kokodin
New Member
- Joined
- Aug 29, 2023
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Hello, i have a very stupid idea, as an adult with disposable income i can try to realise. it concerns breaking 3 old graphic cards just to make one wird one , that likely wouldn't even work.
I always wondered how much of a bottleneck weak gcn 2 graphic card might have besed on how much vram it has, and if it is possible to bios mod ram controller like it was once done on those rx 460 or 470 with 4gb bioses and 8gb of memory soldered on. and radeon r7 260x or 360 seems to be perfect giena pig.
Obviously there is no pcb out there that would support more chips of the same density, and only cards with the same core, probably different variant, that had 4gb were those workstation w5100 and w4300 cards , but those has cut down core and power compared to r7's sharing the core package . workstation cards also came with 8 dram chips while pedestrian model has only 4.
Getting pretty good memory of double density is probably the simplest thing, there is currently a sale on used r5 430 with 2 8Gb chips each in the same gddr5 package. I tested them to 1500mhz on that oland untill it started artifacting at 1550 , but i mostly did that to prove one kid that gt 710 is not a graphic card. My slightly overclocked oland r5, had 1000mhz on the core and 1500 on the memory, slight undervolt and increased power limit, but it did twice the framerate than gt710 with similar vram, but double the price on used market around where i live.
Getting used or memory broken r7 260/360 wouldn't be mucz of a problem either .
The only question is, can Tobago pro, Bonaire pro or Bonaire xtx handle such chips.
Since i couldn't google any boardviews for 260/360 cards i can't even confirm pcb has all connections required.
but i am really curious how a 4gb version of that gpu stack against rx 460/560, given the gpu is direct replacement with just newer shaders , video encoders and more ram (on a smaller node too)
There are obviously some screenshots floating around with 4gb 360's but that most likely effect of nime drivers changing firepro cards into radeons.
So what do you think is this completly drunk talk or is there any merit in it? Memory controller technically can handle 4gb of vram , why not give it to it?
This is not a question about econoics or workmanship, because i can handle almost anything other than bios moding myself, it wouldn't be the firstbga job, and you have to have a hobby.
Well i was able to find 260x boardview and datasheet for the r5 430 memory chips.
and there is no missing traces or extra bits, Both memory chips 4manabit used on 260x and 8 megabit used on oem 430 have exact the same pinout, the only difference is a12 and a13 address pin, instead of a12 only? but memory controller can handle both 4gb and should be able to talk with this ram in kind of reversed chinese gpu ram scam way. i can't find any bios editor that allow you to change ram size for this generation of gpu's
I always wondered how much of a bottleneck weak gcn 2 graphic card might have besed on how much vram it has, and if it is possible to bios mod ram controller like it was once done on those rx 460 or 470 with 4gb bioses and 8gb of memory soldered on. and radeon r7 260x or 360 seems to be perfect giena pig.
Obviously there is no pcb out there that would support more chips of the same density, and only cards with the same core, probably different variant, that had 4gb were those workstation w5100 and w4300 cards , but those has cut down core and power compared to r7's sharing the core package . workstation cards also came with 8 dram chips while pedestrian model has only 4.
Getting pretty good memory of double density is probably the simplest thing, there is currently a sale on used r5 430 with 2 8Gb chips each in the same gddr5 package. I tested them to 1500mhz on that oland untill it started artifacting at 1550 , but i mostly did that to prove one kid that gt 710 is not a graphic card. My slightly overclocked oland r5, had 1000mhz on the core and 1500 on the memory, slight undervolt and increased power limit, but it did twice the framerate than gt710 with similar vram, but double the price on used market around where i live.
Getting used or memory broken r7 260/360 wouldn't be mucz of a problem either .
The only question is, can Tobago pro, Bonaire pro or Bonaire xtx handle such chips.
Since i couldn't google any boardviews for 260/360 cards i can't even confirm pcb has all connections required.
but i am really curious how a 4gb version of that gpu stack against rx 460/560, given the gpu is direct replacement with just newer shaders , video encoders and more ram (on a smaller node too)
There are obviously some screenshots floating around with 4gb 360's but that most likely effect of nime drivers changing firepro cards into radeons.
So what do you think is this completly drunk talk or is there any merit in it? Memory controller technically can handle 4gb of vram , why not give it to it?
This is not a question about econoics or workmanship, because i can handle almost anything other than bios moding myself, it wouldn't be the firstbga job, and you have to have a hobby.
Well i was able to find 260x boardview and datasheet for the r5 430 memory chips.
and there is no missing traces or extra bits, Both memory chips 4manabit used on 260x and 8 megabit used on oem 430 have exact the same pinout, the only difference is a12 and a13 address pin, instead of a12 only? but memory controller can handle both 4gb and should be able to talk with this ram in kind of reversed chinese gpu ram scam way. i can't find any bios editor that allow you to change ram size for this generation of gpu's