MADBOXPC.COM claims to have some pictures and specs for AMD's upcoming Radeon HD 3450, 3470 and 3650 graphics cards. The HD 3450, pictured below on the left, uses the RV620 core manufactured using a 55nm process. It will have a core clock of 525MHz with 256MB of 64-bit DDR2 memory running at 800MHz DDR, and apparently it will also feature a DisplayPort output - the price is expected to be around $50. The HD 3470, shown in the middle, features the same RV620 core, although it is expected to run at above 600MHz and have 512MB of 64-bit GDDR3 memory running at 1000MHz DDR, with a price tag of around $60. Finally, the HD 3650, which is shown below on the right, is equipped with the RV635 core, which is also built using a 55nm process, and will run at 800MHz on the XT version and 600MHz on the Pro version. The card is expected to have 256-512MB of 128-bit GDDR3 memory running at 2GHz DDR, and will sell for about $100. Interestingly, there is no mention of DisplayPort despite earlier reports that it will feature on the card, so it may only be used on certain versions.

If everything goes by plan, in January next year AMD's R680 GPU which consists of two 55nm processor cores, can make its debut. Although not confirmed the R680 will consist of two RV670 GPU cores on the same board, at least according to the specs given. The company also made quick mention of the RV620 and RV635 GPU cores. These cores are nearly identical to the previous RV610 and RV630 processors, but will be produced on the 55nm node instead. As mentioned, all three of AMD's new GPUs are scheduled to launch next month.

According to benchmarks which technology site Expreview claims to have carried out, ATI/AMD's new RV620 core could outperform the HD 2400 Pro by as much as 35% despite the two having the same core frequency. On the rather unusual test rig, which featured an Intel Celeron processor, the HD 2400 scored 1123 points in 3DMark06, with the upcoming RV620 scoring 1514 points. If these benchmarks are real, this would suggest that the architecture on the RV620 chip has been significantly improved over its predecessor, although bear in mind that 3DMark scores are by no means conclusive. The RV620 is expected to be named as the Radeon HD 3400 graphics card when it is released to consumers, which is planned to replace the current Radeon HD 2400 cards.

While the current RV670 chips are selling like hotcakes, AMD is working on putting out mid-range and low-end parts for those market segments. The successor to the HD 2600 series, according to graphics card manufacturers, will be called the HD 3600 series (big surprise). The 3600 series will come in two versions, an XT model and a Pro model. The XT will be clocked at 800MHz, and the Pro will be clocked at 600MHz. Both will be attached to 128-bit VRAM, which will run at an unknown clock speed. The Pro will have GDDR2, while the XT will have GDDR3. Both will support DirectX10.1, and the micro-architecture itself is codenamed "RV635". The RV635 should be launched with the RV620, the successor to the HD 2400 series. The RV620 should be dubbed the HD 3400 series.

VR-Zone has learned that the G98 is planned to replace the G86 (8400 GS) as a low-end GPU. The G98 supports PCIe 2.0 and will have 256MB of 2.5ns GDDR2 memory clocked at 800MHz on a 64-bit memory bus. Its performance is expected to be between the G84 and G86 and will compete against the ATI RV620.