The well-known for his analyzes and overviews Japanese tech journalist Hiroshi Shigeru Goto (Goto Hiroshige) has highlighted the known changes informative.
The "Kaveri" APU is known first manufactured in 28nm bulk process at Globalfoundries, while the predecessor " Richland "," Trinity "and" Llano "with the same contract manufacturer in 32-nm SOI process are made. CPU side based "Kaveri" Although fundamentally on the " Bulldozer "architecture in the module structure, however, to" come Piledriver "second revised version called" Steamroller "is used. Such as AMD already in June 2012 had revealed, the manufacturer goes one step away from this shared resource in the direction of more single-thread performance - the latter is one of the major weaknesses of bulldozers.Source: pc.watch.impress.co.jp
The top graph shows that some of the formerly shared resources within a module dedicated is back for individual threads available, decoders, and dispatch units in a module now available twice, which, together with a revised branch prediction is to provide higher performance . Last summer, AMD had spoken again of a performance increase through design improvements by up to 15 percent over piledriver per watt.
On the part of the integrated GPU follows VLIW5 (Llano) and VLIW4 (Trinity / Richland) now introduced some years ago in dedicated Radeon graphics cards Graphics Core Next architecture (GCN) that their APU debut in the low-power chips " Temash "and" Kabini "recently celebrated. With up to 512 stream processors, the number of shader units is significantly increased. During the presentation of a new server roadmap, AMD had a few weeks ago, the number of up to 512 stream processors for "Cauvery" on the basis of the planned for early 2014 server counterparts "Berlin" confirmed . There was also a processing performance of 700 GFLOPS for a Berlin APU with 35 watts speech 4Gamer compared this with a Radeon HD 7750 with the same number of shader that returns at 800 MHz GPU Clock 819 GFLOPS. The different structure of the graphics unit of Cauvery in comparison to its predecessors illustrate the following sketches.
more @ AMD Kaveri APU information thread