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Are laptop CPUs slower than Desktop Mhz for Mhz?

Have Blue

Have Blue

Have Blue

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24 Oct 2007
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Cheltenham
Hi,

I have just been offered a new computer at work. However they have given us a choice of either a laptop or a desktop.

The laptop comes with an Intel Core 2 Duo T7250 (2.0GHz/2MB/800MHz) with Intel GMA X3100

The desktop comes with an Intel Core 2 Duo E4500 (2.20Ghz/2MB/800MHz)

Apart from the obvious 200MHz difference from the start i'm sure someone once told me that laptop processors were slower than a desktop processor with the same MHz. Is this correct?

Basically I would like the laptop but if it is noticeably slower than the desktop I can ask for a CPU upgrade.
 
These are the possible upgrades apparently. Bear in mind I cannot really ask for something that is too much faster than the desktop version!

Intel Core 2 Duo T7250 (2.0GHz/2MB/800MHz) with Intel GMA X3100
Intel Core 2 Duo T7500 (2.2GHz/4MB/800MHz) with Intel GMA X3100
Intel Core 2 Duo T9300 (2.5GHz/6MB/800MHz) with Intel GMA X3100
Intel Core 2 Duo T9500 (2.6GHz/6MB/800MHz) with Intel GMA X3100
Intel Core 2 Duo T7250 (2.0GHz/2MB/800MHz) with nVidia Quadro NVS 135M
Intel Core 2 Duo T7500 (2.2GHz/4MB/800MHz) with nVidia Quadro NVS 135M
Intel Core 2 Duo T9300 (2.5GHz/6MB/800MHz) with nVidia Quadro NVS 135M
Intel Core 2 Duo T9500 (2.6GHz/6MB/800MHz) with nVidia Quadro NVS 135M
Intel Core 2 Duo T8100 (2.1GHz/3MB/800MHz) with Intel GMA X3100
Intel Core 2 Duo T8300 (2.4GHz/3MB/800MHz) with Intel GMA X3100
Intel Core 2 Duo T8100 (2.1GHz/3MB/800MHz) with nVidia Quadro NVS 135M
Intel Core 2 Duo T8300 (2.4GHz/3MB/800MHz) with nVidia Quadro NVS 135M
 
Well, I have been running my e4300 mostly at stock and recently purchased a laptop which has processor at identical clocks.

To be honest, can barely notice a difference between the two. The laptop will run at slower clocks when running off battery (mine drops to 1.6GHz), but I have been hard pushed to actually notice a difference.

I have to be honest, I was surprised how snappy the latptop felt. Its also nice to be able to use it anywhere :)

Edit: PS - if they give you the option to upgrade to t8100, go for it, if for no reason but lower power consumption
 
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Not for C2D,s like for like.
They originated as a Mobile part, before been picked up for desktops.
Intel Core 2 Duo T7500 (2.2GHz/4MB/800MHz) with nVidia Quadro NVS 135M if you must stay at 2.2GHz..

if you can;
Intel Core 2 Duo T9500 (2.6GHz/6MB/800MHz) with nVidia Quadro NVS 135M
 
What will you be using the computer for?

The processor speed won't make any difference if you're just running MS Office all day.
 
We will be using the computers for SQL server administration (not running the SQL server on the pc) including handling some very large files (millions of rows). Also we will be creating applications using Visual Studio, so there will be times when the CPU is stressed hence why I wanted to make sure the laptop was at least on a par with the desktop they are offering us.
 
Have Blue said:
We will be using the computers for SQL server administration (not running the SQL server on the pc) including handling some very large files (millions of rows). Also we will be creating applications using Visual Studio, so there will be times when the CPU is stressed hence why I wanted to make sure the laptop was at least on a par with the desktop they are offering us.
Click to expand...

If you are doing this then i would go for the desktop. The laptop will have a slower harddrive and running sql server on it will be a LOT slower. I curently have a e4500 (2.2Ghz C2D) in my work comp and that can run SQL server fine (With about 4 Gb worth of databases on it) and visual studio as well as virtual PC all at the same time with no problems.

In short go for the Desktop as it will have a faster HDD and RAM :)
 
Core 2's in laptops are the same as Core 2's in pc's ... clock for clock, depending on cache and the underlying core (e.g. conroe, penryn, wolfdale)

Laptops though have much older motherboards, usually slower ram, slower hard drives, slower graphics cards, thermal issues which lead to underclocking of graphics cards and cpu's.
 
We have the option to upgrade the HD to 7200rpm in place of the standard 5400rpm drive so this should sort the drive speed issue (won't let us stretch to SSD though!)
 
any upgrade options on the desktop?

unless u need portability of laptop get a desktop. With laptop u allways gonna have a risk of having it stolen from car, etc.
 
Those of us who choose a laptop will have the option to work from home a couple days each week so that is a major driver to wanting the laptop, but still having the same functionality as hte desktop they were offering us.

The FSB is 800mhz apparently compared to the desktop 1300mhz I think.
 
I dont think you'll notice much of a performance difference between the E4500 and the T7250 Both those chips are 800FSB. If you can get extra ram, that will help avoid the system swapping in and out of disk, and that really helps, as even the best laptop drives are still generally a little slower than their desktop counterparts. Though if you can get the 7200rpm disks, and plenty of ram I think you might as well go for the lappy. Especially if you can work at home.

Its the E8000 series which have the 1333mhz fsb (+ a few of the E6?50's). So if your right about the E4500 then really.. take the laptop.
 
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