The Brazos Review: AMD's E-350 Supplants ION for mini-ITX
by Anand Lal Shimpi on January 27, 2011 6:08 PM ESTPower Consumption: Better than Atom
Power efficiency was a big draw of Atom, but does AMD sacrifice any of that in order to deliver the performance it does with the E-350? To be blunt: no, not at all.
I don’t have any pico PSUs or anything super efficient readily available so don’t expect any of the numbers to be particularly impressive, but what they are is comparable to one another. I hooked up each one of the systems I’d been using to the same PSU and measured power in three conditions: idle, full CPU load (Cinebench 11.5) and while playing a 1080p H.264 video.
Pine Trail and the old ION platform consume just about the same amount of power at idle. The Athlon II system obviously draws more, in this case an increase of 17%. The E-350 uses less than 70% of the power of the Atom D510 system at idle.
Under load the Brazos advantage shrinks a bit but it’s still much lower power than Atom. While playing a H.264 you’re looking at ~83% of the power of an ION system, and 85% under full CPU load.
Say what you will about Intel’s manufacturing process advantage, it’s simply not put to use here with Atom. AMD’s E-350 is higher performing and uses less power than Intel’s 45nm Atom D510. Did I mention it’s built on a smaller die as well?
I wanted to isolate the CP...err APU and look at its power draw exclusively. I ran the same three tests but this time I’m not measuring power at the wall, but rather just power over the ATX12V connector directly to the CPU.
At idle the E-350 APU only requires around 3W of power. That’s actually not as low as I’d expect, especially given that Sandy Bridge is typically down at 4W when fully idle. AMD is apparently not being too aggressive with stopping clocks and gating when fully idle, at least on the desktop Brazos parts.
| Power Consumption Comparison | |||||
| ATX12V Power Draw | Idle | 1080p H.264 Decode | Cinebench 11.5 | ||
| AMD E-350 | 3W | 8W | 9W | ||
| AMD Athlon II X2 255 | 7W | 12W | 47W | ||
Under load, either full CPU or when using the video decode engine, APU power consumption is around 8 - 9W. By comparison, an Athlon II X2 255 will use 12W when decoding video (this doesn’t include the UVD engine in the 890GX doing most of the heavy lifting. The more interesting comparison is what happens when the CPU cores are fully loaded. The E-350 uses 9W running Cinebench 11.5 compared to 47W by the Athlon II X2.
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StardogChampion - Friday, January 28, 2011 - link
A low-powered mini-ITX board with 4-5 SATA III ports, maybe a eSATA (Hudson FCH supports 6 x SATA) port and PCI-e slot for adding a SATA controller card (even if it's x4 it's still better than PCI) for $100 has me thinking home server. I don't see a board out there that comes close to these features at this price. If you want a D510 board with 6 x SATA II you have to shell out $200. Take one of these E-350 mini-itx boards, put it in a Lian-Li Q08 case with a bunch of 2TB drives, Amahi/WHS/etc. and you've really got something. It's a waste of GPU but how do you beat it?And, for building friends/family/neighbors desktops to replace the big outdated tower sitting on the floor that they just use for surfing, email, MS Office: once this comes out I'll never build another big tower again.
fr500 - Friday, January 28, 2011 - link
Using mainstream games for this reviews make little sense. It would be better to show it with some good indie games at 720p, say super meat boy (won't run well on an i3 530's IGP or an 9300-ITX IGP for instance it needs good steady FPS to be playable).Maybe Braid, Trine, Torchlight.
I don't see many people using this for MW2.
ProDigit - Friday, January 28, 2011 - link
I would have preferred to see the E-350 compared to an Atom N550,especially with power consumption.I believe the N550 beats the crap out of the E-350 (power-wise). After all, I guess AMD wants to put this apu in netbooks, no?
LeftSide - Friday, January 28, 2011 - link
Does anybody know if bobcat is going to support ecc ram? I want to build a low power server with ecc ram.msroadkill612 - Friday, February 4, 2011 - link
I have read it doesntAmdInside - Friday, January 28, 2011 - link
Will it run Angry Birds?kenyee - Friday, January 28, 2011 - link
Wish you touched more on that...that's listed as a weakness, but nothing about whether anything this year will be able to decode 3D bluray movies...bjacobson - Saturday, January 29, 2011 - link
what are people using OpenCL at this point these days for anyways?spiked_mistborn - Saturday, January 29, 2011 - link
I agree with you geekfool. Where are the OpenCL or DirectCompute benchmarks (especially OpenCL since that is cross-platform and seems to be building steam)? This article does not feel complete without some type of GPU acceleration test since that is one idea that AMD has been pushing since we first started hearing about fusion. The idea was that the low performance of the cpu core on compute intensive workloads could be compensated for by shifting highly parallel workloads to the SPs. If I remember correctly Intel recently released OpenCL support for their CPUs, and there are also upcoming ARM based SOCs that will have OpenCL support.While OpenCL may not matter to everybody today, I think that in a couple of years any devices that are released that don't support it will be skydiving without a parachute.
Klimax - Saturday, January 29, 2011 - link
Just few things:What board with D510 was used and was it with latest BIOS?
I have noticed that after new BIOS is loaded on intel boards I get about ~20% increase in write and ~10% in read performance on SSD. Along with few percent on graphics benches. (Tested between October and January)
Could somebody here test it? (I used BLKD510MO as cheapest D510 board with 1GB DDR2 and Win7 x64 and cheap Kingston SSD)
This is somewhat missing IMHO.
Thanks.