Data Transfer Rates Vs. I/O Performance : PCI Express Battles PCI-X

Tom's Hardware > Articles & reviews > PCI Express Battles PCI-X

Data Transfer Rates Vs. I/O Performance

06:00 - Wednesday 23 November 2005 by Patrick Schmid
Source: Tom's Hardware – Keywords: pci, express, battles, pciuk

Table of content:

Data Transfer Rates Vs. I/O Performance

Data transfer performance is actually an interesting aspect of the comparison of PCI-X and PCI Express; the numbers do not differ very much between the two. Running a RAID 0 array with as many as eight drives will not even get you close to the maximum bandwidth that either PCIe x4 or PCI-X 133 can offer. So is there any reason to go for a PCI Express controller card, even though they lack an obvious benefit and even come at higher prices?

Yes, there is. We intentionally picked the RAID controller test bed to compare two almost identical cards in the identical, every day environment. As you read on, you will notice that PCIe actually does offer some improvement when it comes to I/O performance.

Benchmark Results

7 – Data Transfer Rates Vs. I/O Pe...
1. 1 – Is PCI Express Really Any Better Than PCI-X?
2. 2 – PCI-X Explained
3. 3 – PCI-X Modes Compared
4. 4 – The Challenge From PCI Express
5. 5 – HighPoint's RocketRAID 2320 PCIe Controller
6. 6 – Array Creation
7. 7 – Data Transfer Rates Vs. I/O Performance
8. 8 – Benchmarks, Continued
9. 9 – Analysis
10. 10 – SATA II RAID Controller Comparison Table
Previous page Array Creation
Next page Benchmarks, Continued

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