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And what is top speed? The peak sequential numbers from ATTO are unprecedented.
The reads were almost 2.7GB/s and the writes were a little over 1.3GB/s. Inevitably the average scores on the more testing AS SSD benchmark were lower, but still 2.1GB/s and 1.2GB/s respectively isn't bad.
There are some interesting scores when we get to the 4k random read/write performance though.
At 30MB/s, the 4k random read speed is nothing to write home about, but the write performance of 200MB/s is stunning. That's nearly twice as quick as the closest competing drive on that front.
Compare all that with the fastest PCIe drive we've previously tested, the Samsung XP941, and you can see where the AHCI protocol is holding things back. Its 4k write performance is a quarter what the SSD 750 is capable of and the sequential performance is also lagging behind too.
It's not just in the synthetic tests where the SSD 750 shows its speed though.
Our real-world tests also have the Intel drive coming out on top, completing our 30GB Steam folder copy in two minutes flat. We noted its peak speed during transfer of around 750MB/s. That's mega quick.
We're all about consistency too and this new NVMe drive shows no problems there either, remaining at a pretty constant speed throughout the heavy PCMark 8 extended storage tests.
It wasn't consistently as quick as the PCIe Samsung drive during its PCMark testing, however.
Benchmarks
Peak sequential read performance
ATTO - MB/s: higher is better
Intel SSD 750 1.2TB - 2671
Samsung XP941 512GB - 1060
Samsung 850 Pro 512GB - 561
Peak sequential write performance
ATTO - MB/s: higher is better
Intel SSD 750 1.2TB - 1322
Samsung XP941 512GB - 997
Samsung 850 Pro 512GB - 532
Average sequential read performance
AS SSD - MB/s: higher is better
Intel SSD 750 1.2TB - 2136
Samsung XP941 512GB - 1055
Samsung 850 Pro 512GB - 506
Average sequential write performance
AS SSD - MB/s: higher is better
Intel SSD 750 1.2TB - 1175
Samsung XP941 512GB - 885
Samsung 850 Pro 512GB - 500
4k random read performance
AS SSD - MB/s: higher is better
Intel SSD 750 1.2TB - 38
Samsung XP941 512GB - 23
Samsung 850 Pro 512GB - 37
4k random write performance
AS SSD - MB/s: higher is better
Intel SSD 750 1.2TB - 200
Samsung XP941 512GB - 49
Samsung 850 Pro 512GB - 107
Real-world compression performance
5GB folder - Seconds: quicker is better
Intel SSD 750 1.2TB - 69
Samsung XP941 512GB - 73
Samsung 850 Pro 512GB - 73
Real-world transfer performance
30GB folder - Seconds: quicker is better
Intel SSD 750 1.2TB - 120
Samsung XP941 512GB - 132
Samsung 850 Pro 512GB - 169
Our testing platform is a stock-clocked Intel Core i7-4770K on an Asus RoG Maximus VII Hero Z97 motherboard with 8GB Corsair Dominator DDR3 at 1,600MHz.
