ATI Debuts Mobility Radeon HD 4000 Series at CES

well i just oversaw some ATI guys speak with some gpu engineers at the CES show, they had a spec sheet on the ati mobile 4870 version over a desk and i quickly glanced at it. the specs i saw and remember are,

GPU: RV770M
Interface: PCI-E 2.0 x16
Core Clock: 550 MHz
Shader Clock: 550 MHz
Memory Clock: 1400 MHz
Memory Bandwidth: 89.6 GB/sec
FLOPS: 880 GFLOPS
Pixel Fill Rate: 8800 MPixels/sec
Texture Fill Rate: 22000 MTexels/sec
Memory Type: GDDR5 of 512mb and 1GB

 

core clock is too low imo.
the memory clock should be 700mhz (2800mhz effective)

i hope that's not finalised, cos right now the mobility hd4870 is slightly faster than a overclocked hd4830 (740gflop at stock), i was hoping it could atleast beat the hd4850 desktop.
still, if those specs are right, it can be deducted
mobility 4870>hd4830>8800gt/9800gt>9800m gtx. so with a bit of luck it would be faster than a fx 3700m as well.
hats off to ati.

 

Those specs don't look right, 1400 MHz memory can't be the regular clocks since it's way too high. It can't be effective either since that would make it 700 MHz GDDR3 or 350 MHz GDDR5.

If the memory is so far off of incorrect, I'm dubious of the rest. How do you know that was the 4870 not the 4850?

 

Clocks there are way lower than I'd expect. If true, let's hope it's price is low enough to wake up Nvidia.

That does look more like the 4850...

 

In order to achieve the rated bandwidth of 89.6GB/s on a 256 bit memory interface, you will need 2800 MHz. GDDR3 isn't going to work, as far as I've seen, they've only gone up to 2200 MHz DDR effective. So this leaves us with the only viable candidate, the GDDR5. Its desktop sibling's GDDR5 runs at 900 MHz (3600 MHz DDR), so it would naturally make sense to have the mobile version clocked at 700 MHz to get the needed 2800 MHz to achieve that bandwidth.

 

I just remembered that ichime already posted the specs.

 

One way or another, not all of yotano's specs match up with the figures, so something's off.

 

Yes, there certainly is some descrepancy between the AMD/ATi slide and the information from that site, because according to the slide, the core frequency to achieve 880 GFlops should be 550 MHz. Otherwise, every thing else fits into place.

 

The problem though is yotano's specs say memory clock 1400 MHz, which can't be effective or frequency, since it's either 5600 effective (GDDR5), or 2800 effective (GDDR3).

We'll see.

 

Thanks for your input yes I did mean mb lol. anyway that msi is on amazon but it says for pre order so I have no idea when it's going to be actually available for them to ship since it says Date first available at Amazon.com: December 6, 2008 and it's now jan 10th 2009 and it's still a pre oder here is the link http://www.amazon.com/MSI-GT725-075US-17-Inch-Laptop-2-53Ghz/dp/B001N44U94/ref=pd_rhf_p_t_1 they also have this one http://www.amazon.com/MSI-GT725-074US-17-Inch-Laptop-2-4Ghz/dp/tech-data/B001N44U9E/ref=de_a_smtd I think for a few hundred more the first one is the one I'll get. Still looking to see if I can find the msi someplace else but I like amazon, let me know if you find anyone else selling these yet. However I was looking at some other threads here and saw the gateway 7805u and for $1050 that's a pretty good deal. Hmmm... any thoughts on that machine would you wait to find an msi or is the gateway too good a deal to pass up?
Thanks this place rocks!

 

There might be a potential problem though.
Won't companies such as Alienware charge a hefty sum of money regardless if ATI gpu's are cheaper compared to Nvidia?
In essence, we will probably be looking at a slightly reduced price tag because every other component in the laptop will be coupled with another much more powerful (costly) component for which these companies like to charge a lot of money.

If we compare customizable solutions as far as notebooks are concerned ... the companies in question like to charge well over $100 or £100 for a very small cpu core clock increase (even if they remain within the same generation).
RAM for example is also another issue ... they love to overcharge a jump from 2GB to 4GB alone (it's also much worse if people choose 800 Mhz over 667 on DDR2 ... let alone DDR3).
Or even increasing exponentially prices in hdd's when it comes to storage space and speed.

Either way, isn't there a possibility we will be faced with a minor price reduction overall?

 

Yes, 1400 MHz would be incorrect, but it's 2800 MHz effective for either GDDR3 or GDDR5. A memory clock of 5600 MHz would result in a bandwidth of 179.2GB/s, which hasn't even been done by any current single GPU with 256 bit memory interface. You need to remember in order to get the SDR speed of GDDR5, you have to divide the effective speed by four, not two like you would do with DDR2/3.

http://en.wikipedia.org/wiki/GDDR5

 

I would go with the MSI since it has the turbo mode, a better GPU, bluetooth, (battery life?).

 

I know the difference between GDDR5 and GDDR3, I also know the bandwidth listed, and I know the memory block and memory type listed. I keep saying that somewhere, something is wrong, and you keep trying to educate me on things I already know.

 

i think it's just 700mhz(1400) gddr3 and or 700mhz(2800) gddr5.

 

try looking at this

http://www.engadget.com/2009/01/08/a...p-at-ces-2009/

 

Link is broken.

 

Fixed: http://www.engadget.com/2009/01/08/asus-debuts-18-4-inch-w90-gaming-laptop-at-ces-2009/

 

I would like that. But it's too big and expensive to take to university. (Probably bigger than most of the desktops in the Comp Sci area... )

 

I don't think that will happen anytime soon since the die is so massive (there literally won't be any room since it's so huge).

 

4870 already has shown up the 9800M GTX. nVidia fanboys won't see triple SLI any time soon. Btw the actual GTX 280 (GT200) is being skipped, there will be no mobile version. H4 09 will have GT212/5/6/8 coming in though (lower process GT200).

 

From this forum. Users have tested the HD 4850 lower clocked to match the mobile version and it beats out the 9800M GTX quite handily. The 4870 is an even better version. Also, there are some of the Asus W90 4870 in Crossfire vs. 8800M GTX (which is the same as 9800M GT) and one can extrapolate from the difference btw 9800M GTX and the 8800M GTX/9800M GT.

 

Wow you're retarded to have a desktop gpu vs a laptop gpu. You have bus speed limitations and you have to take laptop/desktop specs don't even compare. You have no idea what the hell you are talking about.

 

...and liquid cooling.

 

I think it's better to wait for official benchmarks of the new Mobility Radeons before we conclude which is better.

Notebookcheck puts it at the highest of all the single GPU configuration, but as we all know, their list is pretty vague and poorly done.

 

That's a bit uncalled for, dont you think?

 

We should all be hoping the entire 4000 series turns out well, as Nvidia has stagnated the mobile market with overpriced GPUs and constant renames of old technology.

Example: There are 9 midrange chips built on the same exact core! Count them! 8600m Gt to 9700m Gt, each released under a different name, with barely differing clocks.

Example: An aftermarket 9800m GTX is $800 United States Dollars! A 9800m Gt? $500! Only a company which has zero competition could pull off this kind of rapeage.

Notebook gaming has been left in the dust, mainly because Nvidia has had no reason to improve anything, as it's been the only serious option for years. Well dammit, no more. I hope the 4670 crushes all comers in the 128-bit range, and the wise enthusiast will also root for ATi to decimate Nvidia's hold on the high end mobile market as well.

 

Do you even know what you're talking about? The mobility 48xx series is based directly off from the same architecture of the desktop 4850. They lowered the specs to match the notebook 48xx. It's not a perfect match but it gives a good idea of performance. Bus speed is negligible, no card will ever saturate it. The specs of the notebook steam processors (800), memory bus width (256-bit) and core design are the same in notebook as with the desktop.

 

And you ought to read the links posted earlier.

http://www.techreport.com/discussions.x/16185

 

Thanks for the link, cathy.

 

The Physx technology now offered by Nvidia sounds pretty cool, especially when I saw the video of it in action on the PC version of Mirrors Edge. Is there any way to make it work on ATI GPUs? I think it can still work in software mode without having a current Nvidia GPU or Ageia PPU?

I've also been disappointed by Nvidia's monopoly and laziness in the mobile GPU front. Just as ATI really showed Nvidia last year with their desktop HD4000 cards, I hope they can repeat it now in notebooks.

 

How about this: http://www.tomshardware.com/news/nvidia-physx-ati,5764.html

 

read the thread man.

it's totally deductable from what we know that the hd4870 will beat the 9800m gtx(a downclocked 8800gt).

 

Unlike you I won't resort to name calling.

Stream processors are the same count, same 256-bit interface, the only difference is clocks. Unlike NVidia who nerfs the SP's as well, the HD 4800 series will be identical in specifications to the desktop equivalent except for lowered clocks.

You know why it's 'retarded' to compare desktop to laptop GPUs? Because of manufacturers who completely underpower and remove features from notebook editions. When a series comes along that doesn't remove anything except lowering clocks, (HD 4800), that's what we should have had all along from both sides.

 

yup obviously there are ppl who think the mobile gpu world including ATi has to revolve around nvidia

 

i think Jlbrightbill is one of them.

 

Except he happens to be making a very valid point.

 

Could anyone downclocks his 4850 or 46570 to the mobile versions clocks and post the 3dmark06 scores here?

 

I believe someone did in another thread...

 

My downclocked 4850 with processor set to dual-core affinity and clocked at 2.4 Ghz scored ~30-31 FPS in the Crysis benchmark at 1680x1050 all High.

 

3Dmark06 score plz sir?

 

I did the same thing as Jl did, but on Windows Vista Ultimate 64 bit. I'll post Crysis, 3d06 and Vantage in a few.

Edit: Here are Crysis numbers of a downclocked 4850 with stock Q6600

 

Ok, I have screenshots of 3d06 (550mhz and 500mhz clocks, 750mhz memory) and Vantage (500mhz core, 750mhz memory). But imageshack isn't working for me for some reason. So I'll just post the hard numbers

3dmark06, Q6600 @ 2.4ghz, all cores running, 550mhz core, 750mhz memory:

SM2.0 score: 3966
SM3.0 score: 4700
CPU score: 3576
Overall: 10500

3dmark06, Q6600 @ 2.4ghz, all cores running, 500mhz core, 750mhz memory:

SM2.0 score: 3734
SM3.0 score: 4488
CPU score: 3500
Overall: 10016

3dmark06, Q6600 @ 2.4ghz, 2 cores running, 500mhz core, 750mhz memory:

SM2.0 score: 3457
SM3.0 score: 4294
CPU score: 1703
Overall: 8551

3dmark Vantage, Q6600 @ 2.4ghz, all cores running, 500mhz core, 750mhz memory:

GPU score: 5125
CPU score: 8691
Overall: P5711

 

XS.to is a better host, try your shots there.

 

Well hope they provide enough cooling for the 4870´s so one can overclock them a wee bit higher.

This should set fire on Nvidia to get some new notebook GPU´s out and not just rehashes all the time of the very same GPU lower nm.

 

Any opinions on how the Mobility 4870 will compare to the Quadro FX 3700M?

 

All from notebookjournal.de

 

Any ideas when these will be available in notebooks like Dell, Sony, etc.?

 

Thanks, Cubic X. Got anything that *didn't* come out of ATI's marketing dept.?

 

Two things.

1. Odd that the other cards both allow for 7.1 multi-channel audio over the display port (DP) but the new 4800 series do not.?????? Wonder if a laptop with the 4850 and an HDMI port will pass the audio.

2. How well will the 4850 stack up against the 9800GTS?