NVIDIA is going ahead with the launch schedule of the GeForce GTS 200 series, that consist of products based on the current-generation G92 GPU. It is known that the GTS 240 and GTS 250 are re-branded 9800 GT and 9800 GTX+ respectively. The 9800 GTX+ SKU will officially be renamed GTS 250 on March 3. One can expect NVIDIA partners to come up with cheaper SKUs that fit into the US $ 130 range, lower than the current $150 range 9800 GTX+ and ATI Radeon HD 4850 compete in.
The GTS 240 on the other hand, will be introduced soon with a newer price-range of around $100, lower than the $120 mark the 9800 GT revolves around. This should make it more competitive against the Radeon HD 4830, which is currently winning in the price/performance figure. Additionally, the company is preparing a GeForce 9800 GT Green Edition, which carries forward the design methodology of the 9600 GT Green Edition: lowering the GPU voltage and slightly reducing the clock speeds. It is expected to carry clock speeds of 550/1375/900 MHz (core/shader/memory) against the reference 9800 GT specifications of 600/1500/900 MHz. The new SKU might be priced at a premium over the GTS 240, at around $ 120.
Source: VR-Zone 1, 2