R9 280x showing wrong memory bandwidth

Lance78

Reputable
Sep 25, 2014
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I just bought an R9 280X and its advertised to have a 384 bit bus width, well after installing the card and downloading the driver I checked Catalyst control center and it is showing my total memory bandwidth at 297.6 Gbyte/s... Is this normal? are the bit bus and memory bandwidth the same thing? all the other specs are correct the memory size, the core clock, the memory clock. I am new to computer building, so there is a lot I don't/don't understand. Any help with these question would be much appreciated. My build specs are down below, if they matter

RaidMax Cobra case
Gigabyte 990FX-UD3 Motherboard
FX-8350 CPU
16GB ripsaw RAM
XFX R9 280X Black edition DD
Gigabyte GX 650W power supply
 
Solution
Sounds about right, it will vary based on the system config, at the base clock of 850 believe the spec calls for bandwidth of about 287GB or so, your XFX is pre OCed which should kick it to around the 300 GB range