thetonestarr said: By the way, when I said "four times more powerful", that was purely clock-speed and core-comparison calculations. Y'know, sheer brute-strength-type factors. Other things like a L1, L2, and L3 cache, available RAM, multithreading capabilities, and newer, more efficient technology are things I consider "strength efficiency" factors - the ability to UTILIZE that strength. WiiU's Power7-based processor is going to be respectably more powerful than Xenon, but the trick is the efficiency of the processor. Ever since multicore processors came out, the advancements haven't been as much in the area of brute strength but in efficiency of the power that's already been around for a long time. So, the simple numbers don't explain things as well nowadays - it's the smaller details that are key. I mean, my computer has a 3.015GHz quad-core processor in it, but it's an older AMD Phenom II X4. An Intel Core i7 with the same number of cores but clocked at 2.8GHz is probably vastly more capable than mine, even if mine has more brute strength. It's all the type of processor nowadays with CPUs - not simply clock-speed and core count. |
You were making a very good point but I think you gave a bad example. You can't calculate the "brute strength" just from the number of cores and the clock frequency. For example, two CPUs with exactly equal clock and number of cores can have a huge brute strength difference just simply from having more complex instructions than the other or more ALUs than the other, which enables them to perform more work per cycle.
The cache example you touched is a good one... Intel's low-cost Celeron line is basically the same CPU with little or no cache, which means the CPU will be starved for data in many applications, even though it has the same "brute strength" as its non-Celeron counterpart.
My Mario Kart Wii friend code: 2707-1866-0957