5 ms·

From TFA: "Up to 8GB DDR4/3, LPDDR4/3 at 2133/2800 Mbps (directly included in the chip, as far as I understand)" It's a separate chip - in fact, the one labele

From TFA: "Up to 8GB DDR4/3, LPDDR4/3 at 2133/2800 Mbps (directly included in the chip, as far as I understand)" It's a separate chip - in fact, the one labeled "cxmt" in the picture with a close-up shot of the JH7110 SoC. AFAIK, the 2GB version is not in production right now, so the only options are 4GB and 8GB. If you're in Germany, there's a significantly cheaper option than the 123€ amazon.de link given in the article: 106€ at https://www.rasppishop.de/StarFive-VisonFive https://www.rasppishop.de/StarFive-VisonFive (yes, that's a typo in the URL, but it works... they also offer the 4GB version).

snvzz 3y ago
I got my VisionFive 2 late January last year. It is a great board, which stays cool (~60C) with just passive cooling (XU4Q's is compatible). It still is imho the better RVA20/RV64GC SBC available; other chips might be faster somewhat but they use more power and need active cooling. Upstream support (linux kernel, uboot, opensbi) is very good[0]. I am very hopeful for Milk-V Oasis[1] (SiFive 16x P670 + 8x X280) and other new boards with faster CPUs and full RVA22 compliance plus 1.0 Vector extension. 0. https://rvspace.org/en/project/JH7110_Upstream_Plan https://rvspace.org/en/project/JH7110_Upstream_Plan 1. https://community.milkv.io/t/introducing-the-milk-v-oasis-with-sg2380-a-revolutionary-risc-v-desktop-experience/780 https://community.milkv.io/t/introducing-the-milk-v-oasis-wi...
- brucehoult 3y ago
  > It still is imho the better RVA20/RV64GC SBC available Agreed. Certainly the safest bet. The Pine64 Star64 or Milk-V Mars might be as good or better (and Mars is a little cheaper, but also missing features), but the VisionFive 2 has the most development and support. > other chips might be faster somewhat but they use more power and need active cooling TH1520 is a bit disappointing. It benchmarks faster on Dhrystone, Coremark, my primes benchmark etc, but on real world work it is often slower. I've found it about 10% slower building the GNU toolchain. Richard Jones has noted the same thing building Fedora packages. On the Dotnet "LINQ" tests the vf2 takes 4.5 minutes while the LPi4A takes 5.5 minutes. The vf2 has NVMe (which I'm not using). It has faster I/O to the same external Samsung 2 TB USB3 SSD which I use on both boards. The 2 MB of L2 cache on the vf2's JH7110 vs the 1 MB on the TH1520 probably also contributes to real-world performance. > I am very hopeful for Milk-V Oasis Yup. I don't believe the promised timeline, but SOPHGO have proven they can make a decent SoC, the Oasis will be much cheaper than the Pioneer, and 16x Arm A78 equiv is much more useful for most people most of the time than 64x A72 equiv. That's 13 SPECInt2006/GHz vs 6, per core, so significantly better on anything using up to 16 threads, and no worse for anything that uses no more than 32 threads. The SiFive cores will also be a lot more standards-compliant.

snvzz 3y ago

I got my VisionFive 2 late January last year. It is a great board, which stays cool (~60C) with just passive cooling (XU4Q's is compatible). It still is imho the better RVA20/RV64GC SBC available; other chips might be faster somewhat but they use more power and need active cooling. Upstream support (linux kernel, uboot, opensbi) is very good[0]. I am very hopeful for Milk-V Oasis[1] (SiFive 16x P670 + 8x X280) and other new boards with faster CPUs and full RVA22 compliance plus 1.0 Vector extension. 0. https://rvspace.org/en/project/JH7110_Upstream_Plan https://rvspace.org/en/project/JH7110_Upstream_Plan 1. https://community.milkv.io/t/introducing-the-milk-v-oasis-with-sg2380-a-revolutionary-risc-v-desktop-experience/780 https://community.milkv.io/t/introducing-the-milk-v-oasis-wi...

brucehoult 3y ago
> It still is imho the better RVA20/RV64GC SBC available Agreed. Certainly the safest bet. The Pine64 Star64 or Milk-V Mars might be as good or better (and Mars is a little cheaper, but also missing features), but the VisionFive 2 has the most development and support. > other chips might be faster somewhat but they use more power and need active cooling TH1520 is a bit disappointing. It benchmarks faster on Dhrystone, Coremark, my primes benchmark etc, but on real world work it is often slower. I've found it about 10% slower building the GNU toolchain. Richard Jones has noted the same thing building Fedora packages. On the Dotnet "LINQ" tests the vf2 takes 4.5 minutes while the LPi4A takes 5.5 minutes. The vf2 has NVMe (which I'm not using). It has faster I/O to the same external Samsung 2 TB USB3 SSD which I use on both boards. The 2 MB of L2 cache on the vf2's JH7110 vs the 1 MB on the TH1520 probably also contributes to real-world performance. > I am very hopeful for Milk-V Oasis Yup. I don't believe the promised timeline, but SOPHGO have proven they can make a decent SoC, the Oasis will be much cheaper than the Pioneer, and 16x Arm A78 equiv is much more useful for most people most of the time than 64x A72 equiv. That's 13 SPECInt2006/GHz vs 6, per core, so significantly better on anything using up to 16 threads, and no worse for anything that uses no more than 32 threads. The SiFive cores will also be a lot more standards-compliant.