questionsintel dual-core i3-2120 processor @ 3.3ghz or…

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http://ark.intel.com/products/53486/Intel-Pentium-Processor-G640-(3M-Cache-280-GHz)
http://ark.intel.com/products/53426/Intel-Core-i3-2120-Processor-(3M-Cache-3
30-GHz)
The i3 will show up as a 4 core machine each core running 50GHz more then the 2 core G640.
http://compare-processors.com/forum/pentium-g640-vs-i3-2120-t699.html

How much is the price difference?
What do you do with your PC?

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@caffeine_dude: Thanks for your reply. The price difference is about $150. We use the computer at home, mostly to browse the web, stream some music & movies. Burn some CDs & DVDs & light photo editing.

So it sounds like what you are saying is that the i3 is a much more powerful processor - in that I should notice a big difference in performance between the two?

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A multi-core CPU is useful for users who do a lot of multi-tasking. Since a single process can only use one core, unless you are using several processes at any given time, you will not benefit from having more cores.

If you are on a budget and you're just going to be using it for the handful of things you mentioned, then I wouldn't spend too much on a multi-core CPU. A dual-core CPU will probably be fine for light use. That being said, it might be worth looking at prices on a dual 3.0+ instead of a dual 2.8.

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@sfstone: nothing else is different? For 150 I would expect more memory. And maybe:
One is refurb and one is not.
One has Win7 and the other Vista or XP or Win7 starter.

If you don't mind post the links for the PCs.

Don't forget you may have some weather program running and google services and printer junk ware and antivirus... but even then 2 cores are enough for all that.

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CPU Passmark:
i3-2120: 4223
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i3-2120+%40+3.30GHz

G640: 2915
http://www.cpubenchmark.net/cpu.php?cpu=Intel+Pentium+G640+%40+2.80GHz

Is the CPU the only difference for that $150? ... because it should really account for about $50 difference.

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@caffeine_dude: I was comparing two HP desktops:

p6-2220t:
http://www.shopping.hp.com/en_US/home-office/-/products/Desktops/HP-Pavilion/B3F79AV?HP-Pavilion-p6-2220t-Desktop-PC

and the p7-1370t:
http://www.shopping.hp.com/en_US/home-office/-/products/Desktops/HP-Pavilion/A7F21AV?HP-Pavilion-p7-1370t-Desktop-PC

With the P7 for the extra $150 or so you get the faaster processor plus 6gb RAM vs 4Gb and a 1TB hard drive vs. a 500gb hard drive. The P7 also has 1 extra optical bay and an extra 3.5" bay. I am pretty much sold on the P7 but was just wondering how much difference there was in the two processors.

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@narfcake: @caffeine_dude: I was comparing two HP desktops:

p6-2220t:
http://www.shopping.hp.com/en_US/home-office/-/products/Desktops/HP-Pavilion/B3F79AV?HP-Pavilion-p6-2220t-Desktop-PC

and the p7-1370t:
http://www.shopping.hp.com/en_US/home-office/-/products/Desktops/HP-Pavilion/A7F21AV?HP-Pavilion-p7-1370t-Desktop-PC

With the P7 for the extra $150 or so you get the faaster processor plus 6gb RAM vs 4Gb and a 1TB hard drive vs. a 500gb hard drive. The P7 also has 1 extra optical bay and an extra 3.5" bay. I am pretty much sold on the P7 but was just wondering how much difference there was in the two processors.

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Are you absolutely locked into a HP? I'm feeling that this $410 Lenovo - AMD A6-3600 (quad core), 6GB ram, and 500gb HDD, may be a happier medium.
http://www.newegg.com/Product/Product.aspx?Item=N82E16883108938

CPU Passmark:
A6-3600: 4169
http://www.cpubenchmark.net/cpu.php?cpu=AMD+A6-3600+APU

The video in the HP is where there's a big difference:
http://www.videocardbenchmark.net/gpu.php?gpu=Intel+HD+i3-2120

Here's the Lenovo/AMD:
http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+6530D

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I agree with @narfcake:

I will be honest it has been 4+ years since I really looked close at PCs for my self. Even then I built my own. When I do buy a PC I spend weeks watching ads, checking prices, reviewing specs, researching features.

*not %100 confident in my next statement.
The other thing to note is both the HP have integrated video. If I am not mistaken the video is now heavily built into the chip not the MB and the i3 gives much better video, for last year games, and movie playback. If I have time I will research my comments and comment on the accuracy. (perhaps @narfcake will know)

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@caffeine_dude: When it comes to integrated graphics, both the chipset and processor will have an effect.

With that said, the AMD is by far the stronger contender here. Against the Pentium, it's much faster.
http://www.anandtech.com/show/4524/the-sandy-bridge-pentium-review-pentium-g850-g840-g620-g620t-tested/4

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@sfstone: Besides the aforementioned $410 Lenovo, if you feel you'll need the processing power, consider this Dell Inspiron 620 MT instead.

http://configure.us.dell.com/dellstore/config.aspx?cs=19&dgvcode=ss&c=US&l=EN&vw=list&oc=dddwjq5&dgc=CJ&cid=7420&lid=566643&acd=10550055-227502-F012A00A0AC71A00310631C84A01A0A0

I normally dislike Dell Home, but for the price, it can't be beat, as for the same $499 as the HP, you get an i5-2320 instead and the same 6GB ram + 1TB HDD. Intel's integrated graphics will still be a lower performer than the Lenovo/AMD, however, but it is easily upgradable yourself on this Dell.