[gentoo-user] Re: new machine : (1) which CPU ?
On 22/07/12 06:18, Alecks Gates wrote: On Sat, Jul 21, 2012 at 7:33 AM, Nikos Chantziaras wrote: On 20/07/12 10:24, Philip Webb wrote: I plan to build a new machine in the next few months: it wb for regular desktop use, but performance is as important as price. A quick look at what was available in April suggested an Intel Ivy Bridge i7 ( 22 nm ) ; Phoronix said it works with Kernel 3.2 + an Intel Z77 mobo (I usually buy ASUS) & that power/watt was excellent. The best performance for money is the i5 2550K CPU. If you want the integrated graphics because you don't have an actual graphics card, you can go for the 2500K. This is a Sandy Bridge CPU. I normally don't recommend the Ivy Bridge ones because they run hotter, so changing the clock multipliers isn't as fun as with Sandy Bridge. Actually according to the link Florian linked here[1], AMD is doing extremely well regarding price/performance. Unless you want a Celeron or a Pentium. i5s do rate up there, though... these tests are also from Windows. [1] http://www.cpubenchmark.net/cpu_value_available.html I mean performance that doesn't suck :-P
Re: [gentoo-user] Re: new machine : (1) which CPU ?
On Sat, Jul 21, 2012 at 7:33 AM, Nikos Chantziaras wrote: > On 20/07/12 10:24, Philip Webb wrote: >> >> I plan to build a new machine in the next few months: >> it wb for regular desktop use, but performance is as important as price. >> >> A quick look at what was available in April suggested >> an Intel Ivy Bridge i7 ( 22 nm ) ; Phoronix said it works with Kernel 3.2 >> + an Intel Z77 mobo (I usually buy ASUS) & that power/watt was excellent. > > > The best performance for money is the i5 2550K CPU. If you want the > integrated graphics because you don't have an actual graphics card, you can > go for the 2500K. > > This is a Sandy Bridge CPU. I normally don't recommend the Ivy Bridge ones > because they run hotter, so changing the clock multipliers isn't as fun as > with Sandy Bridge. > > Actually according to the link Florian linked here[1], AMD is doing extremely well regarding price/performance. Unless you want a Celeron or a Pentium. i5s do rate up there, though... these tests are also from Windows. [1] http://www.cpubenchmark.net/cpu_value_available.html
Re: [gentoo-user] Re: new machine : (1) which CPU ?
Am Samstag, 21. Juli 2012, 15:33:05 schrieb Nikos Chantziaras: > On 20/07/12 10:24, Philip Webb wrote: > > I plan to build a new machine in the next few months: > > it wb for regular desktop use, but performance is as important as price. > > > A quick look at what was available in April suggested > > an Intel Ivy Bridge i7 ( 22 nm ) ; Phoronix said it works with Kernel 3.2 > > + an Intel Z77 mobo (I usually buy ASUS) & that power/watt was excellent. > > […] > > I don't want to pay a premium price for a bleeding-edge device > > which wb available at a more normal price a few months later. Those two statements are a bit contradicting. Generally, I wouldn’t buy an i7. First, those high-end components tend to be comparatively more expensive than their smaller siblings (regarding bang for the buck). Okay, it’s a quad with HT instead of “just a quad” (oh my, the times we live in), but secondly, if it’s *mostly* a desktop and occasionally performance-critical, I think it is also a waste of power. More power means more heat means more fan noise. > > I wb buying it from the local store (Canada Computers), not on-line. > > > Does anyone have thoughts or advice ? A friend of mine built a new machine recently. I too am planning on doing this once I got the bucks (hopefully) in a few months. So we picked components together, based on recommendations of an “efficient home-brew PC” article in computer magazine c’t. We know that Intel is more expensive, but also less power-hungry and known to work excellent both with Linux and with other components. And my friend believes that the Intel graphics drivers are still superior from a FOSS standpoint (he had an ATI in his old system). Using the comprehensive Wikipedia articles on Ivy Bridge¹ and LGA1155², we decided for the biggest i5 (3570K, ~220€), as it has the bigger of the two HD Graphics chips (external Graphics were not on the shoping list). This new baby built GCC in 12 minutes and a bit. First he wanted an Intel board, but because those don’t have VGA anymore, he went for Gigagybe. He was building a big tower ATX system, and so chose the Z77 (around 100€). I, however, am planning for something more modest, a cute mATX system with medium power. Right now I’m planning on a B75 board. It has all *I* need and is considerably cheaper (70€). I think I may also take the smaller i5 that comes with HD4000, the 3475S, which is around 25€ cheaper. But even then, it is still a beast when compared to my Core 2 Duo laptop which has to run permanently throttled due to its ageing heat spreader. > This is a Sandy Bridge CPU. I normally don't recommend the Ivy Bridge > ones because they run hotter, so changing the clock multipliers isn't as > fun as with Sandy Bridge. Yeah, according to the aforementioned Wikipedia article¹, they changed the heat spreader material inside. However, the 2550K you recommended has a TDP of almost 100W, whereas Ivy Bridge maxes at 77W. How much those figues are to be taken as real-world values is of course something else. A nice improvement of Ivy Bridge in my view is its integrated USB3 controller, which, according to some tests, is considerably better than the patched-on solutions of Sandy Bridge boards. And if you don’t want a dedicated graphics card but still want some GPU power, that’s of course another plus for Ivy. Hm... perhaps one can use the best of both worlds and use a Sandy CPU ond an Ivy board? The other way around would work with a BIOS upgrade. Footnoty stuff ¹ http://en.wikipedia.org/wiki/Ivy_Bridge_(microarchitecture) ¹ http://en.wikipedia.org/wiki/LGA_1155 -- Gruß | Greetings | Qapla' Please do not share anything from, with or about me with any Facebook service. “Microsoft isn't evil, they just make really crappy operating systems.” – Linus Torvalds
Re: [gentoo-user] Re: new machine : (1) which CPU ?
2012/7/21 Nikos Chantziaras : > On 20/07/12 10:24, Philip Webb wrote: >> >> I plan to build a new machine in the next few months: >> it wb for regular desktop use, but performance is as important as price. >> >> A quick look at what was available in April suggested >> an Intel Ivy Bridge i7 ( 22 nm ) ; Phoronix said it works with Kernel 3.2 >> + an Intel Z77 mobo (I usually buy ASUS) & that power/watt was excellent. > > > The best performance for money is the i5 2550K CPU. If you want the > integrated graphics because you don't have an actual graphics card, you can > go for the 2500K. For those don't want an integrated graphics, buy Xeon E3-123? serise CPU. the same price as i5 2500K , but you got 8 thread :) > > This is a Sandy Bridge CPU. I normally don't recommend the Ivy Bridge ones > because they run hotter, so changing the clock multipliers isn't as fun as > with Sandy Bridge. > >
[gentoo-user] Re: new machine : (1) which CPU ?
On 20/07/12 10:24, Philip Webb wrote: I plan to build a new machine in the next few months: it wb for regular desktop use, but performance is as important as price. A quick look at what was available in April suggested an Intel Ivy Bridge i7 ( 22 nm ) ; Phoronix said it works with Kernel 3.2 + an Intel Z77 mobo (I usually buy ASUS) & that power/watt was excellent. The best performance for money is the i5 2550K CPU. If you want the integrated graphics because you don't have an actual graphics card, you can go for the 2500K. This is a Sandy Bridge CPU. I normally don't recommend the Ivy Bridge ones because they run hotter, so changing the clock multipliers isn't as fun as with Sandy Bridge.
