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Can mac see full GPU RAM of 4GB non flashed PC card? – Will it still run slower than flashed?
I hear all kinds of contradictions. Wondering if some of the learned folks here have drawn any conclusions.
MacVidCards has smaller selection, and higher cost than going PC route – but at least you know it will work.
I have heard that non flashed cards do not use full 16 X mode, so are much slower. Still true? 4GB card will work at full RAM or not?
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4 Replies
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Deja vu, dude!
I’ve not seen non-flashed cards running at half speed, and I’ve run lots of non-flashed cards. CUDA has direct memory access and isn’t limited by driver issues related to OpenGL or OpenCL.
https://JuanSalvo.com
https://theColourSpace.com -
They perform exactly the same..
They just don’t boot…thats itA slice of color…
Resolve 10.1.0.021
Colorist / VFX / Aerial footage nerd
https://vimeo.com/saschahaber -
The comments you see are likely related to the PCI-E Gen 3. The Mac Pro’s don’t have PCI-E gen 3 slots which the newer cards use. I wouldn’t worry about that though because the current GPU acceleration is not normally pushing a PCI-E Gen 2 16 X slot.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
The final answer talking to the head of tech of a large post house down the block) is: Yes and No
Yes a PC card will run at full speed in OSX, but on the PC side (in Bootcamp) it will still act like a PCI 1.0 connection even in a 16X slot. In an older 2008 Mac Pro, a PC card will run in 1.0 mode under both OSs (not confirmed, as they have no more 2008s to check – but probably/rumor has it)
MacVidcards flashed cards also ensure that power draw is never dangerous, and that heat is reasonable for a Pro enclosure, which is more of a long term issue than short (he said they’ve had Pro burn-outs longer term with PC cards, and none with MacVidCards, but they may have really pushed the power thing too far – hard to say). Mac Vid Cards does limit power usage inside the card for cards certified to work without a PSU. Apparently, also, stability is just a bit better.
For me, I think it’s better to have peace of mind than risk my expensive tower, and I use the PC side a lot wfor Pc-only software, so an extra $200 was not a very big issue. I tend to like the “cry-once” buying philosophy whenever possible, but that’s just me.
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