ATI Radeon HD 4870 Mac Edition videocard review

Radeon HD 4870 Mac Edition videocard released by ATI; release date: 6 January 2009. The videocard is designed for desktop-computers and based on TeraScale microarchitecture codenamed RV770.

Core clock speed - 750 MHz. Texture fill rate - 30 GTexel / s. Pipelines - 800. Floating-point performance - 1,200.0 gflops. Manufacturing process technology - 55 nm. Transistors count - 956 million. Power consumption (TDP) - 150 Watt.

Memory type: GDDR5. Maximum RAM amount - 512 MB. Memory bus width - 256 Bit. Memory clock speed - 3400 MHz. Memory bandwidth - 108.8 GB / s.

Specifications (specs)

Essentials
Architecture	TeraScale
Code name	RV770
Launch date	6 January 2009
Place in performance rating	not rated
Type	Desktop
Technical info
Core clock speed	750 MHz
Floating-point performance	1,200.0 gflops
Manufacturing process technology	55 nm
Pipelines	800
Texture fill rate	30 GTexel / s
Thermal Design Power (TDP)	150 Watt
Transistor count	956 million

Video outputs and ports
Display Connectors	1x DVI, 1x mini-DisplayPort
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16
Length	250 mm
Supplementary power connectors	2x 6-pin
API support
DirectX	10.1
OpenGL	3.3
Memory
Maximum RAM amount	512 MB
Memory bandwidth	108.8 GB / s
Memory bus width	256 Bit
Memory clock speed	3400 MHz
Memory type	GDDR5