ATi goes after nVidia's 7950 GX2

Canadian-based ATi has updated its high-end graphics card range with the launch of the X1950 XTX GPU. This usurps the X1900 XTX as the fastest in ATi’s portfolio and targets nVidia’s current high-end GPU, the 7950 GX2

  • E-Mail
By  Jason Saundalkar Published  September 3, 2006

Canadian-based ATi has updated its high-end graphics card range with the launch of the X1950 XTX GPU. This usurps the X1900 XTX as the fastest in ATi’s portfolio and targets nVidia’s current high-end GPU, the 7950 GX2. The GPU, also known as the R580+, is similar to the R580 used by the X1900 series in that the R580+ is produced using a 90-nm manufacturing process and runs at a clock speed of 650MHz. The X1900 XTX runs at exactly the same core frequency. The X1950 XTX, like its predecessor, also offers 48-pixel shaders and eight vertex shaders, responsible for adding textures and effects to graphics. Where the two GPUs differ however is with regards their memory support. The X1950 XTX offers memory support for GDDR2, GDDR3 and, most importantly, GDDR4. Compared to GDDR3, which the older GPU used, GDDR4 can run at much higher clock speeds. ATi’s standard specifications for X1950 XTX cards recommend the 512Mbytes of GDDR4 memory run at 1GHz. As this is double date rate memory, which runs at twice standard speed, this effectively means the memory is running at 2GHz. The X1900 XTX by comparison had its GDDR3 running at 1.55GHz. Besides this memory difference, ATi also employs a new cooling system for the X1950 XTX, which the company claims is far more silent than the outgoing model. X1950-based cards also support ATi’s multi-GPU technology – CrossFire – which allows users to run two like cards in parallel with a compatible motherboard. Unlike the X1900 series however, X1950 CrossFire master cards will now run at the same core and memory speeds as the XTX models. The X1950 series is the last generation of ATi cards to require master/slave configurations as ATi’s next GPU series, the R600, will allow users to pair up any two identical cards much like nVidia’s SLI approach. Manufacturers such as Connect3D and Sapphire are already shipping cards based on the new X1950 XTX GPU and these are expected to be available in stores across the region in the coming weeks.

Add a Comment

Your display name This field is mandatory

Your e-mail address This field is mandatory (Your e-mail address won't be published)

Security code