Categories
View

More than 100 GFlops under PowerFractal!

By cliveatfive. Original by Lionel - 02/07/2008 17:09:13 CEST - Category: Overclock
Without a doubt, we've continued to play with our overclocked Mac Pro. Alas, the heat yesterday has not served us well, and we were unable to repeat our feat at a stable 3.7 GHz. We've become content with 3.6 GHz (for an October 3rd CPU, with a 2 GHz default clock speed) is a 11% overclock the CPU. We still made some tests on this frequency.
Before we comment, we remind you that at least take a stopwatch in hand to achieve them, you must restart the machine, which is unfortunately impossible with the 2nd gen Mac Pro, which refuses to do so once overclocked. Indeed, this only helps to restart the clock to run at a normal speed. Before restarting, it is also accelerated, thus distorting the results of using this software clock to calculate the performance index.
Thus, under PowerFractal, we managed to cross the 100 GFlops barrier, reaching precisely 101019.6 Mflops (against 88880 at 3.2 GHz).
We were also impressed with Cinebench R10.
-- Rendering with a processor rose from 3693 to 4171 BC-CPU
-- Rendering with 8 processors rose from 21418 to 24319 CB-CPU
-- More strangely, the video card has also benefited from 6816 to 7741 CB_GFX
In all these cases, there is much increased performance to be had while overclocking, or just under 12% in this case. This is consistent knowing that all frequencies of the machine are boosted, the CPU, one of the RAM and the bus, and probably also the PCI-Express, which would explain the gain in the video card, especially if one considers that the limit is not the card itself, but rather the throughput. If the information arrives and leaves quickly on a GPU that is not at its peak, the performance climbs.
News
Articles
Blog
All Keywords
From
To
Full View
Daily View
List View
Next
Previous
Printer Friendly
Tip a friend
Share this page