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Date: October 2nd, 2006
Article by: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: Sapphire
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VIDEOCARD OVERCLOCKING


Overclocking an already overclocked card in most cases can be summed up as an act of futility. The manufacturer has already pushed the card to its' maximum right? Well, not in all cases and today's example is proof positive.


Temperature throughout the testing was never a problem. Even when the card was pressed to its maximum, the cooler was only warm to the touch and not scorching hot like I have seen on some other models. This also could be because the memory modules were not thermally attached to the heatsink and therefore could not transfer the DDR3 heat where it belonged. Even so, it didn't really affect the overclocking much as you will se below.


With that being said, the overclocking result I was able to obtain is as stated below:


Stock Clock Rates: 575Mhz Core / 694Mhz ( 1388 Mhz DDR) Memory

Overclocked Clock Rates: 621Mhz Core / 724.5Mhz (1449Mhz DDR) Memory

Net Overclock: 46Mhz Core / 30.5Mhz (61MHz DDR ) Memory


Overclocking this already overclocked X1300XT was actually quite impressive. As the speed values kept on climbing and staying stable, I was wondering when the ceiling would be found for this tough value based videocard. Overall I was impressed and the overclocking does make a significant difference in testing.

 

BENCHMARKING TESTING SPECIFICATIONS



The PCI Express Videocard Testbed:


Intel P4 3.4Ghz LGA775 Extreme Edition 800FSB CPU Comparison Shop for this item
INTEL D925XCV LGA775 PENTIUM 4 MOTHERBOARD Comparison Shop for this item
1 GIG Mushkin DDR2 PC4200 533Mhz Comparison Shop for this item
Latest Catalyst Drivers
Windows XP Professional SP1 Comparison Shop for this item
2X Maxtor Maxline III SATA 150 Drives in RAID 0 Comparison Shop for this item
Latest Intel Chipset and Peripheral Drivers


PCI Express Videocards Benchmarked Against:



- Sapphire Ultimate X1600 PRO
- Sapphire X1900XTX
- ATI AIW X1800XL
- ATI AIW X800XL
- HIS ICEQ X700PRO


The programs are:


3DMark2001SE v330 Professional (DX8 Synthetic Benchmark)
GLexcess v1.2V (OpenGL Synthetic Benchmark)
Aquamark Preset Benchmark
Doom 3 High Quality Benchmark
3DMark 2005 Professional
3DMark 2006 Professional (New!)


Please keep in mind that results obtained were with driver defaults for testing continuity and are stock configured for image quality rather than speed. With a little driver tweaking, results much higher than seen obtained here could easily be managed.


Testing Methodology


Throughout the testing of this videocard, I will be showing you how this card performed on the system mentioned above using the following programs at 1024x768 and 1280x1024 resolutions at ATI driver defaults (vsync disabled) and also with 6X Antialiasing and 16x Anisotropic Filtering enabled.


All other cards were only tested with no quality settings and only 4X AA enabled in the high quality tests.


Both testing situations will be benchmarked with stock and overclocked settings initialized separately.

 

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