Author Topic: bdaqua's site & info on the 7800 gs geforce  (Read 3773 times)

supernova777

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bdaqua's site & info on the 7800 gs geforce
« on: February 13, 2014, 08:20:23 AM »
http://www.s155158671.websitehome.co.uk/index.html

http://www.s155158671.websitehome.co.uk/gainwardbliss780.html
^^^ apparently this is the best ever achieved in an MDD graphics wise? (and decent for the powermac g5 aswell! note that its compatible with both powermc g4 + g5)
sorry he shows it in a quicksilver not an mdd;) but has other posts talking about it in an mdd..
(other cards had compatibility issues with mdd, so yes the 7800gs works in mdd
and is the most recent modern technology that will work!)

now the question is.. can u boot os9 with it?
im trying to ask bdaqua but.. who knows how to get in touch with this guy!

in this 7800gs bit.. i think he says he got a 7600GT to work properly by using a 7800GS bios flash
in the card... cool. but wouldnt this also affect the clock speed of the card aswell? i mean the main benefit that
this card 7600GT was  rated at amuch higher faster clock speed then the 7800GS..
perhaps the g4's simply cannot handle too fast a clock speed.. and all this looking for the fastest
vid card stuff is futile;) and i should stfu and go make some music instead;) lol

as a bonus heres a vid by a uk mac enthusiast youtuber as he enthusiastically tests +installs his 7800gs
[youtube]http://www.youtube.com/watch?v=Sb8mwLUVBqs[/youtube]
ok i had thought he would be testing it in a g4 .. not so relevant:D
« Last Edit: February 14, 2014, 04:45:14 AM by chrisNova777 »

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Re: bdaqua's site
« Reply #1 on: February 13, 2014, 10:57:48 PM »
Some video chips are downclocked and have rendering pipelines disabled. The manufacturer determines in the testing process whether that chip can be a full fledged xxx, or it has some faults. Rather than scrap those chips, they disable some features and retest it at lower clock speeds, and deactivate pipelines and stuff like that. Some of you may remember the old AMD Duron processors. The last of them, the ones running at 1.4 and 1.6 GHz, were actually Athlon XP processors but with most of the L2 cache deactivated. I have successfully "transformed" those Duron cpus into Athlon XP processors. It was a simple procedure at that time. Same goes for some Semprons. Some of them have a second core that can be activated on some motherboards, after which they are recognized as Athlon x2.
Anyway, going back to videocards. Even if a xyz chip has a higher frequency than its "big brother" xxx, that doesn't mean it will be faster. The so called "big brother" is likely to have all the features the chip was designed for. A whole bag of rendering pipelines, higher bandwidth and so on. I hope you can understand what i wrote here. ;D
As for the g4 not being able to handle the throughput, that wouldn't be a problem theoretically. It would just induce higher latencies, making the videocard wait for instructions from the cpu.
27" iMac Intel Core i5 3,1 GHz, 16GB ddr3, 1TB hdd, Radeon HD 6970 1GB gddr5
MacPro 8 core Xeon 2,8 GHz
PowerMac G5 Dual Core 2,3 GHz
17" iMac G5 1,6GHz
PowerMac G4 Quicksilver dual 800MHz
PowerMac G4 MDD, Dual 1,25GHz
PowerMac G3 B&W 400MHz
iMac G3 Ruby 400MHz
IMac G3 Blueberry 400MHz
PowerBook G3 400MHz, AirPort
Macintosh Quadra 610
Macintosh Classic II
SGI O2 R10000SC 175MHz, 192 MB ram, 4GB hdd
Other stuff:PS4 slim, PS3 slim, Xbox classic, Xbox 360, Nintendo 64, Nintendo DSi XL, Gameboy Advance, Original GameBoy, GameBoy color.

 

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