# Intel ISPC 10 Hacker News commenters recommended Intel ISPC and 4 criticized it, November 2025 to November 2026. It was recommended in 6 of 13 months. It meets the Hacker Approved badge rule. **Verdict:** Free compiler for writing portable SIMD code, and people often call it the best option for that job. Critics note it adds a large compiler and LLVM dependency and has Intel-specific origins. ## Why people recommend it - Preferred SIMD option over alternatives (5 comments): "I think this is the best solution for truely portable SIMD." ([source](https://news.ycombinator.com/item?id=48166371)) "The only two good choices are something like ISPC" ([source](https://news.ycombinator.com/item?id=49881056)) "I think ISPC is still the proper way to go." ([source](https://news.ycombinator.com/item?id=48166641)) - Portable multi-target SIMD code (3 comments): "You'll get sane aliasing rules from the perspective of performance, multi-target binaries with dynamic dispatching" ([source](https://news.ycombinator.com/item?id=46676034)) "something designed to target multiple architectures, such as ISPC" ([source](https://news.ycombinator.com/item?id=49251419)) "I think this is the best solution for truely portable SIMD." ([source](https://news.ycombinator.com/item?id=48166371)) - Brings GPU-style parallel model to CPUs (2 comments): "ispc is something that deserves to be much more widely known about- it does an excellent job of bringing the cuda programming model to cpus" ([source](https://news.ycombinator.com/item?id=46676921)) "Definitely the closest thing so far (doesn’t do multiprocessing) but does seem to do SIMD / multithreading and GPU auto parallelizing!" ([source](https://news.ycombinator.com/item?id=48072307)) ## Alternatives hackers recommend - [GCC](https://hackerapproved.com/p/gcc.md): 138 recommend - [Clang](https://hackerapproved.com/p/clang.md): 74 recommend - [Free Pascal compiler](https://hackerapproved.com/p/free-pascal.md): 38 recommend - [GraalVM Native Image](https://hackerapproved.com/p/graalvm-native-image.md): 31 recommend - [.NET Native AOT](https://hackerapproved.com/p/net-native-aot.md): 26 recommend ## Cite as Hacker Approved, "Intel ISPC", https://hackerapproved.com/p/ispc/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).