AMD "Oland" Radeon HD 8800 Series Info
Some details, albeit completely unconfirmed, on AMDs upcoming Radeon HD 8800 series have surfaced on the web. The Sea islands HD 8800 series apparently is based on a new silicon codenamed "Oland," which is made using a 28 nm process while packing 3.4 billion transistors all on a 270 mm² die-area.
The Radeon HD 8870 would be clocked at 1050 MHz with 1100 MHz PowerTune Boost frequency; while the HD 8850 is clocked at 925 MHz with 975 MHz boost frequency. The memory of both SKUs is clocked at 6.00 GHz, yielding 192 GB/s memory bandwidth. The chips hence have 256-bit wide memory interfaces. Sources Videocardz and Read2Ch claim there will be two HD 8800 series models which typically is a Pro and XT SKU. The source mentions that the HD 8870 provides up to 75% higher single-precision floating point and up to 60% higher double-precision floating point performance over the the HD 7870. The texture fill-rate should be up by 65%. The Radeon HD 8850 offers similar increases over its predecessor, the HD 7850. Check out the table below.