AMD and nVidia have both introduced their next-generation mobility GPUs, the Radeon HD 7000M and GeForce 600M, but initially only for mainstream.
AMD refreshes include Radeon HD 7600M, 7500M and 7400M. The HD 7400M series is based on the same Seymour XT chip powering HD 6400M. The same applies for HD 7600M, based on Whistler, which powered HD 6600M/6700M. However, in both cases, the HD 7000M parts should end up faster due to higher clocks. HD 7600M should end up performing more like HD 6700M. HD 7500M is now based on 480SP Whistler, over 400SP Capilano for the HD 6500M, and also introducing GDDR5 memory with a 64-bit memory bus. However, some SKUs in the HD 7500M series will continue to utilize DDR3.
nVidia's new products include GeForce GT 635M, GT 630M and 610M. There are no changes whatsoever and are direct rebrands of GeForce 500M GPUs. The GT 635M replaces all the variants of GT 555M, GT 540M is rebranded as GT 630M and GeForce 520MX is now GeForce 610M.
Those new GPUs are still manufactured with TSMC 40nm fab process. The true next-gen with 28nm will most likely find its way as HD 7700M, 7800M and 7900M, as well as GT 635M to GTX 690M, in 2012.
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