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Intel announces energy-efficient quad-core processors that consume 50-watts of power

Intel today released two new energy-efficient quad-core Xeon processors for multi-processor servers. The new Intel Xeon L5320 and L5310 operate at 1.86 GHz and 1.60 GHz respectively. Energy-efficient Xeon models consume 50-watts of power, which translates to 12.5-watts of power per core. Intel’s regular quad-core Xeon 5300-series consume 120-watts of power.

Energy-efficient Intel Xeon L5320 and L5310 processors are nearly identical to their higher-clocked counter parts. The energy-efficient models have 8MB of total L2 cache, 4MB of shared L2 per pair of cores, as with other Xeon 5300-series models. Front-side bus of the Xeon L5320 and L5310 are clocked at 1066 MHz, similar to the normal Xeon E5320 and E5310.

Pricing for the energy-efficient Intel Xeon L5320 and L5310 is $519 and $455 in quantities of 1,000, respectively. Intel Xeon L5320 and L5310 processors are drop-in compatible with Intel’s Bensley server platform.

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Wow thats impressive !!
By ButterFlyEffect78 on 3/12/2007 4:59:16 PM , Rating: 2
Now imagine how low the upcoming 45nm in wattage would be at those speeds... hmmmm Im thinking 5 watts per core.. Anyone?

RE: Wow thats impressive !!
By Axbattler on 3/12/2007 5:08:31 PM , Rating: 4
That'd be great.. Improvement in CPU power efficiency is always good, but I'd like ATI/nVidia to follow suit foremost.

RE: Wow thats impressive !!
By smitty3268 on 3/12/2007 5:32:22 PM , Rating: 2
A 62.5% decrease in power seems unlikely from 45nm.

RE: Wow thats impressive !!
By HaZaRd2K6 on 3/12/2007 5:42:07 PM , Rating: 2
Slightly, yes. But we could conceivably see 9-10 watts per core (totaling 36-40 watts).

RE: Wow thats impressive !!
By theteamaqua on 3/12/2007 8:24:32 PM , Rating: 3
well yeah i do hope that ATI and nVidia follow what intel has been doing with Core 2, lower power consumption yet performance is better...

R600 can draw as much as 270W ... to be honest i dont think nvidia nor ATI will fix that, GPUs will keep eating more and more power

RE: Wow thats impressive !!
By theteamaqua on 3/12/2007 8:31:18 PM , Rating: 2
well by eating more power i mean when a new architecture come out, for example G80 on 80nm will definitely have lower power consumption than 90nm ones. but when G90 on 80nm or R700 on 65nm chances r the power envelop will rise again

RE: Wow thats impressive !!
By Hare on 3/13/2007 3:07:47 AM , Rating: 4
R600 can draw as much as 270W ...
Until we see actual measurements I won't believe these figures.

- Intel Core 2 Extreme X6800 (2.93GHz/4MB)
- 8800GTX
- Bells & Whistles
--> Load consumption: 230W (the whole machine)

I'm having a hard time believing that the R600 would have >double the power requirements.

RE: Wow thats impressive !!
By Hare on 3/13/2007 3:24:11 AM , Rating: 2
This was supposed to be a reply to the person above. Something is wrong with the comment system. Someone just posted to another article just because he had another tab open? Javascript problems with ID's?

RE: Wow thats impressive !!
By theteamaqua on 3/13/07, Rating: 0
RE: Wow thats impressive !!
By Hare on 3/13/2007 6:53:32 AM , Rating: 3
That measured power consumption in the Anandtech article is from the wall socket. Multiply that with the efficiency of the PSU (around 80%)

280W * 0.8 = ~230W

there is a reason why the minimum PSU for 8800 series is 450w

That "suggested power" is because people have ancient PSU's with minimal 12V lines. Old and cheap 600W PSU's can't even match a well designed 350W PSU (12V line amps are all that matters nowadays). It's just a safety margin for people with crappy PSUs. I've seen an FX60 + CF 2 x X1900XTX rig running just fine on a quality 380W power (power available from the 12V lines).

If 150W Pentium D had trouble keeping cool with big heatsinks, how do you think they'll cool down a 270W R600? I don't think R600 will eat much more than 150W. I could be wrong, we'll see...

RE: Wow thats impressive !!
By theteamaqua on 3/13/2007 2:36:04 PM , Rating: 1
well go ahead and try run R600 with X6800 with a 400W PSU and tell me how it is

besides u just mutiply .8 ... by not knowing the PSU's efficeincy

also try runing GForce 8800GTX with X6800 with a 300W PSU and tell me how well it overclocks

RE: Wow thats impressive !!
By Hare on 3/14/2007 2:53:07 AM , Rating: 2
PSU maker PR FUD sure works great.

Check out I know how PSUs work and I know what are realistic power figures. The 80% efficiency quess is optimistic. It also could be around 75% thanks to 115V grid. High end power supplies peak around 85% and usually can't exceed 80% efficiency with 50% loads.

As I said. I've seen a quality 380W power supply running a FX60 + 2 x X1900XTX (OC'd) without breaking a sweat. Power consumption is a lot smaller then people think. PSU makers lie just to sell those >600W PSU's.

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