AMD Radeon X1900 GT
The AMD Radeon X1900 GT is a graphics card released on May 5, 2006. It has 256 MB of GDDR3 memory, 38.4 GB/s of memory bandwidth, a boost clock of 575 MHz and a 75 W board power rating. It scores 146 in the PassMark G3D benchmark. It supports DirectX 9.0c and OpenGL 2.1.
Depth: 27 recorded fields
Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 6 of 10 tracked specifications recorded.
Performance
The AMD Radeon X1900 GT scores 146 in the PassMark G3D benchmark, higher than 21.6% of the 2,658 GPUs benchmarked (PassMark rank #2,278), measured across 14 submitted results. Its PassMark G2D score is 409.
As stated by PassMark
PassMark's own listing for the AMD Radeon X1900 GT states the PCI-E x16 interface, up to 256 MB of memory, a core clock of 575 MHz, DirectX 9.0c and OpenGL 2, first benchmarked on 2009-07-31. These are PassMark's figures, shown separately from the specification tables above.
Not to be confused with
This page covers the AMD Radeon X1900 GT specifically. It is a different product from AMD Radeon X1900 GT Rev. 2, which have their own specifications. Check the exact model name before comparing figures.
Graphics processor
The AMD Radeon X1900 GT uses the R580 graphics processor.
Clock speeds
The AMD Radeon X1900 GT runs at a base clock of 575 MHz.
Memory
The AMD Radeon X1900 GT is equipped with 256 MB of GDDR3 memory and delivers 38.4 GB/s of memory bandwidth.
Board and power
The AMD Radeon X1900 GT has a board power rating of 75 W and it connects over PCI-E x16.
Market
The AMD Radeon X1900 GT was released on May 5, 2006.
Benchmarks
Graphics and compute APIs
The AMD Radeon X1900 GT supports DirectX 9.0c and OpenGL 2.1.
CUDA is an NVIDIA technology and does not apply to the AMD Radeon X1900 GT. Feex has no recorded Vulkan version for the AMD Radeon X1900 GT. Feex has no recorded OpenCL version for the AMD Radeon X1900 GT.
Naming and aliases
The AMD Radeon X1900 GT is also known by other names: PassMark also lists it as Radeon X1900 GT and Radeon X1900 GT Secondary.
Frequently asked questions
How much VRAM does the AMD Radeon X1900 GT have?
The AMD Radeon X1900 GT has 256 MB of GDDR3 memory. Its memory bandwidth is 38.4 GB/s.
How much power does the AMD Radeon X1900 GT use and what power supply does it need?
The AMD Radeon X1900 GT has a board power rating of 75 W.
How fast is the AMD Radeon X1900 GT?
The AMD Radeon X1900 GT scores 146 in the PassMark G3D benchmark, higher than 21.6% of the 2,658 GPUs benchmarked. Its PassMark rank is #2,278.
What bus interface does the AMD Radeon X1900 GT use?
The AMD Radeon X1900 GT connects over PCI-E x16.
When was the AMD Radeon X1900 GT released?
The AMD Radeon X1900 GT was released on May 5, 2006.