AMD Overdrive 3.0 and Dragon Platform
AMD's Black Edition processors meet the needs
of computer enthusiasts who have the knowledge and the skill to take a
$300 processor and make it perform like a $600 chip. These are the overclocking
guru's who can navigate through a BIOS menu with their eyes closed and use
liquid nitrogen to keep the processor humming away at -196C. These are
overclockers. AMD's gift to these brave
performance daredevils is Overdrive 3.0, an updated version of its existing performance
tuning and software overclocking suite that is designed to give unprecedented levels of control over
system clocks and settings.
When compared to similar solutions from Intel and NVIDIA, AMD Overdrive 3.0
has far more comprehensive controls, adjustments and options. It's a tool with
enough depth that even advanced overclockers will want to use it, negating the
need to trek through the BIOS and continually restart the system. This latest revision brings a few new features to the table,
including Black Edition Memory Profiles (B.E.M.P) which
makes it easier to maximize memory performance, and Smart
Profiles which can adjust processor load for
greater efficiency in gaming.
control panel in AMD Overdrive 3.0. Fingertip overclocking of AMD
processors, system memory and ATI videocards from one control
Simple controls that automate
most of the overclocking process are available to novice users; a basic
slider will adjust performance from within the GUI. Using the slider, it
was possible to increase the stock 16x multiplier of the Phenom II X4 955 Black
Edition processor up to 17x, which essentially overclocked the processor from
3.2GHz up to 3.4GHz.
While this feature is made deliberately simplistic, it does provide a
lot of feedback and information on which settings are being changed in order to
improve performance. It's a good way to learn more about how your CPU and
chipset function and what exactly goes on inside your system.
For advanced overclockers there are a lot more options to play with. AMD's
Overdrive software can monitor voltages, CPU clock speeds, CPU multipliers, front
side bus speeds, memory frequencies, PCI Express frequencies and even the core
speed of the IGP and Sideport memory. There's also a separate page dedicated to
memory that lists pretty much every timing option available. It would be nice to
see some more built-in recommendations and ToolTips of what each RAM setting
does, but as it stands the included help file at least gives a description of
A built in benchmarking utility tests Integer Computation, Floating Point
Computation, Memory Speed and Cache Speed, and then returns individual scores as
well as a synthesized result from all four tests combined. It's not quite as
exhaustive as what's possible with PCMark Vantage or SiSoft Sandra, but it
provides a good indication of how much faster your system has become after
The stability test stresses the CPU to see if there are any potential
problems caused by overclocking too far. It's possible to test Floating Point
Unit and Integer calculation separately for individual cores, as well as doing
overall calculation tests and checking system registers. Once the system is
being stress-tested, voltage draw and temperatures can be monitored using the
status monitor window, which can read temperatures, processor utilization, as
well as voltages for the separate cores of the processor.
AMD Overdrive - Smart Profiles
are a dynamic load balancing and overclocking tool built into the AMD Overdrive application.
When the Overdrive software detects that a game has been launched, it can optimize
the Phenom II X4 955 Black Edition processor to utilize an appropriate amount
of processor cores for that game profile.
Smart Profiles settings for 3DMark
In certain games that only take advantage of two
processing threads, the Overdrive utility will underclock the two unutilized
processor cores, and increase the frequency of the two cores the game is using.
This entire process is done automatically, so the user doesn't have to worry
about turning profiles on or off before gaming - although profiles must exist
beforehand for the game in question.
PCSTATS testing, the Smart Profiles were able to create some gains using the
bundled profiles for 3Dmark06 and Crysis, in the range of about 3% to 5%. It's
also possible to create custom profiles for any other software application you
select, and for owners of Black Edition CPUs the individual core multipliers can
be adjusted to set faster speeds for active cores, and lower speeds of the
inactive cores, which will increase performance.
Contents of Article: AMD Phenom II X4 955 Black Edition
AMD Phenom II X4 955 Black Edition 3.2 GHz Socket AM3 Processor Review
— AMD Overdrive 3.0 and Dragon Platform
AMD Overdrive 3.0 - Black Edition Memory Profiles (BEMP)
Overclocking an Unlocked 45nm Phenom II X4
Power Consumption Tests, Test System Specs
System Benchmarks: SYSMark 2007, PCMark Vantage
Synthetic Benchmarks: Office Productivity, SiSoft Sandra
Calculation Benchmarks: Super Pi, wPrime2.0, ScienceMark2, WinRAR
Rendering Benchmarks: Cinebench R10, Bibble 5
Rendering Benchmarks: POV-Ray, 3.7, SPECviewPerf 10
Gaming Benchmarks: 3DMark Vantage, 3DMark 06
Gaming Benchmarks: Crysis, FEAR
A Timely Refresh?
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