PCMARK 8 is the latest version in the series of PC benchmarking tools by Futuremark. Fully compatible with Windows 8 and can be run under Windows 7.
As you can see in the PCMark 8 tests, both the i7 4771 and E3-1285v3 are very close in performance with the i7 4771 getting slightly better results. These two CPU's are very close in specifications with only 100MHz different in stock and turbo speeds.
SiSoftware Sandra 2013 SP6 is the latest version in the series of PC benchmarking tool by SiSoftware. Sandra 2013 tests the performance of your PC by running a whole series of tests ranging from CPU, Memory, Storage, and Graphics benchmarks to come up with a final number as a rating of the systems performance.
Again, we see only a slight difference between the two CPU's. As usual, running these tests multiple times will net slightly different scores so these CPU's are about equal in this test.
Passmark performance test runs 32 tests ranging from CPU, 2D & 3D graphics, disk and memory tests to come up with an overall system ranking that allows you to determine how fast your computer is in comparison with other systems.
Here we see only a slight difference between these two CPU's, which is something that will be common in the rest of the tests.
DPC Latency Checker analyses the computer system ability to handle real-time data streams. It is useful to find the causes of interruptions in real-time audio and video streams known as dropouts.
Note: DPC Latency Checker does not show the correct results in Windows 8 or Server 2012 systems because of how the implementations of kernel timers operate in these operating systems. We ran each test for 5 minutes and recorded the max latency over this period. Results from 0-1000 are good, while higher than 1000 show that the system might have a problem.
Even though there is a little over 100 point difference here for DPS results, this is very close and well under the 1000 millisecond threshold.