NVIDIA Introduces Tesla K80 With Two GK210 GPUs – World’s Fastest Accelerator With 2.9 TFlops of Compute

Hassan Mujtaba
Posted Nov 17, 2014
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In a conference regarding supercomputers, NVIDIA introduced their high-performance Tesla K80 accelerator featuring two Kepler GK210 GPU cores. We last saw Tesla K80 (Previously codenamed Atlas) three months ago where it was denoted by the GK210-DUO name and today, we can finally confirm the specifications of NVIDIA’s latest Telsa accelerator with a double precision compute performance of 2.9 TFlops.

NVIDIA Intros GK210-DUO Powered Tesla K80 Computing Accelerator

Since the Tesla K80 is a dual-chip graphics card, it will feature two GK210 chips which are codenamed as the “GK210-DUO”. The specifications will include two GK210 chips featuring 4992 CUDA cores (2496 CUDA Cores each), 416 TMUs and 96 ROPs. The card features a massive 24 GB GDDR5 VRAM featured along a 384-bit bus interface, clocked at 5.00 Gbps. It pumps out 480 GB/s bandwidth and features a maximum TDP of 300W that is 75W lower than the GeForce GTX Titan Z.

The core clock is maintained around 573 MHz and the card also features a boost clock of 875 MHz. The memory is clocked at 5 GHz for each GPU. For cooling, the card can adopt a passive heatsink design if the thermals are under control. The large heatsink shroud comes in green and black color with a silver lining which gives a pleasant view, although the card would never be seen when packed inside a dense server. Large exhaust vents push the hot air out of the case which is supplied from the cooling in the server environment.

A slide posted in NVIDIA’s HPC oriented Heterogeneous Computing Solutions presentation shows off the Tesla K80 “GK210-DUO” graphics card in a performance slide which provides a peak bandwidth of 480 GB/s and total double precision performance rated at 2.9 TFlops. The single precision performance for the card is rated at over 8 TFlops which is impressive from a HPC perspective. The card will retail for a high price of around $7000 US or even more but for users who want to stick something close to the Tesla K80 can just grab the GeForce GTX Titan Z for $3000 US. Even the GeForce GTX Titan Z is getting major price cuts through system builders with a few OEM builders offering a $1000 US price cut on the card dropping it down to $2000 US which still is a huge price for a graphics card but a lot cheaper than its original MSRP.

NVIDIA GeForce GTX 1080 Mobility GPU Pictured - First Notebook Chip With GDDR5X Memory, 20% Faster Than The Original Titan X

While AMD has only W9100 in the competition which features 2.62 TFlops of double precision compute which is close to NVIDIA’s dual card offering, they do have plans to offer a dual chip FirePro variant in the near future which can easily overtake their green team rival.NVIDIA Tesla K80

NVIDIA Tesla K80 Specifications:

NVIDIA Tesla K80 NVIDIA Tesla K40 NVIDIA Tesla K20X NVIDIA Tesla K20 NVIDIA Tesla K10
CUDA Cores 2496 x 2 2880 2688 2496 1536 x 2
Core Clock 573 MHz 745MHz 732MHz 706MHz 745MHz
Boost Clock 875 MHz 810MHz, 875MHz N/A  N/A N/A
Memory Clock 5GHz GDDR5 6GHz GDDR5 5.2GHz GDDR5 5.2GHz GDDR5 5GHz GDDR5
Memory Bus 384-bit x 2 384-bit 384-bit 320-bit 256-bit
VRAM 24GB 12GB 6GB  5GB 8GB
Single Precision ~8.5 TFLOPS 4.29 TFLOPS 3.95 TFLOPS 3.52 TFLOPS 4.58 TFLOPS
Double Precision 2.9 TFLOPs 1.43 TFLOPS (1/3) 1.31 TFLOPS (1/3) 1.17 TFLOPS (1/3) 0.19 TFLOPS
Transistor Count 14.2 Billion 7.1 Billion 7.1 Billion  7.1 Billion 7 Billion
TDP 300W 235W 235W  225W 225W
Cooling Active/Passive Active/Passive Passive Active/Passive Active/Passive
Manufacturing Process TSMC 28nm TSMC 28nm TSMC 28nm TSMC 28nm TSMC 28nm
Architecture Kepler GK210 Kepler GK110 Kepler GK110 Kepler GK110 Kepler GK104
Launch Price TBC $5499 $3799 $3299 $2500

NVIDIA Tesla K80 Performance Slides:NVIDIA Tesla K80 Slide_3 NVIDIA Tesla K80 Slide_4 NVIDIA Tesla K80 Slide_6

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