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Table 2 Performance estimation of LR vs. in-order

From: An optimizing pipeline stall reduction algorithm for power and performance on multi-core CPUs

Metrics LR In-order Tomasulo
Instructions per cycle (IPC) 0.2462 0.2442 0.7327
Clocks per instruction (CPI) 4.061 4.09 1.3648
Simulation speed (inst/sec) 785 606 98021.9
Total number of instructions executed 40516 41004 2350639
Time/Program 164535.476 167706.36 3207982.549