Your requirements and the state of the market will determine the outcome. According to the information available to us, the RTX 590 and RTX 580 are believed to be slated for release in the first quarter of next year, with the mid-range RTX 570 and RTX 560 GPUs likely to be quite far off. AMD's RDNA 4 cards are expected to arrive this autumn and may offer performance somewhere in the range of $500 for the RX 7900 XT. There is no clarity on Intel's Campaign cards owing to their financial turmoil. If you have an instant need for a GPU, have come across a decent deal translating into current lows for this generation of cards, then it is worth buying. If, however, you can wait, future launches may provide better performance or lower the current models’ prices.