AMD Radeon HD 8870M, codenamed “Venus XT”, is a mid-range graphics chip, announced in late Q4 of 2012. It is part of the GCN (Graphics Core Next) generation and is constructed through a 28nm process. Its consists of 640 Radeon cores, 40 texture cores and 16 raster cores.
All of them operate at 720MHz, but the Turbo clock functionality can increase that by a potential 7%, up to 750MHz, based on the laptop’s cooling capacity.
The chip also has a 128bit bus and is available with either GDR3 or GDDR5 memory. AMD Radeon HD 8870M supports DirectX 11.1, Pixel Shader 5.1, OpenCL 1.2, OpenGL 4.2, Zero Core and Power Gating. Memory bandwidth goes up to 144GB/sec.
AMD Radeon HD 8870M (2GB GDDR5) - technical specifications
|Manufacturing Process||28 nm|
|Base frequency||725 MHz|
|Memory Frequency||4500 MHz|
|Memory bandwith||144 GB/sec|
|Date of release||18 December 2012|
|Power consumption||50 W|
|Maximum frequency||775 MHz|
|Memory Capacity||2 GB|
|Memory bus||128 bits|
|Supported technologies||DirectX 11.1, Pixel Shader 5.1, OpenCL 1.2, OpenGL 4.2, Zero Core, Power Gating.|