The AMD Phenom II X6 1100T was the last, in a long line of Phenom II X6's. The series went 1045T, 1055T, 1065T, 1075T, 1090T and finally 1100T. Each successive release was clocked slightly higher ending with the 1100T which had a base/turbo clock speed of 3.3/3.7 GHz. The X6 has six processing cores and demonstrates very good multi-core performance but it is less able to handle single and dual core workloads, which is what the majority of consumer desktop computing requires. The X6 series were good overclockers with the ability to boost stock clocks by around 20%. Comparing the 1100T to the similarly priced i5-2400 shows that Intel's mid-range Sandy Bridge processor, which was released just a month after the 1100T, was around 8% faster for single and dual core workloads but slower by a staggering 30% for multi-core workloads. [Mar '14CPUPro]
The AMD FX-8150 is the earliest eight core variant in AMD's flagship FX series. The FX-8150 was released in October 2011 and at that time it superseded the Phenom 1100T. Comparing the 1100T and FX-8150 shows that the newer FX-8150 has roughly the same single and dual core speed but, thanks to its extra two cores, pulled ahead of its predecessor by 15% in multi-core tests. The performance improvements over the 1100T are accompanied by an improved manufacturing process which reduced lithography from 45 to 32 nanometres; consequently both processors have the same maximum TDP of 125 Watts. Thanks to its eight cores the FX-8150 has strong multi-core performance but its single-core core speeds are still relatively weak compared to similarly priced Intel chips. [Mar '14CPUPro]
We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]
Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.