Paul Hazlett
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It's really disappointing that what's advertised as a 8x electrical slot is completely bogus
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There certainly is the 8 slot function, vs. 16 slot, functioning chassis, but IMHO, I see a real value, still in about 6X transcoding speed, vs. no RRX card in external chassis to a MBR, at this point, with promise for better. To me, a 12 hour to a two hour transcode has value, still.
It's not bogus. It is an 8x electrical slot. But the RED ROCKET-X wants a 16x so we're seeing a 4x slot error (which I assume is a programmatic error code left-over from the original RED ROCKET 8x requirement). RC-X doesn't have an "8x error" so we're seeing a "4x error". Sonnet isn't false-advertising.It's really disappointing that what's advertised as a 8x electrical slot is completely bogus
I don't know if value would be the right word for that configuration. Dollar for dollar, here's the breakdown:
2012 MAC PRO:
$3,000 (approx. price used Mac Pro 2012 full-size tower) + $6,750 (RED ROCKET-X) + $1,000 nVidia Titan card
= $10,750 and you get 6K FF real-time screaming playback with 20 sec/4GB renders. Incredible. All inside one box.
2013-2014 MAC PRO:
$5,000 (reasonably equipped 2013-2014 soda can Mac Pro) + $6,750 (RED ROCKET-X) + $1,050 (Sonnet Echo Express III + Thunderbolt cable)
= $12,750 and you get 6K FF at half-resolution real-time playback.
Spend a lot more for a lot less. The RED ROCKET-X is incredible tech, but this external expansion requirement forced by the new Mac Pro absolutely sucks.
Nick - the 4x vs 8x error stems from early builds of RCX where RED wrote in the message to warn against cards improperly installed. It did not occur with the Magma's due to their expansion architecture being built around PCIe 8x. All TB enclosures still bottleneck to PCIe 2.0 4x with TB2. RED re-wrote the code within RCX to give the warning regardless of performance and/or enclosure (basically all TB applications).
The 8X slot is electrical but limited to PCIe 2.0 4x speed. A RR will saturate this port and function at full performance (within 5% give or take) of an 8x Tower Slot. The issue arrises with the RR-X but again, the card is not operating at full potential (whether that be PCIe or TB) and the DX00 cards are not optimized for Dragon footage yet. We could see a major bump from Non-beta GPU accelerated RCX releases around NAB which is weeks away now. This combined with the fact that RR-X cards aren't readily available yet also means some planning can be done to anticipate what fits your needs.
If you want maximum RR-X performance, I don't think you'll ever get it with the Gen 1 nMP. But you have to decide if you actually need that kind of speed.
Rob - You list a $5K mac pro in your comparison. Are we talking D700 12 core machine or a 6 core D500? A nicely equipped D700 8+ core can deliver some nice results.
Rome - Can you give some more specs on what RAID you built into the Sonnet Chassis? Drives, Raid type, Backplane etc? I get 650MB/s on my Atto R380 card which is limited to Sata II speeds and I'm using a Sata II backplane (Sonnet R800). Anything beyond that has seen 700+ via TB. My Areca TB2 raid can push past 1000MB/s as well, so TB is not a limiting factor if setup properly.