Intel Next-Gen CPU Has Memory Controller and GPU 307
Many readers wrote in with news of Intel's revelations yesterday about its upcoming Penryn and Nehalem cores. Information has been trickling out about Penryn, but the big news concerns Nehalem — the "tock" to Penryn's "tick." Nehalem will be a scalable architecture with some products having on-board memory controller, "on-package" GPU, and up to 16 threads per chip. From Ars Technica's coverage: "...Intel's Pat Gelsinger also made a number of high-level disclosures about the successor to Penryn, the 45nm Nehalem core. Unlike Penryn, which is a shrink/derivative of Core 2 Duo (Merom), Nehalem is architected from the ground up for 45nm. This is a major new design, and Gelsinger revealed some truly tantalizing details about it. Nehalem has its roots in the four-issue Core 2 Duo architecture, but the direction that it will take Intel is apparent in Gelsinger's insistence that, 'we view Nehalem as the first true dynamically scalable microarchitecture.' What Gelsinger means by this is that Nehalem is not only designed to take Intel up to eight cores on a single die, but those cores are meant to be mixed and matched with varied amounts of cache and different features in order to produce processors that are tailored to specific market segments." More details, including Intel's slideware, appear at PC Perspectives and HotHardware.
Re:Is AMD beaten? (Score:1, Informative)
In fact, Intel Quad processors currently are two dual-core dies mashed together, where AMD is coming out with a pure Quad core solution. It wouldnt be surprising to see them gain a temporary advantage. (the back and fourth is amazing for consumers) http://www.legitreviews.com/article/426/1/ [legitreviews.com] (includes a picture!)
Re:Is AMD beaten? (Score:5, Informative)
AMD is capable of great things but Intel has set their minds on dominating the processor world for at least the next 5 years and it will take nothing short of a major evolutionary step from AMD to bring things back into equilibrium. Whilst AMD struggles to get their full line onto the 65nm production scheme, Intel has already started ramping up the 45nm, and that's something that AMD won't quickly be able to compete with.
Intel's latest announcement of modular chip designs and further chipset integration are interesting but I'll reserve judgement until some engineering samples have been evaluated. I'm not ready to say that an on-board memory controllers is hands-down the best solution, but I do agree that this is a great step towards mobile hardware (think smart phones / pda's / tablets ) using less energy and having more processing power while fititng in a smaller form factor.
More information (Score:3, Informative)
Re:Is AMD beaten? (Score:3, Informative)
I noted above that the ray tracing techniques are really pseudo-ray tracing - they don't completely linearly trace the ray to the surface - usually they have linear and binary trace components (binary means they split the remaining distance in 2 and see if a surface is hit, then backtrack as necessary, but this could result in the wrong surface being hit and aliasing occurring). As GPU speed increases, we may see this do actual ray tracing.
See Relief Mapping, Parallax Occlusion Mapping, Displacement Mapping, etc.
Nothing That New (Score:2, Informative)
Re:*snore* (Score:3, Informative)
Generally for a type of memory, the larger its capacity, the larger its latency becomes and the smaller the throughput you'll get from it. A memory hierarchy is sometimes seen as a solution to reduce memory system cost, but more fundamentally, as silicon technologies evolve, it also reflects an inherent characteristic of memories - either large or fast, you can't have it both ways.