Several questions for R4000

Alright, several questions:

1. Could someone tell me the cores (and max. temp) of the following processors used in the R4000?

a. Athlon 64 3500+ (2.2 Ghz, 512 kb)
b. Athlon 64 3800+ (2.4 Ghz, 512 kb)
c. Athlon 64 4000+ (2.4 Ghz, 1 mb)

2. These must be desktop Athlons, so the max. wattage is around 90 W, and voltage varies with the core. How do these compare with the Turions and P-M's in performance, battery life, and heat?

3. Do these processors support SSE3? If not, will it have a major effect on performance?

Thanks!

 

They're all based on the 130nm Winchester core, so they won't have SSE3 enabled. They should provide better performance than the Pentium M or the Turion processor, but these processors will generate alot of heat and eat up battery life fairly quickly (though not as much as a Pentium 4).

 

HP will have to switch over to 90nm cores w/SSE3 soon, simply because AMD has completed their transition to 90nm and isn't building 130nm CPUs anymore. The 90nm chips are 62W max, IIRC.

Note that AMD's power management is excellent, very unlike the P4, so battery life in average use is very good (3-4 hours with a 12 cell battery). You can drain the battery fairly quickly if you sustain full CPU load, though undervolting does wonders in that situation.

 

I have a 90nm AMD 3500+ (Venice Core) and it typically runs at 83watts. But it is for a desktop...

 

Huh? Where'd you get that 83W figure?

 

I don't know about the others for sure, but I know the 4000+ is a ClawHammer core.

 

How soon (do you think) will HP switch to the 90nm cores? And how did you get the 62 W? That's only for Mobile A64s, and the Mobile A64s only come in 3000, 3200, 3400, and 3700 (no 3500, 3800, or 4000).

 

Going from memory.. and maybe I was thinking of the Mobile-class S754 chips. If anything 62W sounds a bit high for the 90nm Venice and San Diego cores, but AMD sets the TDP specs on the high side. They haven't updated the Thermal Data Sheet on their website since last October. A 90nm single-core A64 running 1.4V core will run no worse than a 130nm A64 running 1.4V core, probably better. I had to double-check the Venice-core 3000+ in my parents' Shuttle SFF box yesterday because the temperature-controlled fan was running so slowly. Turns out that it's set to run at 1,000 RPM when the CPU is 30C or below. It spends most of its time at 1,000 RPM. Mind you, I'm not undervolting that machine, it's just using the standard Cool 'n Quiet power management. (BTW: 128MB fanless GeForce 6200 cards work exceptionally well in SFF machines.)

Dunno when HP will run out of 130nm cores. I should think that you'll improve your chances of getting a 90nm chip by ordering direct from HP.