Originally Posted by Liranan
Clock for clock Cyrix was faster than the Pentium II, as was the 486 faster than the Pentium I, P3 was much faster than P4 but guess what? IPC didn't matter because those with the higher IPC couldn't clock high enough, which is why the P4, P2 and P1 endured and the higher IPC parts didn't.
Now back to you with your pointless,terrible arguments.
The old Cyrix 686MX/MII was only faster than a Pentium II when running legacy 16-bit code that didn't require an FPU. If you were running Windows 95, it was faster, or if you were running legacy software on Win98. Anything else, the Pentium II was superior, and far superior for gaming on any platform. The FPU in the MII was basically the same FasMath x87 unit that Cyrix had sold as an upgrade for the i387 in old 386 machines several years earlier. It was a powerhouse in its day, but a dog when mated to a sixth-generation x86 CPU.
The only non-Intel CPU of that era that could consistently beat a Pentium II/III on 32-bit code was the AMD K6-III, and even it got beat handily in gaming because its FPU wasn't as strong as the Pentium's. If you were running software that only hit the ALU, a K6-III 450 could beat a P3-500, but in gaming, it was only about even with a P2-300. The double-pipelined FPU that was introduced in the Athlon was AMD's way of rectifying that weakness.
IPC mattered a lot for Cyrix when the 6x86MX was compared to the comparably-priced Pentium MMX for ordinary tasks. If you were just looking for something to get online with in the 1996-98 time frame, the Cyrix was much faster. Once the Pentium II went mainstream and the K6-2 arrived, there was really no reason to buy a Cyrix except they were dirt cheap.
You're dead wrong about the 486 vs. Pentium Classic. A Pentium was almost twice as fast in integer performance, and had about triple the FPU performance at the same speed. In no way was a 486 superior. It took a 133 MHz 486 to match the ALU performance of a Pentium-75. AMD sold such a chip for a long time, and introduced the "P rating" to sell it, the AMD 5x86-P75 that was actually just an ordinary 486 clocked at 133 MHz. What made them interesting is that some of them could run at 200 MHz on a 486 board with a 50 MHz bus speed, and hang with a P120. Using VLB was pretty much impossible at those settings, but they were pretty fast in their day.