Nvidia's Pascal GPU tech specs revealed: Full CUDA count, clock speeds, and more

Here's what Nvidia's monstrous new Pascal GPU looks like under the hood.

When Nvidia took the wraps off the monstrous new Pascal graphics processor as part its Tesla P100 board announcement at the company's GTC keynote on Tuesday, it provided just enough technical information to tantalize: 15 billion transistors, more than twice as many as big Maxwell GPUs! 16GB of blazing-fast, second-gen high-bandwidth memory! Nvidia’s first-ever chip built with 16nm transistors! And so on. But what the company didn’t reveal (besides news about consumer Pascal graphics cards) was nitty-gritty Pascal architecture information. You know, the stuff that graphics card geeks geek out over.

But fear not: Nvidia’s supplied all that juicy information in a supplementary Pascal tech deep dive for developers.

The details reveal some interesting nuggets. While the Pascal GP100 GPU features smaller 16nm transistors than the Titan X, which was built on 28nm technology, its die is actually roughly the same size, at 600mm squared. Pascal puts the space to more efficient use though, stuffing 3584 CUDA cores and 240 texture units into 64 streaming multiprocessors (SM). By comparison, the most potent Maxwell GPU, found in the Titan X and Tesla M40, features 3072 CUDA cores.

Here’s a block diagram of the Pascal GP100 architecture overall. (Blame Nvidia for the small size, though you can click the image to enlarge it.)

pascal 100 gpu block diagram

A block diagram of Nvidia’s Pascal GPU.

And here’s a closer look at the design of each of Pascal’s streaming multiprocessors, each of which packs 64 single-precision (FP32) CUDA cores and 32 double-precision (FP64) CUDA units, which is good for 10.6 teraflops of single-precision floating-point performance and 5.3 teraflops of double-precision performance, respectively. Here’s a closer look at Pascal’s SM design:

pascal 100 gpu streaming multiprocessor

A block diagram of the Pascal GPU’s streaming multiprocessors.

Finally, here’s a full breakdown of the Pascal GP100 GPU’s key tech specs, comparing it (as the Tesla P100, Pascal’s premiere product) against the Maxwell-based Tesla M40 and Kepler-based Tesla K40.

tesla p100 comparison

All these numbers and diagrams are just the tip of the iceberg, though. Check out Nvidia’s Pascal GP100 introduction post for a far deeper dive into the new GPU’s capabilities (seriously—there’s a lot more). You’ll also want to check out PCWorld’s Pascal GPU coverage for more information about the rest of the chip, like its 16GB of second-gen HBM memory and ludicrously fast new NVLink interconnect technology. Remember: All these delicious goodies will drip down to consumer graphics cards sooner than later, with the first 16nm GeForce models expected to land later this year.

Join the Good Gear Guide newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags gpunvidia

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Brad Chacos

PC World (US online)
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?