Difference between T5870 and T7250

I notice Dell have a Vostro 1700 with the T5870 CPU 2.0ghz, what is it I can't find any reference to it on google and how does it compare to the T7250

 

I never heard of the T5870. The highest T5xxx-series i heard of was T5470 which i have (1.6ghz) the only think i could think is that it lacks VT.

 

It must be a T5470 and its an error on the listing, it says it is a 2.0ghz CPU which must be wrong.

 

Is this on ebay or something? The 2.0ghz chips that i know of in that laptop will be either the 7300 (2.0ghz 4mb) or 7250 (2.0ghz 2mb)

 

Its feasible it could be a new model, if i am right the t5x50's and 70's are oem models which usually have some missing features. Info on these models is very thin on the ground.

 

Have a look on the Dell UK site http://tinyurl.com/3b36rd

 

Strange, never heard of a T5870.

 

Neither has Intel when you search their site, and there are no search results returned in google either, its most likely the T5470 1.6ghz and they've ****ed up the spec, bit misleading to buyers methinks.

 

Actually i think its the 7250 without VT.

 

Yeah your right, there are is actually a T5670 as well, HP have a few laptops with the T5670 and T5870.

 

How come Intel doesn't list these chips on their website?

 

I am similarly looking to buy a Vostro 1700 and had exactly the same question, so I emailed Intel and they replied with the following:

***************************************
Thank you for contacting Intel(R) Customer Support.

I understand that you are looking for the differences between the Intel(R) Core(TM) 2 Duo processor T5870 and the Intel(R) Core(TM) 2 Duo processor T7250.

For information on the Intel(R) Core(TM) 2 Duo processor T7250 please visit the following website:
http://www.intel.com/products/processor_number/chart/core2duo.htm

However since the Intel(R) Core(TM) 2 Duo processor T5870 is an Original Equipment Manufacturer (OEM) processor we do not have information about this processor, this is because our website has information only about retailed boxed processors.

For information regarding OEM processors like the Intel(R) Core(TM) 2 Duo processor T5870 please contact the place of purchase or the system manufacturer.
***************************************

I spoke to 2 people at Dell and neither could tell me the difference, just saying that the T7250 was faster without being able to give me any more details.

The laptop I need doesn't need to be particularly high spec so I think at £75 cheaper the T5870 is the better bet for me.

Jonny

 

Did anyone find out the difference between the T5870 and the T7250? Both seem the same specs. Are they pretty much the same but the T7250 built on a smaller micron technology? I'm also looking to order one but want to confirm before I do!

Edit: Look very similar but a few differences.....

Looking on Wiki:
http://en.wikipedia.org/wiki/List_o...22Merom-2M.22_.28standard-voltage.2C_65_nm.29 (2/3 of the way down, ' "Merom-2M" (standard-voltage, 65 nm)'
http://en.wikipedia.org/wiki/Intel_Core_2 (2/3 of the way down, 'Synchronous memory modules')

Core 2 Duo T5850, 2167 MHz, 2048 KiB, 667 MT/s, 13x 1.0375 - 1.3 V 35 W Socket P March 2008 OEM

Core 2 Duo T7250, 2000 MHz, 2048 KiB, 800 MT/s, 10x 1.075 - 1.175 V, 35 W Socket P September 2, $209

Looks like they're both Merom-M2 standard voltage, 65 nm

Does anyone know what the performance difference is, as I don't really understand that!

On the quote I got from Dell it says the T5870 FBS is 800mhz, but Wiki says it's a 667 running on a 13x multiplier to get the 2ghz. Presumably if the T7250 is an 800 running on a 10x the T5870 technically runs hotter and uses more power for the equivalent clock speed?

What about memory speeds? Will they both have similar memory speeds?

Thanks

 

the "70" on the end of T5870 denotes that it is a Santa Rosa Chip meaning it has an 800mhz FSB, I believe the previous poster who said it is a T7250 w/o VT (virtualization technology, which u prob. don't need) is correct as VT is the feature that separates 5series from 7series (along with 7's generally being higher clocked/having more cache)

mem speeds will be equal

 

Ah, ok, thanks. What does Virtualisation TEchnology actually mean to the lay man?

 

Hi, couldn't figure out the difference either - it might be down to VT technology which would also mean T7250 is faster and hopefully much more than T5870 version - why am I making this conclusion is : the latter one costs £75 less at Dell.co.uk with same laptop config. So if you are about to spend £75 extra on T7250 u should get much more processing power. ( at least in theory )

If you are on low budget stick to T5870.

 

No, most have VT disabled anyways. I would not spend 75 more to get the 7250. It doesnt make sense. Just because something is more money doesnt mean its better or worth it to upgrade. If i were to upgrade it would be to one with more cache, else stick with the cheaper processor.

 

I agree, and Dell's pricing is the last thing anyone should use as a guide to value! They charge obscene and inconsistent amounts for upgrades (I've seen them charge £400 to upgrade the CPU from bottom to top spec on one machine, despite that top end CPU being available to buy on its own for £250!)

I paid more in the end anyway.... went for a Vostro with a T9300; 2.5ghz and 6meg L2 cache!

 

Okay, I have a vostro 1510 with T5870 and I've verified that it has the same specs as they mentioned on their website.

 

So (I'm new here), why is the 7250 on the market? It must be here for some reason, if not just to trick us consumers? I'm looking at buying a HP where these are the only options.

 

T5870 does exist -> it is a Penryn processor with only 2 mb of L2 cache and no VT support. But it has SSE4.1 coding like the rest of the Penryn processors. http://ark.intel.com/Product.aspx?id=37034

T7250 (any intel cpu with Txx50 has some sort of crippled features) is a merom with 2 mb of L2 cache and supports VT. http://processorfinder.intel.com/details.aspx?sSpec=SLA3T