- AMD Phenom II X4 975 Black Edition Review – overclocking performance
- AMD Phenom-II X4-975 Black Edition @ Benchmark Reviews
- AMD Phenom-II X4-840 Processor @ Benchmark Reviews
- AMD Phenom II X4 975 BE and Phenom II X4 840 (Socket AM3) CPUs
- AMD Phenom II X4 975BE and 840 CPU Reviews @ Legit Reviews
- AMD Phenom II X4 840 & X4 975 Black Edition Processors Review @ Hardware Canucks
- REVIEW: AMD Phenom II X4 975 and 840 @ PureOverclock
- AMD Phenom II X4 975 & 840 Review @ OCC
- AMD Phenom II X4 975BE CPU and ECS A890GXM-A2 Review @ HardwareHeaven.com
- Phenom II X4 975 Black Edition review