HD Tune SSD 2:
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Now, the anomalies:
1. With HDTune, at least this favorite version of mine, when you try to benchmark the Storage Spaces drive, the transfer rate remains the same (which I found surprising if this is really a raid stripe), but the process fails with a read error at exactly the middle of the operation. Probably some kind of false positive due to incompatibility with the Storage Spaces tech and the legacy HDTune version.
2. The benchmarks are an improvement...until a certain point, which is the main anomaly:
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3DMark 11, Cloud Gate, Sky Diver, and Fire Strike are all major regressions in performance over the Surface Book 4, while the other numbers and benchmarks (including SuperPI and wPrime and HDTune, which are not featured on this chart) are substantially better.
Can anyone else test and post their own numbers? Maybe I have a funny CPU or something and need to RMA the unit? Although I am skeptical of that, given improved performance in other areas.
Truly a strange scenario. I had seen similar benchmark results on other sites comparing the Pro 4 and the Pro 2017, but some of these numbers are really bad - and what I'd seen elsewhere, IIRC, featured better numbers for the more recent benchmarks but not the legacies (which is actually the exact opposite of the pattern I have here).