11-19-2010 12:48 PM
I am looking to buy either the T510 or W510. Priced both and surprisingly they are very close in pricing. I like the larger memory on the graphics card on the W510. I watch old TV shows on the laptop. The SDRAM is a little slower on the W510. Processor is faster.
The information I need is size & weight comparison. I don't want a hefty machine. The pictures I saw of the T510 and W510 makes me think that the W510 is heftier. I hadn't seen any of these machines in person. I am replacing an old T43p which just died. Can someone help me with size & weight comparison between the two machines? I will use this machine primarly at home.
11-19-2010 02:16 PM - edited 11-19-2010 02:17 PM
The T510 and W510 are identical chassis. According to tabook.pdf (http://www.lenovo.com/psref/pdf/tabook.pdf), both are the same weight too.
The RAM clock is limited to 1067MHz on both systems, so having 1333MHz RAM doesn't provide any benefits unless you plan to later move the same memory modules to a 1333MHz bus speed computer.
If you plan to store lots of TV shows on the computer, then a SSD is probably not the best suited for that; it's storage size is small, it's more expensive, and it's primary benefit is to random reads; video files are generally read from sequentially.
11-19-2010 04:16 PM
@ColonelONeill: Something I really wonder is what is the point in offering PC3-10600 optional RAM upgrades for the W510 (and charging the customers more for it, since it makes them think they're paying for higher RAM speeds), if intel’s QM57 chipset can’t support any higher memory speeds than the 1066MHz found on the PC3-8500 types? Don’t tell me the max memory bandwidth is driven by the processor (ix-xxxM or ix-xxxQM) type! Cause then I could pop a PC3-10600 RAM type in a T410 and expect it to run at 1333MHz (given if I have upgraded the processor to the QM series already)!?
@pcot: The main practical difference between the models you mention to my opinion are 3;
11-19-2010 05:50 PM - edited 11-19-2010 05:50 PM
Actually the 720QM memory controller supports 1066 and 1333 memory - check the specs. The CPU is the memory controller in the newer generations. (Unless the BIOS actually forces all memory to 1066.) On the other hand, the 560M does NOT support 1333, so yes, the extra speed memory is hilariously out of place and nothing but a price gouge.
11-19-2010 06:03 PM
11-19-2010 06:14 PM
I do know the specs you referring to (ark.intel should have been my homepage since its launch already) and I agree with your comment. Where I am not so sure about is "The CPU is the memory controller in the newer generations." AFAIK, the fact the QM CPUs support 1333 MHz memory types, does not necessarily mean that as long as the actual memory offers it, they'll take it. Since it is the chipset that has to feed the CPU that kind of bus speeds receiving from the memory.
So in short it won't be the BIOS forcing 1066 MHz, but simply the QM57 chipset not supporting any higher speeds than 1066 MHz.
11-19-2010 06:16 PM
"Also the GPU on the W510 is aimed at people doing lot of CAD, so unless you need it, then just get the T510."
The T510's graphics are based on the 310M, whereas the W510's are based on the 330M. If one intends to do any gaming or other GPU-accelerated tasks (Photoshop, video rendering, etc) the 880M will make a huge difference there, not just in CAD. The FX 880M is nearly twice as powerful as the NVS 3100M by the benchmarks.
11-19-2010 06:22 PM
"So in short it won't be the BIOS forcing 1066 MHz, but simply the QM57 chipset not supporting any higher speeds than 1066 MHz."
There is no northbridge in a QM57, or any i-series chipset. It's a direct connection from the CPU pins to the memory, thus there's no chipset to get in the way and support or not support a certain speed. That's why there's nothing at all listed for memory in the QM57's spec sheet.
11-19-2010 06:23 PM