User:ILoveMyComputer/Sandbox

2

R600 GPU architecture - Product transition

(Single-GPU, highest-end variant only)

	Model	Release date	Family/ Product branding1	Fab Process	Bus interface	Core		Memory					API support (version)			Shader FLOPS performance		Dual-GPU products	Notes5
						Frequency	Config2	Amount	Frequency (DDR/QDR equiv.)3	Bandwidth	Bus type	Bus width	DirectX	OpenGL	OpenCL	SP	DP
tick	R600	May 2007	Radeon HD 2900 series	65 nm	PCIe x16	743 MHz	320(64x5):16:16	512 - 1024 MiB	825 MHz (1650) 1000 MHz (2000)	105.6 GB/s 128.0 GB/s	GDDR3 GDDR4	512-bit	10	2.0/2.1 3.0/3.1	—	475 GFLOPS	—	N
tock	RV670	November 2007	Radeon HD 3800 series	55 nm	PCIe 2.0 x16	775 MHz	320(64x5):16:16	512 - 1024 MiB	900 MHz (1800) 1125 MHz (2250)	57.6 GB/s 72.0 GB/s	GDDR3 GDDR4	256-bit	10.1	2.0/2.1 3.0/3.1	1.0	496 GFLOPS	99.2 GFLOPS	Y (R680)
tick	RV770 RV790	June 2008 April 2009	Radeon HD 4800 series Radeon HD 4890	55 nm	PCIe 2.0 x16	750 MHz 850 MHz	800(160x5):40:16	512 - 1024 MiB 1024 MiB	900 MHz (3600) 975 MHz (3900)	115.2 GB/s 124.8 GB/s	GDDR5	256-bit	10.1	2.0/2.1 3.0/3.1	1.0	1200 GFLOPS	240 GFLOPS	Y (R700) N
tock	RV740	May 2009	Radeon HD 4770	40 nm	PCIe 2.0 x16	750 MHz	640(128x5):32:16	512 MiB	800 MHz	51.2 GB/s	DDR3/GDDR3 GDDR5	256-bit	10.1	2.0/2.1 3.0/3.1	1.0	960 GFLOPS	192 GFLOPS	N
tick	RV870	Q3 2009	?	40 nm	PCIe 2.0 x16						GDDR5	256-bit	11	2.0/2.1 3.0/3.1	1.0			Y (R800)
		2010	?		PCIe 2.0 x16						GDDR5		11
Notes: 1. Names in bracket () indicate temporary name 2. Core config notation: Unified Shaders (Vertex shader/Geometry shader/Pixel shader) : Texture mapping unit : Render Output unit 3. The effective data transfer rate of GDDR5 is quadruple its nominal clock, instead of double as with other DDR memory. 4. The theoretical shader performance in single-precision and double-precision (excluding Radeon HD 2000 series) floating point operations [FLOPSsp and FLOPSdp, GFLOPS] can be estimated by the following: (where shader count is n and core frequency is f measured in GHz) FLOPSsp ≈ 2 × f × n, FLOPSdp ≈ 1/5 × FLOPSsp 5. Denotes future products, not all specifications are available