out of their hat.
Yeah the GT200 cards are now officially in no man's land price/performance wise. I don't get why the Radeons are running so hot though...smaller process and fewer transistors.
It's probably because powerplay isn't supported yet
wasn't it supposed to come with 8.7?
Jawed
Legend
HD4850 has very slow fan speeds it seems.
What I don't get is why the drivers out there, including hotfix for HD4850, are apparently not making the most of the fan speed and Power Play. Indeed, if RV770 is supposed to be super-intelligent about power consumption, why is it idling so hot and not clocking down very far?
As for GTX260, well it looks dead. I'm suspicious about NVidia's driver quality, surely there's latent performance - even if it has been up and running for a few months.
Jawed
Pardon if someone already posted it, a quite large HD4870 review with benches and traslated (google)!
http://66.102.9.104/translate_c?hl=...iew.com/topic/2008-06-24/1214282167d9273.html
http://66.102.9.104/translate_c?hl=...iew.com/topic/2008-06-24/1214282167d9273.html
The heat issues that the HD4800 series are currently experiencing, are much like the issues the HD3800's were having: Fan speeds were set too low, and there some quirks in the drivers that needed patching.
Remember how ATI released BIOS updates to increase fan speeds on HD3870's, because enthusiasts were concerned over temperatures?
Anyway I'm sold on the HD4870 (2 of them in fact). After seeing how well they perform against G200, I'm utterly gobsmacked at how well DAAMiT have turned the ship around since R600. I mean, we're talking about a $299 card sometimes going head-to-head with a $649 card!
This is exactly what enthusiasts and potential PC gamers need--incredible bang for the buck.
Hmm how much can they drop the price on these cards? The BOM is around $220 or so
something seems to be very wrong with the gt200 series, could be drivers, its not offering that much increase in performance for what it has under the hood. It is using a new code base for its drivers, so that might be the cause, but I'm skeptical
I thought it'll compete very well. Make up your mind, will ya. Oh, and wasn't it supposed to be 3X faster than the GX2?Wasn't the 4870 supposed to be far slower than even the GT260?Complicated business this insider impersonation activity is.
read what I said just 3 pages back, what happened to CJ's 25% over the GTX, yah know things changed darastically over the past month and half. You were talking about Crysis without AA right? take a look at that review, these cards are neck and neck without AA, with AA guess what as I said the radeon pulls ahead. Yeah know Morgoth, go do some reviews, I'm sure you rape donkeys.....
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