Everyone keeps talking about Merom and Yonah, will these still be considered Pentium M's?
And I feel stupid for having to ask this, but what is x86?
And I feel stupid for having to ask this, but what is x86?
All points except Apple's own instructions to developers - which say that there will be Dothan systems.... (yet another link to a post I wrote almost 2 months ago)gregoryp said:Why torture yourselves? Might as well be a Xeon for that matter. No, all points lead to Yonah...good old 945M.
"Merom" and "Yonah" are Intel codewords for two architecturally distinct descendants of "Banias" and "Dothan".EricNau said:Everyone keeps talking about Merom and Yonah, will these still be considered Pentium M's?
"x86" is the name for the ISA (Instruction Set Architecture) of the 32-bit Intel/AMD CPUs. It describes the binary machine language (the "assembly language") of the Intel compatible chips.EricNau said:And I feel stupid for having to ask this, but what is x86?
AidenShaw said:"Merom" and "Yonah" are Intel codewords for two architecturally distinct descendants of "Banias" and "Dothan".
"Banias" was the original Pentium M (the CPU component of the Centrino group of chips). "Dothan" is the current Pentium M, done on 90nm instead of 130nm and with double the cache and some other improvements.
Yonah/Merom will definitely be in the family of Pentium M systems, so you wouldn't be wrong to loosely group them as Pentium M systems.
Whether Intel markets them as "Pentium M" or "Pentium M2" or "Pentium M²" or something new is up to Intel's marketing, and often isn't known until the product starts to ship.
Intel codenames, however, often give more information than the marketing name - the marketing name changes less frequently than the chip design. Remembering the codename can be useful long after the marketing name is chosen.
For example, if I have a Pentium II, it's pretty significant whether it's a Klamath or a Deschutes - although the marketing name "Pentium II" is the same (http://www.pcguide.com/ref/cpu/fam/g6PII-c.html).
"Banias" and "Dothan" are both "Pentium M" chips, but Dothan is significantly better in a number of ways.
"x86" is the name for the ISA (Instruction Set Architecture) of the 32-bit Intel/AMD CPUs. It describes the binary machine language (the "assembly language") of the Intel compatible chips.
The P3 (i386 or 80386) chips were the first generation in this family, and defined the basic architecture that is called "x86" today. It has evolved slightly through the P4 (i486), P5 (Pentium or i586), P6 (Pentium Pro/Pentium II/Pentium III or i686) and P7 (Pentium 4 (http://en.wikipedia.org/wiki/Intel_P7)), and suffered through a series of vector extensions (MMX/SSE/SSE2/SSE3)).
On this timeline, the "Pentium M" is has gone back to the P6 lineage with some P7 features. Yonah/Merom are sometimes called "P8" chips (http://en.wikipedia.org/wiki/Intel_P8).
This sounds like a lot of incompatible change, but in truth nobody really cares about writing new software that is compatible with 10 year old chips - so today "x86" usually is the same as saying "P6 or newer". Also, the changes are forwards compatible - a P6 or P7 chip will execute P3 code exactly correctly. (A P3 chip, however, may choke on code that has P6 "improvements".)
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Beyond x86 is the 64-bit extension to the x86 ISA called by various names. I'll call it x64, since that's the name that both Sun and Microsoft use (if Macnealy and Gates agree on something, go with it!). Other names are EM64T (Intel), AMD64 (guess), and x86_64 (Linux).
x64 extends x86 to make the registers wider for 64-bit operands and addresses (similar to the way that 64-bit PowerPC makes the registers and address wider).
Unlike PowerPC 64-bit, however, x64 doubles the number of integer and vector (SSE) registers available to the compiler. This is why, unlike PPC 64-bit, x64 is often somewhat faster than 32-bit x86 - the extra registers mean that more data can be kept in high-speed register memory and fewer exchanges between registers and cache/RAM need to happen.
(BTW, no question is stupid.... I hope that we're all here to help people understand what's out there, regardless of our personal biases.)
SmegFirk said:I think a lot of Mac users will be suprised at how well osx runs on x86 machines. I've played around with the OSX86 on my desktop pc which is a SFF with a 1.8ghz Pentium M in it. This 'release' has been hacked about and fudged to work with all sorts of generic pc's that it was never intended for. It'll keep up the an imac.
I may be wrong but i feel a lot of people who (quite often rightly) bash windows have unfairly transfered this 'hate' on to x86 hardware.
I'm not sure what you mean by this. Intel is not going to supply Apple with special Apple only processors. They will be the same processors that will be in advanced Windows Operating System computers as well. According to the newest presentation on Yonah I witnessed last Saturday at the Portable Media Expo, over 200 computers are in design that will use this processor. What Apple will add is other chips, bus architecture and OS X. Intel might be making support chips for Apple that are of Apple design.bdkennedy1 said:Anyone that thinks that a normal Intel processor is going to be involved is nuts when Apple's new computers arrive.
gregoryp said:Why torture yourselves? Might as well be a Xeon for that matter. No, all points lead to Yonah...good old 945M.
You radically exagerate how much Apple will pay for each Yonah processor. Intel is likely to be giving Apple an outstanding discount as part of the deal to make the family switch from PPC to Intel.generik said:The Yonah? You give Apple way too much credit.
Considering that Apple loves to make a 20% margin on everything, on a $500 Mini it will probably be $100 of gravy for them. What are the odds that they will spend $290 on a CPU from the new line, and build the rest of the computer (including the harddrive, and bluetooth, and airport extreme) for only $100?
Not very likely.. perhaps if Apple were less greedy about their own 20% cut might it be possible.
Multimedia said:There is no way Apple is putting Celerons in any MacIntels.
Multimedia said:You radically exagerate how much Apple will pay for each Yonah processor. Intel is likely to be giving Apple an outstanding discount as part of the deal to make the family switch from PPC to Intel.
There is no way Apple is putting Celerons in any MacIntels.
Multimedia said:You radically exagerate how much Apple will pay for each Yonah processor. Intel is likely to be giving Apple an outstanding discount as part of the deal to make the family switch from PPC to Intel.
There is no way Apple is putting Celerons in any MacIntels.