What is Digg?32 Comments
- deanlowe, on 10/12/2007, -2/+17Overclockers don't care about Watts, they care about Celsius and MHz.
- pabster, on 10/12/2007, -4/+14Not really.
Core 2 still wipes the floor with the X2, and price-wise, the difference is very little. - Muncher, on 10/12/2007, -0/+9@BlackCow
Overclocking is all about increasing the MHz. That's what it is. - merreborn, on 10/12/2007, -0/+8"the measurement scheme they use includes the chipset and the RAM and hard drives and such."
Everything in their test systems was identical, except for the motherboard and the processor. Same ram, same drives.
Motherboard's not a very big power drain. So it's really a pretty fair comparison. - merreborn, on 10/12/2007, -0/+7Obviously, this article isn't aimed at overclockers.
Server admins don't care about MHz. They care about the heat/performance ratio, and the power/performance ratio.
The article does cover overclocking and heat later on, though. - HappyScrappy, on 10/12/2007, -2/+9Energy use to do a task is not quite a direct measure of CPU energy efficiency here, as the measurement scheme they use includes the chipset and the RAM and hard drives and such.
It's interesting to compare these results against anand's from a week ago. Anand did a lot more testing than just cinebench.
http://anandtech.com/cpuchipsets/showdoc.aspx?i=2889 - inactive, on 10/12/2007, -0/+6merreborn
Server admins don't care about any of these processors, we want lots of cores, and lots of cache, then we want performance per watt. - Llanowar, on 10/12/2007, -4/+10How original...
- KiTchMe, on 10/12/2007, -0/+4watts/performance is directly proportional to heat/MHz...More watts - more heat; less heat - more MHz - more performance (on the same CPU architecture)
- Lazybones, on 10/12/2007, -0/+2There will be a socket change for the AMD 4 core CPUs because they need more pins to cover all of the HT connections.
- BillyBlaze, on 10/12/2007, -0/+2Actually, you will be able to use an AM3 processor in an AM2 socket with DDR2 memory. Pretty much the only thing you won't be able to do is use an AM2 processor in an AM3 motherboard. If AMD sticks with this sort of compatibility in the future, it won't be that bad. Most people upgrade their CPU first, or everything at once, both of which are allowed.
http://en.wikipedia.org/wiki/Socket_AM3 - Stranger2001, on 10/12/2007, -0/+2I think you missed the memo saying every proc manufacturer is now extremely limited by heat output....
- bobcrotch, on 10/12/2007, -2/+4"I fried the P965 board while trying to flash the bios"
What a ***** tool, the AnandTech article is much better anyhow. - SobyOne, on 10/12/2007, -0/+1[/quote] AM3 CPUs will work in DDR2 AM2 boards. You have spread FUD and must repent. [/whatever]
Consider that DD3 is not currently controlled by AMD CPUs, consider that AM3 doesn't exist. This was a hypothetical scenario.
"The new architecture's integrated memory controller is believed to support both DDR 2 and DDR 3 - but not..." (http://www.reghardware.co.uk/2006/07/06/amd_socket_am3_compatibility/)
The technology does not yet exist.
"AMD has revealed that AM2 will accept AM2 or AM3 CPU packages" - just be prepared to have 8 RAM sockets... 4 for DD2 and 4 for DDR3.
This only indicates that MoBo Manufacturers will be able to purchase 1 socket part number for both AM2 and AM3. Reading further to "
The most recent AMD road map is also very clear to state AM3 "supports either DDR2 SDRAM or DDR3 SDRAM, but not on the same motherboard."
and you get a clear picture. (http://www.dailytech.com/article.aspx?newsid=3169&www.reghardware.co.uk)
DDR2 and DDR3 are not compatible technologies. That's why they're different packages. You should repent for making nonsense without logic.
Speech, Rhetoric, Logic, Geometry, Math, Music, Astronomy - What will you learn Today? - inactive, on 10/12/2007, -0/+1Edit, see BillyBlaze's comment and the wikipedia article.
- CompIsMyRx, on 10/12/2007, -6/+7It looks like the 65nm X2's will give the Core 2 Duo's a run for their money.
- Junkyarddawg, on 10/12/2007, -3/+4So, will these chips will have a new socket?
(I like AMD, I use AMD, I recommend AMD, but AMD's habit of changing socket at least once per year is wearing a little thin) - kill, on 10/12/2007, -0/+1@merreborn
"We're testing the AMD processors with a relatively low-power motherboard, because our other option on Socket AM2, the Asus M2N32-SLI Deluxe, had some problems (innately high power consumption... I used Intel's D975XBX2 mobo, which is fairly efficient but still has some additional auxiliary chips and expansion slots that our AMD mobo lacks."
So yes, the motherboard can make a huge difference. You can't use their results to compare the power drain on the chip because they are using a motherboard that uses more power then the AMD one. - OBKenobi, on 10/12/2007, -0/+1[quote]It looks like the 65nm X2's will give the Core 2 Duo's a run for their money.[/quote]
The upcoming e4300 is going to make it even worse for AMD. - HappyScrappy, on 10/12/2007, -0/+1The motherboard/chipset is a big power difference.
SgnDave:
I'm not saying you're wrong about what matters to people. However, that's not what the summary states. Additionally, if you know the motherboard is part of the power equation and you're going to rate the systems on it, it behooves you to find some motherboards which are optimized for power, and not for having 45 SATA ports. They didn't do any of this, and thus their tests don't help you choose a total system power usage, only between two examples. - OBKenobi, on 10/12/2007, -1/+2[quote]Socket Change = RAM Technology Change (e.g., AM3 = DDR3).
Since the memory controller is on the CPU, you don't want to try to control your DDR2 RAM with a DDR3 CPU.
Get over it.[/quote]
AM3 CPUs will work in DDR2 AM2 boards. You have spread FUD and must repent. - SgnDave, on 10/12/2007, -1/+2To the actual user, all that really matters is the overall power consumption. Whether one processor or the other is more efficient makes no difference if one has a power-hungry motherboard and the other takes very little power. Comparing the CPUs in a vacuum only matters to computer architects (think Ph.D). What matters for the buyer is how much power is actually taken once they get the thing put together.
- noseeme, on 10/12/2007, -4/+4Only took ***** forever.
- SobyOne, on 10/12/2007, -3/+3Socket Change = RAM Technology Change (e.g., AM3 = DDR3).
Since the memory controller is on the CPU, you don't want to try to control your DDR2 RAM with a DDR3 CPU.
Get over it. - phabio76, on 10/12/2007, -0/+0am3 socket?
- shockertwin, on 10/12/2007, -1/+0@blackcow
Your core duo hauls ass cause it uses a different instruction set than the different P4. More effecient instruction set = less mhz needed to complete the same task.
So YES, it is about mhz. The only difference is how the instruction is being completed, and how fast the answer / question is being transfered between the pieces on the board. In many cases, the motherboard is a huge problem, especially with low bus speeds. My guess is your core 2 duo has double the bus speed as yoru single core counterpart in mhz (But i though mhz didnt matter...). Then the more efficient instruction set complete yoru instructions faster and send them away. Increasing the mhz on yoru cpu merely makes the process of calculation faster, but doesnt change how it is done. So yes mhz does matter. Pit your core 2 duo against an overclocked one at 3.5 ghz and soo how yours stacks up, my bet is: it wont. - Junkyarddawg, on 10/12/2007, -1/+0What I'd like to see, is some forethought.
AMD surely knows years in advance how many pins upcoming processors will need. I'd greatly prefer if they designed sockets with upgrade-ability in mind. The way they're doing it now, with _at least_ one new socket per year (and discontinuing their old), is IMO silly and just shows poor planning.
Because surely it can not benefit AMD to force their customers to change motherboard every time they want to upgrade the processor? - GT35R, on 10/12/2007, -4/+2not necessarily.
- goingpostale1, on 10/12/2007, -3/+0@ Pabster
Not for overclockers, the OC (Intel) depends on the quality of the mobo. Then you have to match the ram and fsb (bigger impact on performance on Intel Platforms). The performance for non overclockers is worth it and even with the overclock the Core 2 Duo could still a better performer, but the lack of onboard memory controller isn't worth it. I'm waiting for the K8L, then I'll decide. Oh and the low multis on the Core 2 Duo isn't exactly encouraging. On AMd platforms the matching of HT to Ram matters less because the HT is already waaaay faster then the ram to begin with (it being on the chip and all). Give AMD some time theyll be back in the game, this is similar to when Intel claimed to be first with a dual core chip and it was just two single cores on one chip. - noseeme, on 10/12/2007, -4/+1You are not a beautiful or unique Tom Dickson. You are the same decaying organic matter as everything else.
See? It's as stupid as quoting Fight Club. - BlackCow, on 10/12/2007, -9/+6Ah not the MHz myth again! Its not all about the clock speed people, my Intel Core Duo runs at 1.86 GHz and it hauls ass compared to my 2.9 GHz single core. There is much more to it then just MHz.
- pennyfan87, on 10/12/2007, -30/+2But will it blend?
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