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Is an SSD connected to a SATA 2 port still faster than a 7200 RPM HDD connected to a SATA 3?

Jackgamer91

Just wondering because I have a motherboard that only has SATA 2 ports and I might pick up an SSD to go with it.

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by ~30%

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by ~30%

That seems like a pretty darn random number.

The advantage a ssd generaly has over the hdd is much faster random access speed which isn't bottlenecked by sata 3gbps.

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For sure. My 120GB 840 EVO (SATA II) in my second rig gets about an extra 100MB/s of throughput compared to my 250GB WD Blue on SATA III.

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That seems like a pretty darn random number.

The advantage a ssd generaly has over the hdd is much faster random access speed which isn't bottlenecked by sata 3gbps.

HDD ~190 mb/s SATA 2 max ~280mb/s 

110/280*100 ~30%

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HDD ~190 mb/s SATA 2 max ~280mb/s 

110/280*100 ~30%

Ahh.

That's not exactly how the speed of a ssd is generally compared to the hdd as the main difference is the random access time. 

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HDD ~190 mb/s SATA 2 max ~280mb/s 

110/280*100 ~30%

 

ermm ...

 

Any half-decent SSD will max out a SATA 2 port, so :

 

280 / 190 = 1.473684210526316 -> 47% faster

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ermm ...

 

Any half-decent SSD will max out a SATA 2 port, so :

 

280 / 190 = 1.473684210526316 -> 47% faster

sorry did the math wrong you are correct

Thats that. If you need to get in touch chances are you can find someone that knows me that can get in touch.

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sorry did the math wrong you are correct

 

No worries, it happens. 

 

In fact the real-life difference will be a lot larger because the SSD will be able to max out the connection much more than the hard drive would reach that theoretical maximum read/write speed. 

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You will get in benchmarks 250mb read and 230mb write with a good SATA III SSD on a SATA II bus.

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It's still a silly comparision considering traditional HDD's cannot saturate a Sata II port yet anyways.

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