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NVIDIA Predicts 570x GPU Performance Boost
Gianna Borgnine writes "NVIDIA is predicting that GPU performance is going to increase a whopping 570-fold in the next six years. According to TG Daily, NVIDIA CEO Jen-Hsun Huang made the prediction at this year's Hot Chips symposium. Huang claimed that while the performance of GPU silicon is heading for a monumental increase in the next six years — making it 570 times faster than the products available today — CPU technology will find itself lagging behind, increasing to a mere 3 times current performance levels. 'Huang also discussed a number of "real-world" GPU applications, including energy exploration, interactive ray tracing and CGI simulations.'"
Or... not.
Currently CPUs and GPUs are stamped together. Basically, they take a bunch of pre-made blocks of transistors(millions of blocks, billions of transistors in a GPU), and etch those into the silicon, and out comes a working GPU.
It's easy - relatively speaking - and doesn't require a huge amount of redesign between generations. When you get a certain combination working, you improve (shrink) your nanometre process and add more blocks.
However, compiler technology has advanced a lot recently, and with the vast amounts of processing power now available, it should be simpler getting more complex blocks fully utilized. A vastly more complex block, with interconnects to many other blocks, could perform better at a swath of different tasks. This is evident when comparing the performance hit from Anti-Aliasing. Previously even 2xAA had a huge performance hit, but nVidia altered their designs, and now Multisampling AA is basically free.
I recall seeing an article about a new kind of shadowing that was going to be used in DX11 games. The card used for the review got almost 200fps at high settings - with AA enabled that dropped to about 60fps, and with the new shadowing enabled, it dropped to about 20fps. It appears the hardware needs a redesign to be more optimized for whatever algorithm it uses!
Two other factors you're forgetting...
1) 3D CPU/GPU designs are coming slowly, where the transistors aren't just on a 2D plane... that would allow vastly denser CPUs and GPUs. If a processor had minimal leakage, and low power consumption, 500x more transistors wouldn't be a stretch.
2) Performance claims are merely claims. Intel claims a quad-core gives 4x more performance, but in many cases it's slower than a faster dual-core.
570x faster for every game? Doubtful. 570x faster at the most advanced rendering techniques being designed today, with AA and other memory-bandwidth hammering features ramped to the max? Might be accurate. A high end GPU from 6 years ago probably won't get 1fps on a modern game, so this estimate might even be low.
A claim of 250x the framerate in Crysis, with everything ramped to the absolute maximum, might be even accurate.
But general performance claims are almost never true.
You can -- that's what people are trying now. The issue is that in order for the GPU's to communicate, they've got to go over the PCI Express bus to the motherboard, and then via whatever interconnect you use from one motherboard to another.
I don't know all the details, but the people who have studied this say that PCI Express (or, more specifically, the PCI Express to Infiniband connection) is a serious bottleneck.
I'm sure this is just another case of some moron seeing 570% increase and going, WoW! my next GPU will be 570 TIMES faster!!
For the rest of us of course 570% increase is 5.7X faster.
So, CPUs increasing 3X in the next 6 years and GPUs increasing 5.7X I can maybe believe.