What chips are hiding in the HD Radeon 7000M and 600 M GeForce?

Changes of names without change of chip generalize for the two giants of the graphics card.

logo-AMD-Radeon-GraphicsHistorically, AMD and Nvidia have always first to ensure that demonstrate the power of their graphics processor to then work on mobile versions of these chips. For example, as the Cypress (Radeon HD 5800 Series) followed by the Redwood (Radeon HD 5600 Series) in AMD/ATi or the GF100 (GeForce 470 and 480) then out GF106 (GeForce 450) at Nvidia. Mobile chips which often marks the end of the development of an architecture optimized to ensure that it consumes still less energy.

As indicated you yesterday, the release of the Radeon HD 7000 will intervene in the coming weeks, it is therefore logical to think that their mobile versions will arrive after. But is not the case this time, the Sunnyvale firm wishing to do the opposite for this series. Last September, a first demonstration was made on a mobile version of the new architecture incorporating a chip engraved in 28 nm. This confirms the will of AMD to be first on the market of mobile phones.

To understand this situation, he must see that TSMC's time to finalise the method of production of 28 nm chips and started only to achieve good yields (according to the skier). You do the same calculation that we, this glue not really with the AMD roadmap which appeared on the Internet, pointing the output of the HD for 7000 series in three weeks. It is therefore a question of rebadging for these new mobile chips, which integrate processor series HD 6000 to ensure this tight planning. The GPU that will be beautiful and well engraved 28 nm... which should simplify the task to the skier, able to get out of the HD Radeon 7000M in times.

What is the most frustrating here, it is that the Radeon HD 5000 have been already rebadgées in HD 6000 in some cases without any performance gain. On the training games, the next generation of top-of-range GPU at 28 nm (Tahiti) move the VLIWs (Very Long Instruction Word) while the previous architecture (Trinity) will still use version 4 of these VLIWs derived from the 6900 HD, the series Cayman. And this while at the same time some 7000 HD will retain compatibility with version 4 of these instructions to be compatible in CrossFire with the Trinity versions. Even if the version 5 of these instructions is likely to go in the trash to keep this homogeneity, these modern training games could ensure a rise of the GPU with the arrival of Direct3D 11. Even if the version 4 and 5 are and will be compatible D3D 11, the next video games more rely more on these new APIs, which could disrupt the next series of AMD, without however creating a gap as important as in the past... Finally we hope.

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Table of the Radeon HD mobile our colleague AnandTech

To pass the range HD 7000M 6000M, we can expect to see land three or four models displaying a clock frequency a hair more high and operator of the not expensive GDDR5. 7500M HD can be interesting on paper, with its 480 processors flow - either as well as on the HD 7600M version, but with a 64-bit memory bus interface. What should impair its performance even if the GDDR5 on 64-bit bus could potentially be as fast as the 128-bit GDDR3. We will therefore wait to know the practical performance of these cards to bring to trial them.

To summarize, a third rebadgage of cards in a row is expected for the input and the mid range of the Mobile Radeon HD...

Nvidia Logo Geforce solide aout 2006The firm to the Chameleon was silently for its 600 M series. We therefore discover a GeForce 600 M which replace a 500 M without so far have reviewed frequencies increase. In detail, Nvidia has renamed its GeForce GT 555 M GT 635 m... same processor, same number of texture units, same frequency, short, everything like this. Except for the GDDR5, who will have right has a small thrust on the frequency from 3140 GHz to 3600 MHz, providing a little more bandwidth.

In addition, renaming drops new maps down to leave the place to the new environment maps and high-end as the GT 640 M, or even the GT 650 M, even if nothing was announced for the moment. For the price, we also hope the descent of the entry ticket to the same card but with a new name...

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Table of our colleague AnandTech for Nvidia cards

As for AMD and its Radeon HD 7000M maps, the 600 M GeForce seem for the moment that consist a marketing repositioning products to make room for new architectures. Nothing very interesting, and we are much more eager to see what future 7970 HD Radeon and GeForce GTX 680 (non-final names) were in the womb. Maps which later gave birth to real new mobile GPUS. As usual, the situation is very difficult to readable for the consumer who has printing buy - wrongly - a map of new generation. Which is always harmful...

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