The Intel Broadwell Desktop Review: Core i7-5775C and Core i5-5675C Tested (Part 1)
by Ian Cutress on June 2, 2015 7:45 AM ESTProfessional Performance: Linux
Built around several freely available benchmarks for Linux, Linux-Bench is a project spearheaded by Patrick at ServeTheHome to streamline about a dozen of these tests in a single neat package run via a set of three commands using an Ubuntu 11.04 LiveCD. These tests include fluid dynamics used by NASA, ray-tracing, OpenSSL, molecular modeling, and a scalable data structure server for web deployments. We run Linux-Bench and have chosen to report a select few of the tests that rely on CPU and DRAM speed.
Due to our limited testing time and other issues, only the i7-5775C was processed in our Linux tests. These should be updated for Part 2.
C-Ray: link
C-Ray is a simple ray-tracing program that focuses almost exclusively on processor performance rather than DRAM access. The test in Linux-Bench renders a heavy complex scene offering a large scalable scenario.
NAMD, Scalable Molecular Dynamics: link
Developed by the Theoretical and Computational Biophysics Group at the University of Illinois at Urbana-Champaign, NAMD is a set of parallel molecular dynamics codes for extreme parallelization up to and beyond 200,000 cores. The reference paper detailing NAMD has over 4000 citations, and our testing runs a small simulation where the calculation steps per unit time is the output vector.
NPB, Fluid Dynamics: link
Aside from LINPACK, there are many other ways to benchmark supercomputers in terms of how effective they are for various types of mathematical processes. The NAS Parallel Benchmarks (NPB) are a set of small programs originally designed for NASA to test their supercomputers in terms of fluid dynamics simulations, useful for airflow reactions and design.
Redis: link
Many of the online applications rely on key-value caches and data structure servers to operate. Redis is an open-source, scalable web technology with a b developer base, but also relies heavily on memory bandwidth as well as CPU performance.
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jimbo2779 - Tuesday, June 2, 2015 - link
I could be wrong but I doubt the difference will be huge or even noticeable In most games and setups.Refuge - Tuesday, June 2, 2015 - link
I wouldn't purchase one of these with those intentions to be honest. They are DX11.5 not 12, and we've yet to see how well DX12 makes all the dGPU's and iGPU's play yet in the real world.But I also can't afford to be that early adopter anymore either.
XZerg - Tuesday, June 2, 2015 - link
it would be good to note the month each series of the cpus were launched as that would really tell the story better.MrSpadge - Tuesday, June 2, 2015 - link
Ian, a point for the OC review: Broadwell-C is listed as only supporting DDR3L-1600. You even underclock your memory for the stock review. What about higher memory speeds and voltages? Is it as painless as with older K series CPUs? The fat iGPU can certainly use more bandwidth despite having Crystal Well. And anyone profiting from Crystal Well as CPU cache could also use more bandwidth. Einstein@Home is a prime example for this.watzupken - Tuesday, June 2, 2015 - link
I feel Intel is creating way too many models with slight differences.MrSpadge - Tuesday, June 2, 2015 - link
I don't disagree, yet your comment seems oddly out of place under the review of 2 chips with features we have never seen combined before:14 nm Broadwell (energy efficient, better IPC than Haswell)
overclockable (the stock speeds are far too low, yet it already sometimes beats or ties the mighty i7 4790)
Crystal Well (it's going to rock in some applications)
twice as much GPU power than ever before in a socketed configuration (it's going to be a fine OpenCL 2.0 number cruncher for some use cases).
AtenRa - Tuesday, June 2, 2015 - link
At what settings did you run memory on the AMD APUs and why only 720p on the integrated Gaming benchmarks ???Novacius - Tuesday, June 2, 2015 - link
I'd like to see a comparison to Haswell's GT3e, too. Will there be one?CFTheDragon - Tuesday, June 2, 2015 - link
Anyone know a US Retailer with the i7-5775C in stock? I have everything else ready for my build, Motherboard, RAM, Gfx Card, etc. Just need the CPU and I have been patiently waiting for these.Refuge - Tuesday, June 2, 2015 - link
They shouldn't be available publicly until about the end of the month. But you may find some early ones if you keep an eye on the right channels.