64 bits, Turion X2 or Core 2 Duo?

Hi, I know C2D blows the X2 out of the water in 32 bits, but I haven't seen any 64 bits benchmarks about those two in 64 bit environment. I read somewhere that the X2 performs a lot better in 64 bits while the C2D performance stays pretty much the same. This could be because AMD have worked with 64 bits longer, or any other reason I don't know right now. I'm looking for any info or benchmark related to any of those 2 CPUs in 64 bits performance.

Specifically, I'm between the X2 TL-56 1.8GHz or the C2D 5300 1.73GHz for a new laptop running 64 bit Vista Ultimate. Any help, THANKS!

Also, the C2D should run cooler and with better battery savings right?

 

I think the turion your looking at is also 65nm like the C2D so that will be a per. leap
I dont know about the 64bit though

 

go with the core 2 duo. in my time, i've had better experience with the intel processors. but I do think the AMD's use less battery. gl

 

Intel C2D use less power. Better w/heat and battery.

 

"Blows out of the water" is a bit of an overstatement. On benchmarks that fit in the massive L2 caches that Intel uses to compensate for their lack of an integrated memory controller, yes. Otherwise, C2D is generally a bit faster... until you look at price.

The 65nm Turions aren't any faster than the 90nm ones. It's just a die shrink. Power efficiency is a bit better though. The TL58 is always 65nm. The TL56 could go either way. All Turions coming off the fabs are 65nm now but it'll take a while for all the 90nm's to work their way out of the supply chain.

The really nice thing about AMD notebooks is that they never have Intel GPUs. Most have ATI (now part of AMD) or NVIDIA, both of whom make very good integrated GPUs. Not having to pay the Intel marketing tax is nice too. The GPU has a far bigger impact than AMD vs. Intel.

 

Is there a price difference between the two laptops you are considering and can you post specifications and/or links of the laptops?

Also i recommend that you fill out the FAQ and post it in the "What notebook should I buy" section of the forum.

 

You are 100% correct.

 

Currently I'm looking at... hmmm... 3 laptops , all from HP
1. HP Pavilion dv2419us
Turion X2 TL-56 1.8GHz
2GB RAM
Nvidia 6150 Go graphics
6-cell battery
$849.99 after rebates in CircuitCity

2. HP Pavilion dv2500t, customized in HP.com
C2D T5250 1.5GHz
1GB RAM (planning to upgrade later to 1GB x2)
Intel Graphics Media Accelerator X3100
High capacity 6-cell battery
$816 after using online coupon

3. HP Pavilion dv2000t, customized in HP.com
Core Duo T2450 2.0GHz (If I decide to give up 64 bits Vista)
1GB RAM (also planning to upgrade later)
Nvidia GeForce 7200 Go
High capacity 6-cell battery
$756 after coupon... but for some reason now is saying invalid coupons... maybe they ran out of the deal?

 

Im using the T7300 C2D and have 64bit Vista Ult installed...its wonderful.

 

Thats a very good explanation.

 

What brianstretch said.
Also, you're right, AMD's CPU's gain a bit of performance (10-15% or so) when running in 64-bit mode, where Intel's perform just about the same as in 32-bit mode. So the performance difference is smaller, but generally, a C2D will probably still be faster.

 

Considering the Core 2 model is cheaper (not sure about the coupons, though), it would only make sense to go with one of them.

Core 2 are the superior chips, and at a lesser price than AMD, it's all too easy of a decision.

 

But there not, the C2D has half the RAM so to match will end up costing more but I think a good value because CPU and IGP better. But the last core duo has the fastest CPU and a dedicated GPU that is better than the other and cheaper even after the RAM upgrade to match the 2GB, but is not 64-bit. I would buy one of the Intels better GPU's on these two, but which one? I would get the core duo if I did any light gaming if not the C2D, sorry but on this one AMD is out.

 

For a lot of things, the C2D will win. For a few things centered on numerical processing (FPU intensive stuff) the Turion can eat the C2D's lunch. But it's not so many things.

The C2D can run cooler but doesn't have to.