How powerful is Nvidia’s new Titan X?

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TitanX

We know very little about Nvidia’s Titan X – just that when Nvidia announced at it GDC last week, that it would be their most powerful (and most expensive!) card to date. We have no idea what sort of specification Nvidia’s latest prohibitively expensive beast possesses – though we do know that it’ll outperform every other single card solution on the planet, and that we’ll finally be getting a little more of the nitty-gritty at Nvidia’s GPU Technology Conference on March 17th. But just how powerful is the card?

With little more than speculation and informed guesswork to go on, quite. Nvidia’s CEO Jen-Hsun Huang revealed the beastly new card at Epic’s Unreal Engine 4 keynote at GDC and revealed just two facts about the card: Its 12GB of memory (presumably, without any odd memory shenanigans), and a ludicrous eight billion transistor count.

We also learned that the card’s heart, the chop that powers it is codenamed GM200, which means it’s based on the same core technology as the GTX 980. The transistor count through, if we’re to use it as a comparative number for anything, means that we could potentially see around a 50% increase in performance over Nvidia’s current king of the Maxwell crop. That’s obviously rather dependent on the new card’s memory bandwidth, which we’d expect to at the very least match that of the last TITAN-branded card.

Here’s a look at the specs for NVidia’s Maxwell cards, compared to the Kepler-based Titan Black

NVIDIA GeForce GTX Titan X NVIDIA GeForce GTX Titan Black NVIDIA GeForce GTX 980 NVIDIA GeForce GTX 970 NVIDIA GeForce GTX 960
GPU Architecture Maxwell Kepler Maxwell Maxwell Maxwell
GPU Name GM200 GK110 GM204 GM204 GM206
Die Size ~600mm2 561mm2 398mm2 398mm2 228mm2
Process 28nm 28nm 28nm 28nm 28nm
CUDA Cores 3072? 2880 2048 1664 1024
Texture Units TBA 240 128 104 64
Raster Devices TBA 48 64 56 32
Clock Speed TBA 889 MHz 1126 MHz 1051 MHz 1127 MHz
Boost Clock TBA 980 MHz 1216 MHz 1178 MHz 1178 MHz
VRAM 12 GB GDDR5 6 GB GDDR5 4 GB GDDR5 4 GB GDDR5 2 GB GDDR5
Memory Bus 384-bit 384-bit 256-bit 256-bit 128-bit
Memory Clock 7.0 GHz? 7.0 GHz 7.0 GHz 7.0 GHz 7.0 GHz
Memory Bandwidth 336.0 GB/s 336.0 GB/s 224.0 GB/s 224.0 GB/s 112.0 GB/s
TDP 225-250W 250W 165W 145W 120W
Power Connectors 8+6 Pin 8+6 Pin Two 6-Pin Two 6-Pin One 6-Pin
Price $999-$1349 US? $999 US $549 US $329 US $199 US

Numbers like that can – and usually are – rather boring, so perhaps a more interesting demonstration of what we might expect from the Titan X is this demonstration of Unreal Engine 4 – which was rendered in real-time on a single Titan X at GDC.

Last Updated: March 9, 2015

Geoffrey Tim

Editor. I'm old, grumpy and more than just a little cynical. One day, I found myself in possession of a NES, and a copy of Super Mario Bros 3. It was that game that made me realise that games were more than just toys to idly while away time - they were capable of being masterpieces. I'm here now, looking for more of those masterpieces.

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