Advanced Micro Devices' first-quarter share gains in the discrete and integrated graphics market came at the expense of rival GPU-maker Nvidia (NSDQ:NVDA), according to a report by industry watcher Mercury Research.

AMD gained 8.2 share points in the discrete graphics market in the first quarter of 2010, lifting the chip maker to a 42.1% overall share of that market. Nvidia lost 8.2 share points during that same period, according to the research firm.
In mobile discrete graphics, AMD climbed to a nearly 50% share of the market. The company gained 9 share points during the first quarter and now has a 49.7% share of the market for discrete graphics processors built for notebook PCs.
AMD also gained 2.8 share points in the overall graphics market, which includes both discrete graphics and the less expensive integrated GPUs made by AMD, Nvidia and integrated graphics market leader Intel.
Nvidia’s share of the overall graphics market dropped by 4.8 share points in the first quarter, according to Mercury Research.
AMD’s first-quarter gains can be attributed to the popularity of its ATI Radeon HD 4800 series and ATI Radeon HD 5000 series of discrete graphics products, as well as the ramping of new technologies like its Eyefinity multi-display support and the new Vision marketing campaign for AMD-based PC hardware platforms, according to the research firm.