RISC-V CPU Performance Up 8x In Five Years: SiFive HiFive Unmatched To SpacemiT K3

Written by Michael Larabel in Processors on 9 June 2026 at 10:12 AM EDT. Page 5 of 6. 28 Comments.

👁 Google Draco benchmark with settings of Performance Per Thread, Model: Lion. SpacemiT K3 Pico ITX was the fastest.

👁 Opus Codec Encoding benchmark with settings of Performance Per Thread, WAV To Opus Encode. HiFive Unmatched was the fastest.

The single-threaded Opus audio encoder shows the significant gains made to RISC-V core performance over the past five years.

👁 WavPack Audio Encoding benchmark with settings of Performance Per Thread, WAV To WavPack. SpacemiT K3 Pico ITX was the fastest.

The WavPack audio encoding gains were even more impactful.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: HWB Color Space. SpacemiT K3 Pico ITX was the fastest.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: Noise-Gaussian. SpacemiT K3 Pico ITX was the fastest.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: Enhanced. SpacemiT K3 Pico ITX was the fastest.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: Resizing. SpacemiT K3 Pico ITX was the fastest.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: Rotate. SpacemiT K3 Pico ITX was the fastest.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: Sharpen. SpacemiT K3 Pico ITX was the fastest.

👁 GraphicsMagick benchmark with settings of Performance Per Thread, Operation: Swirl. SpacemiT K3 Pico ITX was the fastest.

RISC-V still has a ways to go in competing with modern x86_64 and AArch64 processors as shown by the previous benchmarks, but it was fascinating to quantify the performance difference of RISC-V hardware from the past five years.

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URL: https://www.phoronix.com/review/risc-v-5-year-performance/5

⇱ RISC-V CPU Performance Up 8x In Five Years: SiFive HiFive Unmatched To SpacemiT K3 - Phoronix

RISC-V CPU Performance Up 8x In Five Years: SiFive HiFive Unmatched To SpacemiT K3