PEBKAC
Intel Core i7 testing with a Apple MacBook Air and Intel HD 3000 384MB on OS X 10.8.2 (12C60) via the Phoronix Test Suite.
HTML result view exported from: https://openbenchmarking.org/result/1211187-AR-PEBKAC82009&sro&gru.
Threaded I/O Tester
Test: Read - Size Per Thread: 128MB - Thread Count: 16
Threaded I/O Tester
Test: Write - Size Per Thread: 128MB - Thread Count: 16
Threaded I/O Tester
Test: Random Read - Size Per Thread: 128MB - Thread Count: 16
Threaded I/O Tester
Test: Random Write - Size Per Thread: 128MB - Thread Count: 16
Phoronix Test Suite v10.8.5