Haswell avx2 x264 download

Gcc coreavx2 haswell cpu optimization tests phoronix. It allows certain math operations to be conducted in parallel very rapidly. Download 64bit version if you have a 64bit operating system you can download this version. So i am building a new pc, and with the pc upgrade i am planning on reencoding my library in h. Update against latest upstream x264, also switch to new video source for mirror. It should be kept in mind that these are microbenchmarks. The haswell avx2 column will work marginally faster on the right machine, but will crash on other cpus. The first step is to download programs for monitoring and stress testing.

Compared to x264, even on the veryslow preset, x265 encodes take. The avx2 instruction on haswell probably needs its own section. It combines a high level of instability with relatively low temps. Its also for weaker buildin memory controller and can help by lower cpuv or higher memory oc. However id suspect youre choking everything but your ram, if your trying to play and record on the same machine. Chart average voltage values now rounds to 3rd decimal place. If you want a single executable that will run on any of the pleiades processor types, with suitable optimization to be determined at run time, you can compile your application using the option o3 ipo axcoreavx2 xsse4. Its a real world stresser in that it just runs the x264 video encoding software.

For x26410bit, haswell is 17% faster than ivy, and 24% faster than snb. I use x264 or aida for a quick test, then quickly move to handbrake. Intels xeon scalable processor family makes x265 and uhdkit the ideal option for a wider range of scenarios including both live and offline hevc encoding, and they double the performancecost youll get with our softwarebased encoding libraries. Because ivy bridge does not support avx2 it differs a bit from the suggestion above. Were also seeing significant performance improvements with x264 roughly 40% higher. Most probably related to better instruction efficiency and avx2 support which is heavily. Contribute to mirrorx264 development by creating an account on github. Avx2 is yet another extension to the venerable x86 line of processors, doubling the width of its simd vector registers to 256 bits, and adding dozens of new instructions. Recently, after successfully compiling the next generation x265 h. Haswell overclocking guide with statistics overclock. We are trying to understand the max throughput capability of the hardware encoder for h. First of all, if you use adaptive voltage and avx2 is used, the cpu will automatically raise the. Avx2 faster than native popcnt instruction on haswell.

Id guess the much bigger avx2 instruction sequence will have visible cache effects in macrobenchmarks i. The results werent too dramatic over the ivy bridge optimization level coreavxi, but this weekend i have some fresh results using a gcc 4. New instructions for transactional memory, bitmanipulation, full 256bit integer simd and floating point multiplyaccumulate are combined in a microarchitecture that essentially doubles computational throughput and cache bandwidth. The new processor family should be a notch faster, get improved graphics performance and are more energy efficient. As a result, disablingenabling avx on sandyivy or amd chips should have only small impact, but having avx2 on haswellbroadwell and skylake makes huge difference. I have an inteli7 haswell 4771, and latest ubuntu 14. X264 stress test is the recommended stress test for haswell, popularized by darkwizzie in his guide. Haswelle, is not able to push clocks a lot with some decent testing some serious bench with avx2 like prime95 28. Haswell cpu will demmand extra voltage when running stresstest running avx, but only under stress conditions the cpu, working on everyday basis and running also other intensive programs like handbrake, cinebench, etc will not require that extra voltage. For those unfamiliar, its the preferred test for the haswell. For this section were going to use hwinfo and x264 stress test. Advanced vector extensions 2 avx2, also known as haswell new instructions, is an expansion of the avx instruction set introduced in intels haswell microarchitecture. Download old versions free downloads of previous versions of the program. Now, i stream to web, as well as a few media players, so only 12 devices will have native h.

Although we still have one more generation to go before quicksync can apparently deliver close to x86 image quality, haswell doesnt shy away from. Please ensure you pick the correct column for your cpu. The latest intel xeon processor e5 v3 family includes a feature called intel advanced vector extensions 2 intel avx2, which can potentially improve application performance related to high performance computing, databases, and video processing. Im running windows 7 x64 with the latest drivers 9. Since x264 has just one floating point assembly function, only two fma3fma4 instructions get used in all of x264 not counting duplicates from differentarchitecture versions of the function. Easyminer easyminer is mostly a graphical frontend for mining bitcoin,litecoin,dogeecoin and other various al. Were very excited to be delivering systems with the new xeon e52600v3 and e51600v3 cpus. Advanced vector extensions 2 avx2, also known as haswell new instructions, is an expansion of the avx instruction set introduced in intels haswell. Avx2 or fma3 so much as x264 would and handbrake would update to include the updated encoder that does. Actuallt the thing was like 200mb to download compared to prime95s 5mb or whatever. Intels haswell cpu microarchitecture real world tech. Download portable version portablestandalone version meaning that no installation is required, just.

Months ago when haswell was brand new i had already run some compiler optimization benchmarks looking to see the impact of the new cpu instruction set extensions added by haswell provided. Avx2 optimization and haswellep xeon e52600v3 cpu features. An application that is compiled with avx2 instructions can run only on haswell and broadwell nodes. Official intel haswell k overclocking thread guru3d forums. Even in nonoptimized code, haswell pulls forward by 1012% in all three tests.

Software x264 will choose the veryfast preset with a setting that will require a certain amount of bit rate to look indistinguishable according to your recording quality setting, and the software x264 low cpu usage preset setting will use ultrafast, but ask x264 to effectively use more bit rate to make up for the quality loss. Hi all we are trying to leverage xeon e3 based microserver as video server for encoding the raw data yuv into h. Intel today finally releases their 4th generation core processors. Provides bestinclass performance, compression, and features. Here we will explain the context, and provide an example of how using intel avx2 improved performance for a commonly known benchmark. Avx2 is a hardware instruction introduced in haswell. Similarly, ivy bridge is beaten out by haswell, thanks to the new cores avx2 support and better performance characteristics. Introduction to avx2 optimizations in x264 hacker news. Ive seen some implications that the qsv hw in haswell can now support full 4k h264 encoding level 5.

I just purchased aida64 as i started to really like it and prefering it to stresstest over prime the thing is. Whats the maximum supported hw encode h264 level or resolution if it deviates in the haswell qsv implementation. Developer shenzhen thunder networking technologies ltd product avx2 description avx2 filename. In x264, avx is also used for 3operand functionality, but i think that might be obsoleted by mov elimination in newer cpus.

Intels haswell cpu is the first core optimized for 22nm and includes a huge number of innovations for developers and users. Instruction set architecture isa continues to evolve and expand its functionality, enrich user experience, and create synergy across industries. Avx2 shipped with intels latest processor microarchitecture, codenamed haswell. Gain better performance and data management for video processing, scientific simulations, financial analytics, and more. When you click the download button, the downloading window will open. If in doubt, choose the any cpu column as it will work on any machine. Achieves dramatic performance, encoding 4 or more 1080p streams in realtime on a single consumerlevel computer. Added info about gigabytes ridiculous uncore ramping to x40 when set to stock. First, click the download button with the green background the button marked in the picture. Contribute to jpsdrx264 development by creating an account on github.