J. Dzhugashvili writes: As Slashdot noted earlier this week, AMD has a new line of mid-range Radeon GPUs aimed at notebooks. The chips are based on the Graphics Core Next microarchitecture, and they're slated to show up in systems early next year. While the initial report was limited to specification details, the first review of the Radeon HD 8790M is now out, complete with benchmark data from the latest games. The 8790M is about 35% smaller than its 7690M predecessor but offers substantially better gaming performance across the board. Impressively, the new chip has similar power draw as the outgoing model under load, and its idle power consumption is slightly lower. Notebook makers should have no problems making the switch. However, it is worth noting that this new mobile GPU exhibits some of the same frame latency spikes observed on desktop Radeons, including in games that AMD itself has sponsored.