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SuperPi and wPrime SuperPi is a single threaded benchmark that simply calculates digits out to a specific number of places and times how long it takes. For this, we used the XS mod 1.5 version, since this is most common among overclockers. According to the wPrime website, wprime does the following:
"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. "
wPrime is essentially calculating prime numbers and then timing how long it takes. For this, we are using version 2.00. In both cases, times are in seconds, and lower
numbers are better.
Just like we found in the X4 940 review, we find that the Intel CPUs completely own this test, however the X3 720 puts in a decent showing, clocking in at 18.766 seconds at its best.
wPrime, on the other hand, belongs to AMD. Both the 720 and the 810 both do a good job of torching their respective competition. The X4 810 is within a spitting distance of both the x3360 and the X4 940. Not bad considering how much cheaper it is than both.
The 1024M instance of wPrime tells a similar story, proving the potential value of both chips, and again, the overclocked X4 810 is within 10% of the top end chips.
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