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4Ghz Core 2 Duo vs M.A.M.E. 0.120 (benchmark results)
taz-nz:
--- Quote from: divemaster127 on February 26, 2008, 03:52:04 pm ---Quick question why is the 8400 cheaper than the E6850 on newegg.
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Warning Geek stuff!!
Because the (Wolfdale) E8#00 series Core 2 Duos are manufactured using 45nm process they, the transistors they are made of are smaller than those found in the E6#50 series which is manufactured using a 65nm process, so while the E8400 has more Cache memory and thus more transistors in it than an e6850, it's actually has a small die 107 mm˛ compared with the e6850s 143 mm˛, Now this effects cost for three main reasons, because the Core 2 Duo are manufactured on the same 300mm silicon wafers that cost the same no matter what CPU you make with them, the smaller the die the more you CPUs you can make from one silicon wafer and thus the cheaper they are, also a smaller die means they can shuffle them arround a on the silicon wafer more to cut down on wasted space that can't be used around the edges of the silicon wafer this reducing costs, all Silicon wafers will have a few defects in them at the end of the manufacturing process, die that a layed down over these areas will be defective and thus end up as waste, now the small dia is less likely to have a defect in it that a larger die, and there is less wasted silicon when a small dia is defective. These plus a host of other things mean Intel can produce the E8400 a lot cheaper than they can an E6850 thus the price is lower, also there are market forces at work to.
I could have just said they are small so they are cheap, but where's the fun in that. ;D Oh and before anyone asks why they make square chips on a round wafer, it's because each layer of the chip is added to the center of the wafer as a liquid as the wafer is spun at speed, this makes for a near perfect application of the liquid accross the whole surface of the Silicon wafer.
--- Quote from: u_rebelscum on February 26, 2008, 06:00:55 pm ---'Cause it's "Out Of Stock", so you can't buy it anyway? ;D
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He's right too, lots of online stored do it with new or very popular products that are unavilable, they dump the price to get people to their site, hoping once there they will buy something else.
BASS!:
Allrighty, Im back with the final update. This whole pc cost $600 in brand new parts and it screams. I ran the benchmark for around 24hrs and it is stable as a mule. Even with the full torture test running on both cores (which means processor usage is pegged at 100%) it stayed a solid 65c-66c. I am now running idle, because im bored of prime numbers, and my temp is sitting steady at 42c-44c. Once I re-download my chds and roms ill do some benchmarks to see what this mammer jammer can do.
*on a side note, has anyone in the community thought to build a program similar to 3d mark that benches your system and automates frame rate tracking based on the most troublesome mame games? I'd love to help, but I don't know if I have the patience to sit and test every beefy game.
ids:
--- Quote from: taz-nz on February 26, 2008, 06:33:34 pm ---
--- Quote from: divemaster127 on February 26, 2008, 03:52:04 pm ---Quick question why is the 8400 cheaper than the E6850 on newegg.
--- End quote ---
Warning Geek stuff!!
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Correct me if I am wrong, but as I understand it, in this case, they were able to reuse a lot of the fabrication stuff. Often when going to a smaller die, there is a huge investment in equipment that needs to be recovered.
Jdurg:
Another nice thing that we've all seemed to find out about recent Intel chips is that their ability to produce CPUs that can run at a high speed is phenomenal. They are doing such a good job at making chips that can run at high speeds that they are forced to take some of these high-speed CPUs and lock them down to a lower default speed in order to fill demand for that CPU speed. Therefore, we are able to overclock the living hell out of them and get great CPU speeds on our CPUs. For all intents and purposes, Intel would have loved to have sold those CPUs as a high speed variety, but not everybody out there can afford those chips and they had to "lower them down" to meet demand. :applaud:
BASS!:
If they unlocked the multiplier on this chip, god only knows how fast we could get it going. Toms hardware did a pretty good writeup about what this chip can do. http://www.tomshardware.com/2008/02/19/wolfdale_on_steroids/
Back in the day you could go crazy with the overclocking, but any test required the usage of pretty extreme cooling. Their test sample never got that hot, and they even ripped the cover off the chip to see if they could cool it better, but that did not work. It seems as if they built in a cap in the fsb speed.
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