Latency and 4K Random
The fact that we cannot entirely saturate the 9207-8i leaves us with few parameters that we can test to compare the generational differences between using the 9207-8i with PCIe 3.0 and the 9211-8i with the PCIe 2.0 interface. Typical tests such as our Iometer server emulations will fall short, only showing the limitations of the SSDs themselves.
This leaves us with testing the latency of the HBAs and the sequential read speed with the Crucial M4s. Then we will move onto testing the maximum IOPS with the SanDisk ESS Lightning's.
The 4K latency test reveals that the latency between the two HBAs is very close, with the values listed above the line being the 9207-8i's latency. There is not any significantly appreciable difference between the two.
The 4K random speed, tested with the Crucial M4s, scales nicely with both controllers, yet falls far short of being able to reach the controllers limits. The 9207-8i has a slightly better latency, which leads to a small difference at the upper end of the chart.
The write results are closely aligned as well, with the 9207-8i pulling slightly ahead. This may be due to the variability of performance that can be associated with SSDs, since both are not near the IOPS ceiling for each respective controller. There simply are not SSDs available on the market currently that can provide the amount of write IOPS sufficient to saturate the 9207-8i with only eight devices.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction]
- Page 2 [PCIe 3.0 Makes Its Entrance]
- Page 3 [Specifications, Pricing and Availability]
- Page 4 [Test System and Methodology]
- Page 5 [Latency and 4K Random]
- Page 6 [Sequential Read Speed]
- Page 7 [512B Random Read Testing]
- Page 8 [Thermal Monitoring and Watts to IOPS]
- Page 9 [Final Thoughts]
Recommended for You
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- First look at how Musk's underground tunnels might work
- Overwatch is now home to over 30 million gamers
- Nintendo sold 2.3 million NES Mini consoles
- Nintendo forecasts 10 million Switch sales this year
- Capcom's 2016 financials outline company's future
- G1 Sniper 2 rev 1.0 wont boot with GtX 1070
- H97M Pro4 - Machine comes out of sleep mode when deactivated but monitor does not
- ASUS USB-AC53 Nano AC1200 Wireless Adapter Review
- GIGABYTE Xtreme Gaming XTC700 CPU Cooler Review
- ASRock 990fx Extreme9 and NVMe support
- Get ready for Intel Optane memory with ASRock 200 series motherboards!
- Acer unleashes the Predator Triton 700, a thin yet powerful gaming notebook without compromise
- Acer's new Predator monitors with quantum dot technology deliver spectacular gameplay experiences
- Acer expands its gaming notebook line with the powerful Predator Helios 300
- Western Digital ships fourth-generation Helium Hard Drive platform with Ultrastar He12 12TB advanced storage hard drives