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HDD SATA and Cache questions

December 18, 2012 1:54:33 PM

I am planning to build to build a gaming PC/HTPC early next year. I am looking at a video card to play games on max settings in 1920x1080p. I plan to go with a 256 GB SATA 6.0 GB/s SSD, likely a Crucial, and two Seagate Barracuda HDDs. My two questions have to do with the HDDs:

1. I was told that a SATA 3.0 GB/s HDD would be sufficient for high end gaming and that it would be pointless to go with a SATA 6.0 GB/s HDD. However, I was told that I should go with an SSD and HDD with a similar bandwidth. Would choosing a HDD with SATA 3.0 GB/s create a bottleneck with the SSD or cause a slower response time than going with a SATA 6.0 GB/s HDD?

2. The SATA 6.0 GB/s HDD have 64 MB of cache while the SATA 3.0 GB/s HDD have 32 MB memory cache. Would 32 MB cache be sufficient high-end gaming and for games like the Mass Effect Trilogy, Star Wars: The Old Republic, or TERA, or would I be better off with 64 MB of cache?