I can only find info out on the earlier model from the late 80s, is written 10241 plus on the card, but the FCC ID uses the letter I.
Would be interested to know how this card would stack up against the likes of an et4000.
The "I" is for ISA, so is probably correct (think: LAPC-I)
What's under the sticker? I can find a lot on the regular 1024I, which has a Headland/G2 GC208 chip. This 'plus' card was supposedly an upgrade, but no clear info on how that would be the case. It looks like cost-cutting more than anything else, with a small PCB, integrated RAMDAC and no feature connector. The lack of discrete RAMDAC means it can't be the same chip as the 1024I non-Plus. First guess would be an Acumos/Cirrus Logic chip, but can't be sure.
Edit: and found one, in the one place I should have started looking 😉
https://thandor.net/object/1277
So Cirrus Logic CL-GD5402 aka Acumos VGA2. Thandor also did benchmarks: it's slightly faster in Doom and Quake but slower in SVGAbench. These are pure DOS benchmarks and apparently it's a very efficient framebuffer. Where accelleration can be used (i.e. Windows 3.x), I'd expect the ET4000X to be much faster as it supports acceleration where the VGA2 doesn't.
dionb wrote on 2025-07-10, 11:27:The "I" is for ISA, so is probably correct (think: LAPC-I) […]
The "I" is for ISA, so is probably correct (think: LAPC-I)
What's under the sticker? I can find a lot on the regular 1024I, which has a Headland/G2 GC208 chip. This 'plus' card was supposedly an upgrade, but no clear info on how that would be the case. It looks like cost-cutting more than anything else, with a small PCB, integrated RAMDAC and no feature connector. The lack of discrete RAMDAC means it can't be the same chip as the 1024I non-Plus. First guess would be an Acumos/Cirrus Logic chip, but can't be sure.
Edit: and found one, in the one place I should have started looking 😉
https://thandor.net/object/1277
So Cirrus Logic CL-GD5402 aka Acumos VGA2. Thandor also did benchmarks: it's slightly faster in Doom and Quake but slower in SVGAbench. These are pure DOS benchmarks and apparently it's a very efficient framebuffer. Where accelleration can be used (i.e. Windows 3.x), I'd expect the ET4000X to be much faster as it supports acceleration where the VGA2 doesn't.
Interesting, the page i was reading about the earlier (non plus model) suggested that the i stood for interlaced (could run 1024x768 in interlaced mode only), so after all this, its just a re badged cirrus logic chipset?
Here I was thinking it was their own chip, i think in the early days that Video Seven were designing their own chips.
