AMD Radeon HD 4850 X2
The AMD Radeon HD 4850 X2 is a graphics card released on November 7, 2008. It has 1 GB of GDDR3 memory, a boost clock of 625 MHz and a 250 W board power rating. It scores 1,132 in the PassMark G3D benchmark. It supports DirectX 10.1, OpenGL 3.3 and OpenCL 1.0.
Depth: 28 recorded fields
Specification data last verified October 1, 2026 against PassMark Videocard Benchmark and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 5 of 10 tracked specifications recorded.
Performance
The AMD Radeon HD 4850 X2 scores 1,132 in the PassMark G3D benchmark, higher than 56.9% of the 2,658 GPUs benchmarked (PassMark rank #1,319), measured across 39 submitted results. Its PassMark G2D score is 542.
As stated by PassMark
PassMark's own listing for the AMD Radeon HD 4850 X2 states the PCIe 2.0 x16 interface, up to 1 GB of memory, a core clock of 625 MHz, DirectX 10.1 and OpenGL 3.3, first benchmarked on 2012-03-11. These are PassMark's figures, shown separately from the specification tables above.
Graphics processor
The AMD Radeon HD 4850 X2 uses the R700 (2xRV770 PRO) graphics processor.
Clock speeds
The AMD Radeon HD 4850 X2 runs at a base clock of 625 MHz.
Memory
The AMD Radeon HD 4850 X2 is equipped with 1 GB of GDDR3 memory.
Board and power
The AMD Radeon HD 4850 X2 has a board power rating of 250 W and it connects over PCIe 2.0 x16.
Market
The AMD Radeon HD 4850 X2 was released on November 7, 2008 and launched at a price of $339.
Benchmarks
Graphics and compute APIs
The AMD Radeon HD 4850 X2 supports DirectX 10.1, OpenGL 3.3 and OpenCL 1.0.
CUDA is an NVIDIA technology and does not apply to the AMD Radeon HD 4850 X2. Feex has no recorded Vulkan version for the AMD Radeon HD 4850 X2.
Naming and aliases
The AMD Radeon HD 4850 X2 is also known by other names: PassMark also lists it as ATI Radeon HD 4850 X2.
Frequently asked questions
How much VRAM does the AMD Radeon HD 4850 X2 have?
The AMD Radeon HD 4850 X2 has 1 GB of GDDR3 memory.
How much power does the AMD Radeon HD 4850 X2 use and what power supply does it need?
The AMD Radeon HD 4850 X2 has a board power rating of 250 W.
How fast is the AMD Radeon HD 4850 X2?
The AMD Radeon HD 4850 X2 scores 1,132 in the PassMark G3D benchmark, higher than 56.9% of the 2,658 GPUs benchmarked. Its PassMark rank is #1,319.
What bus interface does the AMD Radeon HD 4850 X2 use?
The AMD Radeon HD 4850 X2 connects over PCIe 2.0 x16.
When was the AMD Radeon HD 4850 X2 released and how much did it cost at launch?
The AMD Radeon HD 4850 X2 was released on November 7, 2008 and launched at a price of $339.