Re:RISC-V CPU arrives on a tablet starting at $149
by brucehoult on Tuesday August 27, 2024 @09:17PM
(#41375071)
> RISC-V cpus are still at the performance level of Raspberry Pi 4, a $50 computer from five years ago.
What do you mean "still"? Those are brand new RISC-V CPUs, or were a year ago when they came out.
The base RISC-V specification which the current cores implement (except the ones from the last couple of months) was not even formally frozen and published yet when the Pi 4 came out. Getting comparable RISC-V boards out in 4 years was a great effort. Note that the Pi 4 arrived eight years after the ARMv8-A spec was published.
That original spec doesn't contain a lot of important things such as SIMD which make a huge difference to those Geekbench scores. They are not comparing like to like.
By this time next year we'll have RISC-V boards performing better than the Pi 5, less than two years after it (possibly 1.5 years).
A year after that, RISC-V things currently well into their design pipeline will be somewhere between Zen 1 and Apple M1 performance.
The rate of progress is incredible. In the last 2-3 years many designers of current CPUs from Apple, Intel, AMD, Arm, Qualcomm have moved to RISC-V companies.
What do you mean "still"? Those are brand new RISC-V CPUs, or were a year ago when they came out.
The base RISC-V specification which the current cores implement (except the ones from the last couple of months) was not even formally frozen and published yet when the Pi 4 came out. Getting comparable RISC-V boards out in 4 years was a great effort. Note that the Pi 4 arrived eight years after the ARMv8-A spec was published.
That original spec doesn't contain a lot of important things such as SIMD which make a huge difference to those Geekbench scores. They are not comparing like to like.
By this time next year we'll have RISC-V boards performing better than the Pi 5, less than two years after it (possibly 1.5 years).
A year after that, RISC-V things currently well into their design pipeline will be somewhere between Zen 1 and Apple M1 performance.
The rate of progress is incredible. In the last 2-3 years many designers of current CPUs from Apple, Intel, AMD, Arm, Qualcomm have moved to RISC-V companies.