We tested the Bulldozer: FX-8150 and three 990FX motherboards on the test bench

test Results

Memory management:

AMD FX-8150 + ASUS Crosshair V Formula (basic) AMD FX-8150 + ASUS Crosshair V Formula (tuning)

AMD FX-8150 + ASUS Sabertooth 990FX AMD FX-8150 + MSI 990FXA-GD80

AMD Phenom II X4 970 BE + ASUS Sabertooth 990FX Intel Core i5-2500K + GIGABYTE Z68X-UD7-B3

Intel Core i7-2600K + GIGABYTE Z68X-UD7-B3 Intel Core i7-980X + GIGABYTE EX58-UD4P

AIDA64 read speed test (read test suite):

AMD FX-8150 + ASUS Crosshair V Formula

AMD FX-8150 + ASUS Sabertooth 990FX

AMD FX-8150 + MSI 990FXA-GD80