SysTools PST Converter processed 194,430 items (21.3 GB) to PDF in 1 hour 37 minutes. Previous version crashed on the same job.
Previous version finished 11 export formats, and SysTools PST Converter beat it in all 11 with a median gain of 8.1 times. Exports take from 2 minutes for ICS and VCF to 1 hour 37 minutes for PDF.
Watch PST Converter Finish Before Previous Version
Select an export format and press Replay. Both bars use real test times, sped up so you can watch them finish.
Previous version2:34:00
Finished 2 hr 34 min
SysTools PST Converter0:02:00
Finished 2 min
77.0x
faster, saves 2 hr 32 min
Test Setup for the PST Converter Comparison
Results cover time, output size, items written, CPU and memory for 16 export formats from one PST source of 21.3 GB.
194,430
Items in the PST source
21.3 GB
Source size
16
Export formats
1.99 GHz
Processor
11
Formats finished on both versions
Sep 2026
Test date
Previous version has results for 14 of the 16 formats, and 11 of them finished. DOC and RTF have no previous result to compare.
PST Converter Speed Comparison by Export Format
SysTools PST Converter beat previous version in all 11 formats that both versions finished. MBOX leads the mail formats at 17.9 times, and CSV trails at 2.8 times, which still saves 3 hours 39 minutes.
Previous versionSysTools PST ConverterGreen bar length shows the share of previous time.
Add the 11 formats together and previous version needed 1 day 22 hours. SysTools PST Converter needs 6 hours 42 minutes for the same exports.
Previous version crashed on PDF and MSG, and on DOCX after 1 day 12 hours 52 minutes. SysTools PST Converter finished those three in 1 hour 37 minutes, 1 hour 10 minutes and 1 hour.
ICS and VCF tests cover 527 and 1,728 items, and the test log records them to the minute. Their 77.0 times gain comes from small sets, so the mail formats give the typical results.
Output Size and Files Converted by Format
MHT output is the largest at 42.5 GB from a 21.3 GB source, and PDF follows at 26.7 GB. ICS and VCF outputs stay under 7 MB because they hold only 527 and 1,728 items.
SysTools PST Converter wrote every item in 7 formats. CSV, HTML, JSON, MHT, TXT, DOC, DOCX and RTF skipped between 6 and 31 items, and MSG wrote 192,224 of 194,430.
Previous version wrote between 194,423 and 194,430 items in HTML, JSON, MHT, PST and TXT, and 134,000 items in MSG before the crash.
Source is a 21.3 GB PST file with 194,430 items, and the EML, EMLX, MBOX, DOC, DOCX and RTF tests count 192,175 mail items. Not recorded means the test log has no usable value for that cell.
CPU and Memory Use During PST Conversion
SysTools PST Converter used 100% of the 1.99 GHz processor in all 16 tests. Previous version also shows 100% in all 14 tests with a recorded value.
Previous versionSysTools PST Converter
Average CPU Use
Previous versionof the processor
SysTools PST Converterof the processor
Average of the 14 tests with a CPU value for both versions
Average Memory Use
Previous version8.3 GB
SysTools PST Converter9.4 GB
Average of the 14 tests with a memory value for both versions
Memory use stays between 8.3 GB and 9.8 GB for SysTools PST Converter, with 9.8 GB in 11 tests and 8.3 GB in 5. Previous version shows 8.3 GB in every test with a recorded value.
Cookies are important to the proper functioning of a site. To improve your experience, we use cookies to remember log-in details and provide secure log-in, collect statistics to optimize site functionality, and deliver content tailored to your interests. Click Agree and Proceed to accept cookies and go directly to the site or click on More Information to see detailed descriptions of the types of cookies and choose whether to accept certain cookies while on the site.
