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 1100T |
39.484 |
   |
| AMD Phenom II X6 1090T |
40.14 |
|
| AMD Phenom II X6 1075T |
41.62 |
|
 AMD Phenom II X4 975 Black Edition |
39.718 |
   |
| AMD Phenom II X4 970 Black Edition |
40.778 |
|
| AMD Phenom II X4 965 Black Edition |
42.073 |
|
| AMD Phenom II X4 910e |
54.616 |
|
| AMD Phenom II X4 840 |
44.525 |
|
| AMD Phenom II X2 555 Black Edition |
46.91 |
|
| AMD Athlon II X4 645 |
46.256 |
|
| 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 1100T |
19.687 |
|
| AMD Phenom II X6 1090T |
20.282 |
|
| AMD Phenom II X6 1075T |
20.826 |
|
| AMD Phenom II X4 975 Black Edition |
20.436 |
|
| AMD Phenom II X4 970 Black Edition |
20.718 |
|
| AMD Phenom II X4 965 Black Edition |
21.684 |
|
| AMD Phenom II X4 910e |
28.267 |
|
| AMD Phenom II X4 840 |
22.9 |
|
| AMD Phenom II X2 555 Black Edition |
22.244 |
|
| AMD Athlon II X4 645 |
23.243 |
|
| 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 1100T |
13.541 |
|
| AMD Phenom II X6 1090T |
13.79 |
|
| AMD Phenom II X6 1075T |
14.133 |
|
| AMD Phenom II X4 975 Black Edition |
13.853 |
|
| AMD Phenom II X4 970 Black Edition |
14.229 |
|
| AMD Phenom II X4 965 Black Edition |
14.633 |
|
| AMD Phenom II X4 910e |
19.11 |
|
| AMD Phenom II X4 840 |
15.539 |
|
| AMD Athlon II X4 645 |
15.849 |
|
| 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 1100T |
11.325 |
|
| AMD Phenom II X6 1090T |
11.75 |
|
| AMD Phenom II X6 1075T |
12.607 |
|
| AMD Phenom II X4 975 Black Edition |
10.842 |
|
| AMD Phenom II X4 970 Black Edition |
11.217 |
|
| AMD Phenom II X4 965 Black Edition |
11.404 |
|
| AMD Phenom II X4 910e |
14.711 |
|
| AMD Phenom II X4 840 |
12.585 |
|
| AMD Athlon II X4 645 |
12.573 |
|
| AMD Athlon II X4 635 |
13.26 |
|
| AMD Athlon II X4 620 |
14.743 |
|
| 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 1100T |
8.253 |
|
| AMD Phenom II X6 1090T |
8.547 |
|
| AMD Phenom II X6 1075T |
8.985 |
|
| AMD Phenom II X4 975 Black Edition |
10.842 |
|
| AMD Phenom II X4 970 Black Edition |
11.217 |
|
| AMD Phenom II X4 965 Black Edition |
11.404 |
|
| AMD Phenom II X4 910e |
14.711 |
|
| AMD Phenom II X4 840 |
12.585 |
|
| AMD Phenom II X2 555 Black Edition |
22.244 |
|
| AMD Athlon II X4 645 |
12.573 |
|
| 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 fills in where SuperPi leaves off by allowing
PCSTATS to stress one core, or any number of cores up to the total amount in the
processor. The most important result set to pay attention to is the final block
of results for all threads.
With all four threads unleashed, the 3.6GHz AMD Phenom
II X4 975 BE system out performs the Intel Core i5 750 with a time of 10.842.
The 975BE is a hair slower than the eight-threaded Core i7 920 which posts a
result of 9.766 seconds.
Next up, ScienceMark 2.3 and Cinebench R10...
wPrime 2.0
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