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Why i7 Is Better Than i5?
- Thread starter kevhui
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http://www.brighthub.com/computing/hardware/articles/48391.aspx
http://www.google.com/search?hl=en&client=safari&rls=en&q=i5+vs+i7&aq=f&oq=&aqi=g10
i7 supports 8 threads (hyperthreading), while the i5 supports only 4 threads, for example.
There is also: http://www.intel.com/products/processor/corei7/mobile/techdocs.htm
and
http://www.intel.com/design/corei5/documentation.htm
And there is MRoogle (my sig), for looking for many, many, many, many, mayn, many, many, many threads about this.
http://www.google.com/search?hl=en&client=safari&rls=en&q=i5+vs+i7&aq=f&oq=&aqi=g10
i7 supports 8 threads (hyperthreading), while the i5 supports only 4 threads, for example.
There is also: http://www.intel.com/products/processor/corei7/mobile/techdocs.htm
and
http://www.intel.com/design/corei5/documentation.htm
And there is MRoogle (my sig), for looking for many, many, many, many, mayn, many, many, many threads about this.
Two physical cores are better than one physical core HyperThreaded for two virtual cores. However, two physical cores are not better than two physical cores HyperThreaded for four virtual cores.
i7 is better than i5 because marketing says so 
and i can predict the future...
i9 will be better than i7
i5 better than i3
and i can predict the future...
i9 will be better than i7
i5 better than i3
i5 does not support hyperthreading while the i7 does (hyper-threading = 2 execution threads per core, in place of 1)
Core 2 Quad does not have a level-3 caching (read a bit about cache levels if you're not clear on how L1, L2 and L3 cache differ from one another). But from what I remember from my schooling: bigger cache = harder to manage and can become ineffective (that's why L1 cache is so small but darn fast, while L3 is bigger but slower)
also, i5 and i7 don't have a FSB so some of the memory communication overhead has been eliminated (since it's built in to the CPU now)
+1
the days of cache size and clock speed are long behind us. the paradigm has shifted to multi-threading and memory management.
nope, no i7's will be in retail stores - only base i5's
simply because it's a BTO option for the i5 (which you already pointed out)
maybe the the future, but not now at least
Here is a good thread to read: The i5 doesn't have Hyper-threading and only has 4 cores, i7 does and has 8
what a miss-leading title...
just to clarify: they both have 4 cores - but with hyper-threading the i7 has 8 execution threads (or virtual cores I suppose) while the i5 have 4 execution threads
I agree, the title sucks. However other members posted good info that is worth reading and will be rehashed in this one.
These benchmarks from Barefeats should answer the question of "which is better?"...
http://www.barefeats.com/imi7.html
http://www.barefeats.com/imi7.html
I was told that it will not be sold in stores. I however can not imagine them not selling it in stores. Don't most of us walk into the apple store wanting the best. I want the best so I have to wait 2 weeks?
I think this article (previously linked to by spinnerlys) provides a pretty good comparison of the two. It seems that most people won't really notice the difference between i5 and i7, but if you're working with video a lot, you will.
One thing I've not been able to find anywhere is a good list of programs that utilize hyperthreading. I'm leaning heavily toward the i5, but if I was to be assured that the Adobe CS Design suite (Photoshop, Illustrator, InDesign, etc.) was going to make use of HT in CS5, I would seriously consider going with the i7.
One thing I've not been able to find anywhere is a good list of programs that utilize hyperthreading. I'm leaning heavily toward the i5, but if I was to be assured that the Adobe CS Design suite (Photoshop, Illustrator, InDesign, etc.) was going to make use of HT in CS5, I would seriously consider going with the i7.
From the fine print of the BearFeats article:
We haven't forgotten to answer the question, "What about the iMac Core i5?" Geekbench 64 bit results posted on the Geekbench Browser indicate that the Core i7 is 35% faster. Until we can get our hands on a Core i5, we can only hypothesize that it is worth the paying 10% more for the Core i7 to get 35% more CPU crunching power.
Hope this helps.
Also with the i7 you get to see this in istat when you handbrake a movie. A thing of beauty.
ughhy.....i want it...
how long does it take to handbrake a movie? 2 min?