Thinkpads Forum

Please can any one explain x60(T2300) / x60s (L2300) Difference in performance issue.

Thank you.

L2300 is the "Low Voltage (LV)" version of T2300. L2300 runs cooler and consumes much less power than T2300.
Also, X60s based on L2300 is thiner than X60 based on T2300.

Thank you for your reply.

But I mean is there any difference in performance such as in calculation or office production or execution of other software.

Thanks

There is no performance difference. The low voltage models are from the same manufacturing line as the regular models. After manufacturing all of the CPUs go thru parametric testing and are sorted into different categories (speed/voltage/etc.). Models that can run at a low voltage are stamped L.

HaHa, are you kidding?

duffy wrote:There is no performance difference. The low voltage models are from the same manufacturing line as the regular models. After manufacturing all of the CPUs go thru parametric testing and are sorted into different categories (speed/voltage/etc.). Models that can run at a low voltage are stamped L.

No, he is not kidding. Its called speed binning; they take all the chips, test the max speed they can run at different voltages and bin them accordingly. Not all chips can run 1.66GHz @ whatever low voltage the L-series run at, so those get binned as T-series at whatever speed they can do.

I believe it is the process to check the
SINGLE core and DUAL core.....not necessary to LV, or ULV processors.

Because the total current, voltage, and heat/power are different,
I believe there are some differences in CPU structure design,
and
As you can see in Intel CPU roadmap,
no matter what the process 90nm or 32nm is utilized,
especially the ULV processor is always around 1-1.2GHz,
we even dont have any ULV duo core right now..
maybe it is a restriction beyond the simply sorting and parametric testing.