The eight memory chips strongly suggest a 99% probability that there is a 128-bit memory bus.
DDR or SDRAM – well, just Google the chip markings.
DDR or SDRAM – well, just Google the chip markings.
Incidentally, at similar frequencies, memory based on the older standard may not actually be any slower.
In other words, IF both SDRAM and DDR run at 333 MHz, their bandwidth will be the same.
It’s just that 333 MHz is already the limit for SDRAM, whereas for video DDR, it’s only the very beginning of what’s possible.

https://www.ebay.co.uk/itm/203824829556
If that’s the graphics card you’re looking at, then it’s an excellent choice.

Good idea. I pulled it from the case and its got 8 K4S281632D-TC60 chips, which are 128-bit, 128MB of SDRAM.

Going off the markings on the card above the heat sink, 8860 Ver 310 its a MX420 but it doesn't have the GeForce4 MX420 on the board anywhere.

But going off the part number sticker, its a MX440 which is what Everest says it is. When I got it off eBay I thought it was the MX420, which has the 166MHz memory clock. So the print on the card, and the stickers along with Everest are conflicting. But I think Everest must be getting the memory clock wrong since this isn't DDR.

If it looks like the ebay one, then it is definitely SDRAM based card. Should be called MX 420 because as far as I know, MX440 is always DDR.

Performance wise MX 420 is among the slowest GeForce4 cards (as the name suggests). Not the worst one as 64-bit MX440s often have 266 MHz memory and therefore are even slower. But proper 128-bit MX440 can easily be 50-100% faster.... depending on the game and settings used. FX 5200 (and FX 5500) is pretty similar to MX440 in raw performance. Not much point in upgrading.

I think for PIII 933 GF4 MX is a solid match.

Here is the link https://www.ebay.com/itm/287087761929

The listing was wrong, as it has 8 128-bit memory chips of 16MB for 128MB of memory, and according to the markings its SDR. I didn't think the MX420 came in a 128MB version though. Confusing.

Thanks for the information. Got a lot of free time and want to get this 98 system rocking. This card will be fine I'm sure, anything released after 2002 or so I'd probably be running on my XP system.