Well, we wouldn't have ads and tracking.
HotWired (Wired's first online venture) sold their first banner ads in 1994.
DoubleClick was founded in 1995.
Neither were limited to 90's hardware:
Web browsers were available for machines like the Amiga, launched in 1985, and today you can find people who have made simple browsers run on 8-bit home computers like the C64.
This was an Amiga 500 with maxed-out RAM (8 MB) and a hard drive.
Ads were certainly very rare in 1993.
The period without ads lasted ~4 years, during which almost nobody used the web, and even fewer used a graphical browser.
Mosaic 0.5 was first released in January '93 (yes, there were other graphical browsers preceding it, like Viola, but none saw broad distribution)
Netscape was first launched in October '94.
By '94 the first banner ads existed.
DoubleClick started selling banner ads in '95.