I think this one's better because you're still getting a dual-core CPU, but it's a faster dual-core. And your bus speed is considerably faster than the dv6t. Also ATI makes some beast video cards. So, yeah, I'd get the dv6z
Okay, I'm shopping for a new laptop, and I've managed to narrow it down to two equally priced custom builds. I don't know which one is better! The major differences between the two are just processor speed and graphics card, and to me it looks like the first one is better. Still I don't know crap about graphics cards (I do a bit of light gaming, mostly older games, so I'd like the best possible card out of the cheapest cards) or the quality of processor brands. From what I've read in reviews, the first one has really hot exhaust, and the second one is really noisy. I can live with either, but I thought I'd mention it. It should be also noted that I really want a durable laptop. This is key. I'm a student, I take it to school. I need it for work. This will be on the road 6 days a week.
dv6z series
Processor: AMD Turion X2 Ultra Dual-Core ZM-85 (2.3Ghz, 2MB L2 Cache, 4.4 GT Bus Speed)
Graphics Card: ATI Radeon HD 3200
or
dv6t series
Processor: Intel Core 2 Duo Processor T6400 (2.0Ghz, 2MB L2 Cache, 800Mhz FSB)
Graphics Card: Intel Graphics Media Accelerator 4500MHD

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