GeForce 256 DDR for vintage pc

Discussion about old graphics cards, monitors and video related things.

Re: GeForce 256 DDR for vintage pc

Postby Jasin Natael » 2019-5-17 @ 16:42

I have one. It doesn't work, gets super hot super fast. Artifacts and won't run any benchmarks without crashing.

I've kept it around as a curiosity only.
AOpen AP53 AMD K6/2 - 233MHZ - 64MB RAM 20GB WD HDD Win98SE

Compaq Presario 5152 AMD K6-III+ 550MHZ 512MB RAM ATi Radeon 9250SE 256MB PCI Aureal Vortex 2

Asus A7V-VE AMD Athlon T-Bird 1.20GHZ 512MB RAM ATi Radeon 7500 DDR 64MB Vortex 2 32GB KingSpec SSD
User avatar
Jasin Natael
Newbie
 
Posts: 48
Joined: 2017-3-18 @ 04:11
Location: United States

Re: GeForce 256 DDR for vintage pc

Postby havli » 2019-5-17 @ 18:59

I think for NV1x architecture the major bottleneck is the memory bandwidth. Fillrate is not that important. Therefore GF 256 DDR will be always faster than any GF2 MX... even OC models like 200/200 MHz Asus V7100/pro. GF4 MX440 is nice, but only 128-bit models... 64-bit is more or less the same like GF2 MX or GF 256 SDR.
HW museum.cz - my collection of PC hardware
User avatar
havli
Oldbie
 
Posts: 752
Joined: 2014-11-07 @ 16:51
Location: Czech Republic

Re: GeForce 256 DDR for vintage pc

Postby swaaye » 2019-5-17 @ 19:18

GF4 also adds dithering to DXT1/S3TC so it's no longer horribly banded as with GF1-3.
User avatar
swaaye
Moderator
 
Posts: 7396
Joined: 2002-7-22 @ 21:24
Location: WI, USA

Re: GeForce 256 DDR for vintage pc

Postby Skanque » 2019-5-17 @ 19:51

Dell 9830U nVidia 180-P0003-0100-D02 GeForce 256 32MB AGP VGA Video Card RARE

Try this description on eBay, I already have two Geforce 256, so think someone ells will be more happy with it.
Skanque
Newbie
 
Posts: 19
Joined: 2019-1-15 @ 08:42
Location: Denmark

Re: GeForce 256 DDR for vintage pc

Postby ph4nt0m » 2019-5-18 @ 10:45

havli wrote:I think for NV1x architecture the major bottleneck is the memory bandwidth. Fillrate is not that important. Therefore GF 256 DDR will be always faster than any GF2 MX... even OC models like 200/200 MHz Asus V7100/pro. GF4 MX440 is nice, but only 128-bit models... 64-bit is more or less the same like GF2 MX or GF 256 SDR.

Not exactly. GF 256 and GF2 didn't have any Z-buffer optimisations unlike GF3 and newer. Most notably hidden surface removal and Z-buffer compression. They wasted a lot memory bandwidth and fill rate on overdraw, i.e. rendering objects hidden behind other objects visible to the viewer. This is the area where early Radeons were so much better. In addition, memory controllers of GF 256 and GF2 weren't multichannel, i.e. one 128-bit vs. four 32-bit channels. It was of a lower importance since they didn't support pixel shaders, but anyway.
User avatar
ph4nt0m
Member
 
Posts: 173
Joined: 2018-1-01 @ 19:03

Re: GeForce 256 DDR for vintage pc

Postby dries_86 » 2019-5-18 @ 13:09

Skanque wrote:Dell 9830U nVidia 180-P0003-0100-D02 GeForce 256 32MB AGP VGA Video Card RARE

Try this description on eBay, I already have two Geforce 256, so think someone ells will be more happy with it.

Seems to be right, 180-P0003-0100-D02 . Currently at least 2 for sale on ebay in US.
dries_86
Newbie
 
Posts: 34
Joined: 2017-6-03 @ 11:59

Re: GeForce 256 DDR for vintage pc

Postby The Serpent Rider » 2019-5-19 @ 21:45

GF 256 and GF2 didn't have any Z-buffer optimisations unlike GF3 and newer.

GeForce 256 had some optimisations with the texture filtering though.
User avatar
The Serpent Rider
Oldbie
 
Posts: 1322
Joined: 2017-3-25 @ 19:07
Location: Stagnant Demesne

Re: GeForce 256 DDR for vintage pc

Postby silikone » 2019-5-21 @ 04:02

ph4nt0m wrote:
havli wrote:I think for NV1x architecture the major bottleneck is the memory bandwidth. Fillrate is not that important. Therefore GF 256 DDR will be always faster than any GF2 MX... even OC models like 200/200 MHz Asus V7100/pro. GF4 MX440 is nice, but only 128-bit models... 64-bit is more or less the same like GF2 MX or GF 256 SDR.

Not exactly. GF 256 and GF2 didn't have any Z-buffer optimisations unlike GF3 and newer. Most notably hidden surface removal and Z-buffer compression. They wasted a lot memory bandwidth and fill rate on overdraw, i.e. rendering objects hidden behind other objects visible to the viewer. This is the area where early Radeons were so much better. In addition, memory controllers of GF 256 and GF2 weren't multichannel, i.e. one 128-bit vs. four 32-bit channels. It was of a lower importance since they didn't support pixel shaders, but anyway.

Doesn't it still save a write operation upon a failed depth test? That should help on SDR where the four pixel pipelines get bottlenecked by the bandwidth, but the DDR has one of the highest bandwidth-to-fillrate ratios of all NVIDIA cards ever released.
Do not refrain from refusing to stop hindering yourself from the opposite of watching nothing other than that which is by no means porn.
User avatar
silikone
Member
 
Posts: 256
Joined: 2012-3-21 @ 19:53

Re: GeForce 256 DDR for vintage pc

Postby rasz_pl » 2019-5-21 @ 20:56

silikone wrote:
ph4nt0m wrote:
havli wrote:I think for NV1x architecture the major bottleneck is the memory bandwidth. Fillrate is not that important. Therefore GF 256 DDR will be always faster than any GF2 MX... even OC models like 200/200 MHz Asus V7100/pro. GF4 MX440 is nice, but only 128-bit models... 64-bit is more or less the same like GF2 MX or GF 256 SDR.

Not exactly. GF 256 and GF2 didn't have any Z-buffer optimisations unlike GF3 and newer. Most notably hidden surface removal and Z-buffer compression. They wasted a lot memory bandwidth and fill rate on overdraw, i.e. rendering objects hidden behind other objects visible to the viewer. This is the area where early Radeons were so much better. In addition, memory controllers of GF 256 and GF2 weren't multichannel, i.e. one 128-bit vs. four 32-bit channels. It was of a lower importance since they didn't support pixel shaders, but anyway.

Doesn't it still save a write operation upon a failed depth test?

Thats how normal Zbuffer works :-)
What advanced Zbuffer optimizations do is:
-save bandwidth reading Z values (compression, simplest is cached tiling with clever min/max/cleared per tile, more advanced adds actual transparent compression per tile)
-skips fragment shader altogether - saves on all the texture lookup/blending (early-z culling)
-terminate whole triangle after single read (hi-z)
Ati HyperZ marketingwank was all 3 of the above combined
rasz_pl
Member
 
Posts: 346
Joined: 2017-6-04 @ 00:57

Previous

Return to Video

Who is online

Users browsing this forum: No registered users and 1 guest