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It's also an interesting juxtaposition, because it directly allows to benchmark the architectures in the same system environment. In the RP2350 it is possible
by cpldcpu 2y ago
It's also an interesting juxtaposition, because it directly allows to benchmark the architectures in the same system environment.
In the RP2350 it is possible to either use the RISC-V cores, the CM33 cores or even use one of each.
- IshKebab 2y agoI dunno if it will be that interesting due to area differences. Maybe if Raspberry publish the area stats too?
- cpldcpu 2y agoThey mentioned somewhere that they could not designate the actual area increase since it is part of the synthesized digital area. The area increase to include the RISC-V cores was negligible, apparently.
- doctorpangloss 2y agoIs a RISC-V core just the serial numbers filed off an ARM core?
- throwaway48476 2y agoThe core design isn't tightly coupled to the front-end ISA. AMD zen was going fo be offered in both x86 and ARM but the ARM front-end was canceled.
- Zeetah 2y agoI wonder if without the RISC-V cores the design was pad limited i.e. it had due area that wasn't used. So, they put in the RISC-V cores for no die cost. There will be some cost to test the RISC-V cores.
- phire 2y agoBut such benchmarks don't tell you anything at all about general ARM vs RISC-V performance. Those benchmarks would only tell you about those exact two cores, Cortex-M33 vs Hazard3. There are many other ARM and RISC-V implementations that are better and worse, depending on what customers need.