ATI Radeon HD 5870 hits the rumour mill

Graphics

Published: Wednesday 29th April, 2009 | Author: Parm Mann
Companies: AMD (All AMD content), ATi Technologies (All ATi Technologies content)

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Now that ATI has established a 40nm manufacturing process with its Radeon HD 4770, it was only a matter of time before the rumour mill began to churn out details of other upcoming 40nm parts.

Today, the attention's turning to potential RV870-based parts. According to German site hardware-infos.com, ATI's RV770 successor will arrive as soon as July '09 in the form of the Radeon HD 5870 and the dual-GPU Radeon HD 5870 X2.

It is, of course, entirely speculation at this moment in time. However, should the report be believed, the products will line up with the following specifications:

Graphics cards	NVIDIA GeForce GTX 295 1,792MB	NVIDIA GeForce GTX 285 1,024MB	NVIDIA GeForce GTX 280 1,024MB	NVIDIA GeForce GTX 275 896MB	NVIDIA GeForce GTX 260 896MB	ATI Radeon HD 5870 X2 2,048MB*	ATI Radeon HD 5870 1,024MB*	AMD Radeon HD 4870 X2 2,048MB	AMD Radeon HD 4850 X2 2,048MB	AMD Radeon HD 4890 1,024MB	AMD Radeon HD 4870 512MB	AMD Radeon HD 4850 512MB
PCIe	PCIe 2.0
GPU(s) clock	576MHz	648MHz	602MHz	633MHz	576MHz	950MHz	900MHz	750MHz	625MHz	850MHz	750MHz	625MHz
Shader clock	1,242MHz	1,476MHz	1,296MHz	1,404MHz	1,242MHz	950MHz	900MHz	750MHz	625MHz	850MHz	750MHz	625MHz
Memory clock (effective)	1,998MHz	2,484MHz	2,214MHz	2,322MHz	1,998MHz	4,600MHz	4,400MHz	3,600MHz	1,986MHz	3,900MHz	3,600MHz	1,986MHz
Memory interface and size	448-bit (per GPU), 1,792MB, GDDR3	512-bit, 1,024MB, GDDR3	512-bit, 1,024MB, GDDR3	448-bit, 896MB, GDDR3	448-bit, 896MB, GDDR3	512-bit (2x 256-bit), 2,048MB, GDDR5	256-bit, 1,024MB, GDDR5	512-bit (2x 256-bit), 2,048MB, GDDR5	512-bit (2x 256-bit), 2,048MB, GDDR3	256-bit, 1,024MB, GDDR5	256-bit, 512MB, GDDR5	256-bit, 512MB, GDDR3
Manufacturing process	TSMC, 55nm	TSMC, 55nm	TSMC, 65nm	TSMC, 55nm	TSMC, 65nm	TSMC, 40nm	TSMC, 40nm	TSMC, 55nm	TSMC, 55nm	TSMC, 55nm	TSMC, 55nm	TSMC, 55nm
DirectX/ Shader Model	DX10, 4.0	DX10, 4.0	DX10, 4.0	DX10, 4.0	DX10, 4.0	DX11, 5.0	DX11, 5.0	DX10.1, 4.1	DX10.1, 4.1	DX10.1, 4.1	DX10.1, 4.1	DX10.1, 4.1
Vertex, fragment, geometry shading (shared)	480 FP32 scalar ALUs, MADD dual-issue + MUL (unified)	240 FP32 scalar ALUs, MADD dual-issue + MUL (unified)	240 FP32 scalar ALUs, MADD dual-issue + MUL (unified)	240 FP32 scalar ALUs, MADD dual-issue + MUL (unified)	216 FP32 scalar ALUs, MADD dual-issue + MUL (unified)	2,400 FP32 scalar ALUs, MADD dual-issue (unified)	1,200 FP32 scalar ALUs, MADD dual-issue (unified)	1,600 FP32 scalar ALUs, MADD dual-issue (unified)	1,600 FP32 scalar ALUs, MADD dual-issue (unified)	800 FP32 scalar ALUs, MADD dual-issue (unified)	800 FP32 scalar ALUs, MADD dual-issue (unified)	800 FP32 scalar ALUs, MADD dual-issue (unified)
Data sampling and filtering	160ppc address and 160ppc bilinear INT8/80ppc FP16 filtering, max 16xAF	80ppc address and 80ppc bilinear INT8/40ppc FP16 filtering, max 16xAF	80ppc address and 80ppc bilinear INT8/40ppc FP16 filtering, max 16xAF	72ppc address and 72ppc bilinear INT8/36ppc FP16 filtering, max 16xAF	72ppc address and 72ppc bilinear INT8/36ppc FP16 filtering, max 16xAF	192ppc address and 192ppc bilinear INT8/96ppc FP16 filtering, max 16xAF	96ppc address and 96ppc bilinear INT8/48ppc FP16 filtering, max 16xAF	80ppc address and 80ppc bilinear INT8/40ppc FP16 filtering, max 16xAF	80ppc address and 80ppc bilinear INT8/40ppc FP16 filtering, max 16xAF	40ppc address and 40ppc bilinear INT8/20ppc FP16 filtering, max 16xAF	40ppc address and 40ppc bilinear INT8/20ppc FP16 filtering, max 16xAF	40ppc address and 40ppc bilinear INT8/ 20ppc FP16 filtering, max 16xAF
ROPs	56	32	32	28	28	64	32	32	32	16	16	16
Peak GFLOPS	1,788	1,063	933	1,011	805	4,560	2,160	2,400	2,000	1,360	1,200	1,000
Peak fillrate Gpixels/s	32.256	20.736	19.264	17.724	16.128	60.8	28.8	24	20	13.6	12	10
Peak Gtexel/s (bilinear)	92.2	51.84	48.16	45.576	41.472	91.2	86.4	60	50	34	30	25
Peak Gtexel/s (FP16, bilinear)	46.1	25.92	24.09	22.788	20.736	45.6	43.2	30	25	17	15	12.5
*rumoured product and specification

The numbers are anything but confirmed, but we could be looking at 4,560 GFLOPS from the Radeon HD 5870 X2 - almost double that of the Radeon HD 4870 X2.

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