Performance characteristics of the SX GBICs are the same no matter which Catalyst switch they're in. From Cisco's data sheet for GBICs:
1000BASE-SX GBIC
Wavelength: 850nm
Fiber type: MMF
Fiber optic cable core size 62.5 microns, modal bandwidth 160 MHz/km: cable distance = 220m.
Fiber optic cable core size 62.5 microns, modal bandwidth 200 MHz/km: cable distance = 275m.
Fiber optic cable core size 50.0 microns, modal bandwidth 400 MHz/km: cable distance = 500m.
Fiber optic cable core size 50.0 microns, modal bandwidth 500 MHz/km: cable distance = 550m.
Suggestion #1: Unless you know you have 50-micron MMF end-to-end, assume that you have 62.5-micron.
Suggestion #2: Unless you know your 62.5-micron MMF has modal bandwidth 200 MHz/km end-to-end, assume that you have modal bandwidth of 160 MHz/km.
Good Design Rule: Maximum specified distance over multimode fiber is 220 meters (worst-case), until proven otherwise.
Will it work past this distance? It might. Paraphrasing the data sheet again, and substituting SX GBIC details:
The WS-G5484 1000BASE-SX GBIC provides a minimum optical power budget of 7.5 dB. To determine the supported link distance you should measure your cable plant with an optical loss test set to verify that the optical loss of the cable plant (including connectors and splices) is less than or equal to this figure. The optical loss measurement must be performed with a 850-nanometer light source.
Hope this helps.
