question about sapphire radeon X1800XT 512MB

[hclarkjr]

the advertised speed for this card is 625 MHZ core and 1500 MHZ memory yet when i checked it with ATI traytools and everest it is showing this -
Field Value
Graphics Processor Properties
Video Adapter ATI Radeon X1800 XT (R520)
GPU Code Name R520
PCI Device 1002 / 7100
Transistors 321 million
Process Technology 90 nm
Die Size 288 mm2
Bus Type PCI Express x16 @ x16
Memory Size 512 MB
GPU Clock 594 MHz (original: 600 MHz)
RAMDAC Clock 400 MHz
Pixel Pipelines 16
TMU Per Pipeline 1
Vertex Shaders 8 (v3.0)
Pixel Shaders 1 (v3.0)
DirectX Hardware Support DirectX v9.0c
Pixel Fillrate 9504 MPixel/s
Texel Fillrate 9504 MTexel/s

Memory Bus Properties
Bus Type GDDR3
Bus Width 256-bit
Real Clock 693 MHz (DDR) (original: 700 MHz)
Effective Clock 1386 MHz
Bandwidth 43.3 GB/s

Graphics Processor Manufacturer
Company Name ATI Technologies Inc.
Product Information http://www.ati.com/products/gamer.html
Driver Download http://www.ati.com/support/driver.html
Driver Update http://driveragent.com?ref=59
i also noticed that overdrive is enabled even after i unchecked the box, is that lowering the speed and how do you disable it if that is what is happening?

 

[JPB]

Arnt those the 2D clocks ? If so...they will go to normal clocks when a game is launched. Then it will run at 3D clocks which is 625/1500

 

[moonboy403]

Originally posted by: x80064
Arnt those the 2D clocks ? If so...they will go to normal clocks when a game is launched. Then it will run at 3D clocks which is 625/1500

 

[hclarkjr]

yes the clocks were generated from 2D desktop with no games running. i did not know the speed went down like that when at desktop.

 

[Bull Dog]

and remember that most tools show actual MHz on the ram not the 'doubled' number. DDR transmits data twice per clock. So if it runs as 500MHz then it transmits data 1000 times per second. So if the card clocks the memory at 750MHz, its transmitting data at 1500