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Intel Finally Documents Broadwell's Compute Architecture

Intel

Published on 11 September 2014 01:26 PM EDT
Written by Michael Larabel in Intel
2 Comments

From the Intel Developer Forum this week in San Francisco Intel has finally published a white-paper covering their "Gen 8" compute architecture.

Among the key changes with Gen8 compute architecture is that the 32-bit integer computation throughput has been doubled, there's native 16-bit floating-point support added to the execution units, for some Broadwell processors the write bandwidth from the GTI has doubled, there's support for coherent shared virtual memory between CPU cores and the Intel HD Graphics, the L3 data cache capacity has increased, improved local bandwidth between execution units and the L3 data cache, and other changes designed to increase the Gen8 GPGPU performance.

Intel Finally Documents Broadwell's Compute Architecture


The 20 page document describing Broadwell's compute architecture isn't a formal driver-level programming specification but covers all of the technical changes over previous-generation Ivy Bridge / Haswell compute.

Intel Finally Documents Broadwell's Compute Architecture


Those interested in reading about Broadwell's compute architecture can read the public documentation via Intel.com. Intel's compute support under Linux for their graphics hardware continues to be implemented in open-source via their Beignet project for exposing OpenCL.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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