MSI X370 Krait Gaming AM4 Motherboard Review
Subsystem and Gaming Benchmarks
SATA3 6G and M.2 PCIe x4:
USB 3.1 Gen1 and USB 3.1 Gen2
On-board Audio Test with RMAA
Before proceeding with audio benchmarks, the DPC latency must be low to make sure that the system is capable of producing usable results. DPC is a Windows function that involves prioritizing tasks within the OS. High DPC latencies are caused by several things including hardware device conflict. The DPC Latency Monitor graphically displays the latency level of the system in real time.
After leaving the system running for 20+minutes, the ISR and DPC routine execution times peaked at 600.20 and 508.030 respectively and are well under the 4000 microseconds range (at which point the system will be unsuitable for real-time audio playback), so the audio tests can proceed.
RightMark Audio Analyzer tests using a short 3-inch 3.5mm audio-loop cable that goes in the rear line-in and line-out ports for a loopback test to objectively test internal audio performance.
| Audio Performance Color Code: | Excellent | Very good | Good | Average | Poor |
Network Connectivity Testing
Network testing was conducted with a 4-port Cisco E3200 Gigabit Dual-Band Wireless N router and a pair of 6-ft long Cat5E cables connecting the server PC and the test motherboard. The server system is running an Intel Core i7-5775C processor on an Asrock Z97 Extreme 4 motherboard with an Intel i218V PHY. Interrupt Moderation was disabled, running TCP and UDP tests.
Gaming Tests
Futuremark’s 3DMark is a semi-synthetic gaming benchmark that calculates both graphics and CPU-bound physics in a controlled series of tests and provides scores that can be compared with other gaming platforms. Unigine Heaven is a synthetic benchmark that is completely GPU bound for testing possible PCI-E graphics performance inconsistencies.
A gaming test run for Bioshock Infinite at the lowest resolution and settings was performed as well as a test with maximum details at a 1920 x 1080 resolution. CPU performance difference can be gauged due to the reduced reliance on the discrete GPU at those low levels theoretically but a high resolution benchmark was also conducted to see if there are inconsistencies with PCI-E graphics performance.
