wPrime 2.0	Source: WPrime

wPrime uses a recursive call of Newton's method for estimating functions, with f(x)=x²-k, where k is the number we're sqrting, until Sgn(f(x)/f'(x)) does not equal that of the previous iteration, starting with an estimation of k/2. It then uses an iterative calling of the estimation method a set amount of times to increase the accuracy of the results. It then confirms that n(k)²=k to ensure the calculation was correct. It repeats this for all numbers from 1 to the requested maximum.

Lower calculation times are better. wPrime is multi-threaded.

wPrime 2.0 32 Million Digits (1 thread): (sec) sec Ranking Intel Core i7 920 50.672 Intel Core i5 750 48.844 Intel Core 2 Duo E8400 53.93 AMD Phenom II X6 1090T 40.14 AMD Phenom II X6 1090T (TurboCore OFF) 45.723 AMD Phenom II X4 965 Black Edition (125W) 42.073 AMD Phenom II X4 910e 54.616 AMD Phenom II X2 555 Black Edition 46.91 AMD Athlon II X4 635 50.84 AMD Athlon II X4 620 54.509 AMD Athlon II X3 435 50.607 AMD Athlon II X2 240e 51.636 32 Million Digits (2 thread): (sec) sec Ranking Intel Core i7 920 25.531 Intel Core i5 750 24.571 Intel Core 2 Duo E8400 27.05 AMD Phenom II X6 1090T 20.282 AMD Phenom II X6 1090T (TurboCore OFF) 22.995 AMD Phenom II X4 965 Black Edition (125W) 21.684 AMD Phenom II X4 910e 28.267 AMD Phenom II X2 555 Black Edition 22.244 AMD Athlon II X4 635 25.022 AMD Athlon II X4 620 28.546 AMD Athlon II X3 435 25.163 AMD Athlon II X2 240e 26.707 32 Million Digits (3 thread): (sec) sec Ranking Intel Core i7 920 16.984 Intel Core i5 750 16.629 AMD Phenom II X6 1090T 13.79 AMD Phenom II X6 1090T (TurboCore OFF) 15.554 AMD Phenom II X4 965 Black Edition (125W) 14.633 AMD Phenom II X4 910e 19.11 AMD Athlon II X4 635 17.067 AMD Athlon II X4 620 18.813 AMD Athlon II X3 435 17.487 32 Million Digits (4 thread): (sec) sec Ranking Intel Core i7 920 13.047 Intel Core i5 750 12.698 AMD Phenom II X6 1090T 11.75 AMD Phenom II X6 1090T (TurboCore OFF) 11.885 AMD Phenom II X4 965 Black Edition (125W) 11.404 AMD Phenom II X4 910e 14.711 AMD Athlon II X4 635 13.26 AMD Athlon II X4 620 14.743 32 Million Digits (5 thread): (sec) sec Ranking Intel Core i7 920 12.313 AMD Phenom II X6 1090T 9.717 AMD Phenom II X6 1090T (TurboCore OFF) 9.813 32 Million Digits (6 thread): (sec) sec Ranking Intel Core i7 920 11.219 AMD Phenom II X6 1090T 8.547 AMD Phenom II X6 1090T (TurboCore OFF) 8.86 32 Million Digits (all thread): (sec) sec Ranking Intel Core i7 920 9.766 Intel Core i5 750 12.698 Intel Core 2 Duo E8400 27.05 AMD Phenom II X6 1090T 8.547 AMD Phenom II X6 1090T (TurboCore OFF) 8.86 AMD Phenom II X4 965 Black Edition (125W) 11.404 AMD Phenom II X4 910e 14.711 AMD Phenom II X2 555 Black Edition 22.244 AMD Athlon II X4 635 13.26 AMD Athlon II X4 620 14.743 AMD Athlon II X3 435 17.487 AMD Athlon II X2 240e 26.707

wPrime is a multi-threaded benchmark, and even better it can be loaded up thread-by-thread, so we can see how well TurboCore scales on the AMD Phenom II X6 1090T.

With one, two and three cores loaded, TurboCore allows the AMD Phenom II X6 1090T to calculate prime numbers about 12% faster, almost directly equal to TurboCore's 12% increase in clockspeeds. As the fourth thread is loaded up the entire processor reverts to its native speed of 3.2GHz across all six cores. TurboCore's performance boost shrinks to around 2% as this happens.

Between Turbocore and having six native cores, AMD is finally able to field a processor that can compete with and beat Intel's Core i7 920 processor, even when both processors are scaled to their maximum core/thread processing capabilities.