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Crossfire Hibrido

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Extreme Level


entradas: 1051

19:54 18/12/2007


ATI previews hybrid Crossfire
GPU gang bang

By Charlie Demerjian: Thursday, 13 December 2007, 2:00 PM

ATI PREVIEWED HYBRID Crossfire today, and it looks like it will sell a lot of units. It was an early test, but had some pretty compelling features for the non-hardcore gamer set.

The hybrid refers to ganging up an integrated GPU with a discrete one to give those crappy Best Buy specials the ability to game at a low, low price.

The idea is simple, if you take an integrated GPU and try to game on it, you will know the meaning of the word slideshow. The ATI 690G took gaming on an integrated part from a joke to almost tolerable, and the upcoming 780G will be much faster, 3-4x faster than that. Almost tolerable.

If you plug in a real GPU, the integrated graphics shut off to the great loss of nothing, and the worst discrete parts take it from there. Hybrid with the 780G does a few things differently. First, the integrated part is pretty solid, about the equivalent of a standalone ATI RV610 chip. This makes it tolerable, but when you plug in an RV620, it adds to the power already there, making for an uncomfortably close to tolerable gaming.

In the demo, AMD had some Radeon HD 3450s and 3470s on a 780G board. The 34xx chips ran Call of Duty 4 at about 30 FPS alone. Turn on Hybrid Crossfire and you are perilously close to 60FPS at 1024 * 768. Crysis and Unreal Tournament III were also shown off, and they all skipped a bit but ran quite well in most cases.

This won't threaten 3870 sales, but then again, you are talking budget integrated graphics boards in the $70-120 range with a $50 add-in card. You can't beat that for price, and if you need more, there will be a range of SKUs, most likely three 780G variants at launch, and at least two RV620 cards.

In the end, performance won't stun you, but it won't be as disappointing as integrated GPUs of the past. You can plug in many GPUs, basically all 3xxx cards should work, but it will step them down to the speed of the slowest part, in this case the 780G. If you put in much more than a 36xx part, it will step down to slower than the card alone, but it should work. Stay tuned to the message boards, you know there will be at least one moron out there who does this and brags about it. Mock him.

There are some interesting tricks that you can pull with Hybrid Crossfire that are unavailable with normal cards. Other than the 780G supporting two monitors and a second GPU adding two more, they team up in some new and different ways. The card that you plug the monitor into becomes the master, and when the need for speed goes down, the machine will idle the slave part to save power. This is a carry-over from the laptop hybrid variants, and what it means is that controller location does not matter.

Initially, this power saving is driver controlled, but over the next year, there will be more additions to the tech allowing it to pull more tricks like passing data across bus so you can more or less put the master card to sleep and drive video from the slave if that would save power.

Stay tuned here, there are going to be some interesting tricks that will are rolled out. All 3xxx parts should support this as well, and it will be marketed under the powerplay name.

The parts will start coming out in January with the 3450 and 3470 being out first late in the month. Soon after, 780G parts will be out, but the official launch will be in the CeBit time frame. With the parts, the driver support will come through, and more tricks will come out over the following months.

Last, we come to an interesting technical addition called Sideport. What this is is a single optional memory chip on the motherboard that acts as a local frame buffer. You can have from 16-128M of memory, most likely DDR2, and it acts like local memory for the integrated graphics.

In the end, ATI did two things we liked, made an integrated graphics part that could get out of it's own way, and on top of it, added a bunch of technical tricks. We think the tricks will be the most useful for geeks, and they will undoubtedly trickle down to the rest of the line in one way or other.

For ATI, having its name associated with the only integrated GPU that does not blow for games is the biggest win. Who knows, AMD might even be able to turn it into a selling point.

buen en sencillas palabras, con el nuevo chip de ati(el 780G) cuando conectemos una VGA low end al sistema, se deshabilitara el GPU onboard como grafica principal pero apra dar lugar a un crossfire entre la VGA q tengamos en el puerto PCI-E y el GPU onboard.

La verdad es MUUUUY interesante esto, me gusto (Y), un punto muy a favor de ati.


Extreme Level


entradas: 1332

20:18 18/12/2007


Lo lei primero en chilehard :P
Frase trucha, pero las noticias de ahi son muy rapidas :P
ESta muy bueno, es para los gamers de bajo presupuesto xD

Postear compulsivamente es perjudicial para la salud

Extreme Level


entradas: 1282

21:29 18/12/2007


Eso va a ser una buena opcion para la gente que no invierte grandes sumas en sus equipos y asi poder tener una mejor performance con menos dinero… ahora todos van a poder jugar y ver pelis y tener app en 3d sin problema

Intel Core 2 Duo e7200 @ 4000mhz + Kingwin RVT 12025 HDT – GA EP35 DS3L – 2 x 1GB OCZ Platinum 2 925mhz – HIS Radeon HD 4850 – Western Digital Caviar 250Gb 16Mb + Western Digital Caviar 160Gb 8Mb – Power Cooler 500ss – Codegen Briza – Dell e228 WFP
|| ASUS EeePC 1005HA Black || || Nokia N78 ||
Hardcore Extreme Level


entradas: 13725

21:34 18/12/2007


jajaaajaa la verdad muy buena idea. Seguramente la implemente en mi próxima pc, si la próxima gen de vgas ati rinde bien

High End Level

Dr. Saturno

entradas: 996

21:55 18/12/2007


a un crossfire entre la VGA q tengamos en el puerto PCI-E y el GPU onboard.

no entendi, quieren hacer crossfire con la vga y la onboard?… como es, me lo explican bien.

Extreme Level


entradas: 1907

22:31 18/12/2007

Cita Iniciado por Dr. Saturno
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no entendi, quieren hacer crossfire con la vga y la onboard?… como es, me lo explican bien.

vos mismo lo dijiste… las vga de gama baja se complementan con el chipset para tener mayor rendimiento

Hardcore Extreme Level

ivan quaglia

entradas: 14363

23:38 18/12/2007


mmm.. no me convence pero puede servir para la gama baja… me resulta mas interesante la opcion multimonitor qeu te da algo asi

Hardcore Extreme Level



entradas: 4098

23:49 18/12/2007


Y esta bueno, como dijeron arriba, para los gamers de bajo presupuesto

Volvere… y en mayor numero.
No one will remember if we were good men or bad. Why we fought, or why we died.
All that matters is that two stood against many. That's what's important!, Conan "The Barbarian".
Nuevo miembro


entradas: 32

22:20 19/12/2007


Muy buena idea para el que de entrada no puede armar una PC groxa y que por ahi mas adelante compra una buena VGA y en ves de perder el video onboard, puede sarcarle algo de rendimiento extra. Sino seria al dope tenerlo deshabilitado.