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While the cores have multiple processing units for some things, wouldn't a multi core GPU be better than the current method of inefficient SLI and crossfire? With SLI and crossfire, of average you will see around a 30% performance boost. But when a chip like a CPU gets more than one core, the scaling is pretty much perfect. example: http://www.tomshardware.com/reviews/core-i7-gulftown-scaling,2663-4.html Wouldn't a single chip with an additional core work much better? it shouldn't be too hard for them to go from this
to this
sry for crappy photoshop :) it has been done with CPU's and it worked quite well for the core i7
PS the doubling of the GPU (2 dual core chips) also worked for the core 2 quad)
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GPU's are already multi-core, they're just represented differently. The ATi Radeon HD5870 has 1600 cores. What you're basically asking is that they double the number of cores on such a GPU from 1600 to 3200. That hasn't been done for the same reason that we don't have 12-core CPU's yet...because at current process sizes, such a chip would be too large. Yields would be significantly lower, power consumption would be unwieldy, and you'd at least double the heat output. Maybe you'll see GPU's with that many cores when they get down to 28nm. yep but what I am wondering is why cant they put 2 of those GPU dies on one chip kinda like what intel did with the core 2 quad They've already done that. The HD5970 and the GTX295 are dual-GPU graphics cards. In general, it's better to add more cores to one die (like they've been doing on GPU's for a while now) than to have two separate dies. You end up with a lot of duplicate components when you use two entirely separate dies, which wastes space and wastes power. Actually, AMD currently manufactures 12-core CPUs. In that case, "insert absurd number of cores here" instead :-P I just prefer multi core instead of multiple separate videocards as multiple cores on a single chip generally has less of a performance overhead (if any at all) and it is cheaper than having 2 cards or a single card with 2 separate GPU's like instead of a standard GTX 480, make a dual or quad GTX 480 (4 GPU dies or a merger of 4 on a single chip, then just put a giant heatsink that covers up 3-4 expansion slots in order to cool it There are a number of reasons that isn't possible at this time.
You're just going to have to wait for the next process shrink (down from 40nm to 28nm) before doubling the size of these high end GPU's becomes a technically viable option.
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