Core Duo T2450 vs. Core 2 Duo T5270

Hey guys, I want to know how these 2 CPUs compare.Thanks.

Intel® Core™ 2 Duo T5270 (1.4GHz/800Mhz FSB/2MB cache)

and

Intel® CoreTM Duo Processor T2450 (2.0 GHz, 2 MB L2 cache, 533 MHz FSB)

 

the t2450 is a low voltage cpu so is considerable slower than the t5270

 

Also, slower FSB can drag performance down quite a bit.

 

No it isn't. They're both full power laptop cpus.

Yes, but it doesn't make up for the 600MHz difference in clock speed.


Here's the numbers:

wprime 32M calculation:

Dell Vostro 1500 /w T5270 - 53.827 seconds
Apple iMac /w T2400 - 47.046 seconds
Acer Travelmate 8204 /w T2500 - 42.947 seconds


Now considering the T2450 is 200MHz faster than the T2400 and the T2400 is already faster than the T5270, the T2450 will be nicely faster than the T5270.

 

No it isn't. They're both full power laptop cpus.

Yes, but it doesn't make up for the 600MHz difference in clock speed.


Here's the numbers:

wprime 32M calculation:

Dell Vostro 1500 /w T5270 - 53.827 seconds
Apple iMac /w T2400 - 47.046 seconds
Acer Travelmate 8204 /w T2500 - 42.947 seconds


Now considering the T2450 is 200MHz faster than the T2400 and the T2400 is already faster than the T5270, the T2450 will be nicely faster than the T5270.

 

Unless you want 64-bit capability, the T2450 is the better performer. I recall discussion somewhere in the Samsung R20 thread comparing the 1.73GHz T2250 with the 1.66GHz T5300? and the results were very similar.

John

 

core 2 duo anytime, lower heat, better performance. ssse3, 64bit support. do u really need the raw speed?

 

You're so wrong.

Nope, they're pretty similar in heat and power usage.

If clock is the same,yes. 1.4GHz C2D versus 2.0GHz CD - the older CPU will have a far superior performace.

Got it in my CD.

That's the only T5270's advantage.

What's "raw speed"? Is there an "unraw speed"?

 

I lean towards t2450 since t5270 is an OEM(dont know if t2450 is) and really a crippled edition of C2D As everyone else mentioned 64-bit support is the greatest advantage of t5270

 

So to recap:

T2450 faster
Similar powr usage
T5270 has 64 bit capability


Really, it's no competition, I'd take the T2450 anyday, unless you want to use 64 bit OS, which is a rare criteria.

 

I agree with you.

 

Your Core Duo has SSE3, not SSSE3. Unless your core duo is different than my T2450 and CPU-Z is not picking it up on mine? Possible?

 

No, you're right, I haven't noticed the extra 'S' But that's only 16 new instructions.

 

Thanks Moon..you seem to know what you're talking about.The reason I ask is because I just ordered a Fujitsu with the T2450 and is wondering if I should of gotten the Vostro 1500 with the core 2 duo instead.But at at least $160 more.Couple of more things .

So the difference in FSB don't factor into this? I didnt see anyone mention it.

And the laptop I ordered runs on Vista business unfortunately..Isn't that a 64bit OS? And is there an option to change to 32bit? thanks

 

There are 32 and 64 bit versions of each type of Vista (Home, Business etc.). The manufacturer will supply you with 32 bit. 64 bit is generally only for specialised OEMs or if you buy the copy yourself.

64 bit has compatability problems, drivers etc. unless there's a specific reason to go 64 i'd stick with 32.

As for fsb, yes it makes a difference, the higher FSB means the cpu can talk to the ram faster, but in terms of overall speed the 2450 has a pretty big advantage with the higher clock speed.

 

Overall the t2450 should be faster. I have a vostro 1400 with a t5270 and on sisoft sandra in benchs about the same as a 1.83 core duo. On cinebench, it is about as fast as core duo 1.66. However, there are a couple of other considerations worth mentioning:
1. At 1.4mhz vs 2.0mhz of the t2450, the t5270 will consume less power, produce less heat and all other things being equal, run quieter.
2. The t5270 will dynamically overclock one of its cores by 200mhz on single core apps, partially makig up some of the speed difference.
3. You may be able to upgrade the t5270 at a latter time. With a vostro 1400 at least, the cpu can be accessed from the bottom of the laptop and swapped out fairly easily. This may also be possible with the t2450, but there will not be much room to move up with the older core duo platform.

Jdev

 

The upgradability is dependent on the chipset used. I'm able to upgrade to a T7x00 series that uses 667FSB CPU's from my T2450. Just because it comes with a Core Duo does not mean that it is not upgradable to a Core 2 Duo. The chipset is the main factor here, not the current CPU that is installed.

 

Good point. Socket P processors will probably not work, but the socket M chips will.
According to Anandtech "Santa Rosa is composed of Intel's upcoming Mobile 965 chipset, ICH8M and a new wireless solution with 802.11n support. The new chipset will add official 800MHz FSB support, and thus Core 2 Duo processors released next year will be able to use the faster FSB. The Santa Rosa platform also introduces a new pin-out, Socket-P, for Core 2 Duo processors. Unfortunately that means you won't be able to use current Core 2 Duo and Core Duo processors in Santa Rosa based motherboards and notebooks." http://www.anandtech.com/printarticle.aspx?i=2808
It is an interesting write-up comparing core duo and core 2 duo and worth a look.

JD

 

Interesting but old. It is out and has been for long time.

 

I know the article is a bit old and that santa rosa is already out. However, even though it was speculating about the platform, it addressed the issue of upgrades directly and compares yonah (core duo) chips to merom (core 2 duo) chips at the same clock speed.
If you want something more recent, see:
http://www.anandtech.com/cpuchipsets/intel/showdoc.aspx?i=2985&p=1
and
http://www.xbitlabs.com/articles/mobile/display/santa-rosa.html

Jdev