The best replacement for gtx 460 is gtx 560.

The best alternatives to gtx 460 are rated as following:
★★★★★  gtx 560
★★★  gtx 650
★★★  470
★★  gtx 750
★★  gtx 550 ti
★★  5850
★★  gtx 650 ti
★★  6850
★★  gtx 470
★★  gtx 750 ti
★★  465
★★  7770
★★  gtx 465
★★  ati
★  gtx 550
★  gt 640
★  gtx 560 ti
★  r7 260x
★  hd 5770
★  550 ti
★  5770
★  gtx 260
★  560
  gx2
  550ti
  gts
  hd 6850
  gtx 460 se
  sli 6850
  hd 5850
  gt 630
  gts 450
  gtx 285
  duel 6850

Your alternative for gtx 460 is not listed? Suggest!
Speaking about gtx 460, one probably shouldn't forget about core 2 duo.

Other search terms related to gtx 460 and their ratings are:
★★★★★ core 2 duo
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