mp...@suse.com (Mark Post) writes: > Not particularly. From the work that Barton Robinson et. al. of > Velocity Software has done, pretty much "A GHz is a GHz."
re: http://www.garlic.com/~lynn/2012l.html#51 Turn Off Another Light - Univ. of Tennessee http://www.garlic.com/~lynn/2012l.html#56 Turn Off Another Light - Univ. of Tennessee http://www.garlic.com/~lynn/2012l.html#57 Turn Off Another Light - Univ. of Tennessee current day ratio of memory access to processor cycle is similar to 60s ratio of disk access to processor cycle ... modern day cache misses are comparable to 60s disk i/o latency (measured in terms of processor cycles) ... giving rise to out-of-order execution, branch prediction, speculative execution, hyperthreading ... as means of providing overlapped execution during cache misses and memory access delays ... techniques that risc have been working with for decades ... and introduction of out-of-order execution is credited with major part of recent mainframe thruput increases. Instructions per second http://en.wikipedia.org/wiki/Million_instructions_per_second Has Intel Core i7 Extreme Edition at (Dhrystone) 178BIPS e5-2690 (two socket, 8cores/chip) review http://www.istorya.net/forums/computer-hardware/485176-intel-xeon-e5-2690-and-e5-2660-8-core-sandy-bridge-ep-review.html from above: (Dhrystone) E5-2690 @2.9GHZ 527.55BIPS E5-2660 @2.2GHZ 428.15BIPS X5690 @3.45GHZ 307.49BIPS i7-3690 @4.78GHZ 288BIPS AMD 6274 @2.4GHZ 272.73BIPS (Whetstone) e5.2690 @2.9GHZ 315GFLOPS E5-2660 @2.2GHZ 263.7GFLOPS X5690 @3.4GHZ 227GFLOPS i7-3690 @4.78GHZ 176GFLOPS AMD 6274 @2.4GHZ 168.11GFLOPS -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
