Symbolic toolbox speed comparisons on 2010a versus 2012b for Mac OS?

On my Macbook Pro, late 2012 (non-retina) model, Mac OS Ver 10.8.5, 2.6 ghz i7, 8gb ram, I found that the symbolic toolbox may be slightly faster for 2010a than 2012b which I thought was odd since 2010a uses X11. Unfortunately, I do not have the symbolic toolbox for my Windows licenses so I could not compare on my work PC. Anybody else see this?

On 2010a:

 tic, dsolve('x*Dy-y=1', 'x'), toc

ans =

C2*x - 1

Elapsed time is 0.011423 seconds.

On 2012b:

tic, dsolve('x*Dy-y=1', 'x'), toc

ans =

C2*x - 1

Elapsed time is 0.022434 seconds.

[Marc]

And yet, with 'solve', these two versions appear equivalent.

2010a:

tic, [x,y]=solve('x^2+y^2=4','(x-1)^2+(y-1)^2=1'), toc

x =

 7^(1/2)/4 + 5/4
 5/4 - 7^(1/2)/4

y =

 5/4 - 7^(1/2)/4
 7^(1/2)/4 + 5/4

Elapsed time is 0.065465 seconds.

2012b:

tic, [x,y]=solve('x^2+y^2=4','(x-1)^2+(y-1)^2=1'), toc

x =

 7^(1/2)/4 + 5/4
 5/4 - 7^(1/2)/4

y =

 5/4 - 7^(1/2)/4
 7^(1/2)/4 + 5/4

Elapsed time is 0.066874 seconds.