Synthetic Performance
The SPECviewperf v10 tests seem to rely more on clock speed than the number of cores available. As a result, the Phenom II X6 1100T is slower than the Phenom II X4 in this test as the latter has a 100MHz advantage. This is a disappointing result considering that Turbo Core didn't help the Phenom II X6 processors.
The Povray v3.6 benchmark heavily favors the Phenom II X6 1100T, allowing it to provide the best result we have seen in this test from a processor running at stock speeds. The Phenom II X6 1100T edged out both the Core i7 975 EE and Core i7 980 XE processors.
Interestingly, the Phenom II X6 1055T performed much slower than we expected, despite its clock speed increase, but it was a fraction faster than the Core i5 750.
The CINEBENCH R11.5 benchmark tests both CPU and GPU performance, and the Phenom II X6 1100T outperformed the Phenom II X4 965 in both. Even the much lower clocked Phenom II X6 1055T beat the 3.4GHz Phenom II X4 965 in CPU performance, though it was slower than the Core i7 930.
Phenom II processors in general tend to struggle with WinRAR benchmarks. While the Phenom II X6 1100T was 17% faster than the Phenom II X4 965, it was only able to roughly match the Core i5 750.