Correct, 4k is very modern by these standards. But then I'm old, so perhaps it's all about perspective.
Back in the days when computers had 8MB of RAM to handle all that MS-DOS and Windows 3.1 goodness, we were still in the territory of VGA [0], and SVGA [1] territory, and the graphics cards (sorry, integrated graphics on the motherboard?! You're living in the future there, that's years away!), had their own RAM to support those resolutions and colour depths.
Of course, this is all for PCs. By the mid-1990s you could get a SPARCstation 5 [2] with a 24" Sun-branded Sony Trinitron monitor that was rather more capable.
[0] Maxed out at 640 x 480 in 16-colour from an 18-bit colour gamut
[1] The "S" is for Super: 1280 x 1024 with 256 colours!