View Full Version : i7 vs i5 processor advice
I'm about to buy a new desktop for the home study that will be used as a general PC for mum to do the odd word document, send emails, my son to play his various ultra violeent :cool: online games and I'd also like it to be the main PC I use for lightroom and photoshop edits.
I'm looking at getting a i5 with 8gb ram and 1GB graphics card ?
Is this grunty enough do you think ? It's only about $1200, to go to an i7 is up another $500 or so from what I can see
Dave Clifford
15-07-2011, 9:23am
Morning Darren, I am no IT guru but if you can stretch for the i7 that is what I would suggest.
I have an i5, which I use for my drafting work (AutoCAD) and it runs fine, I don't use it for lightroom or PS as that is what my mac is for, but you definately can run both with it. I would imagine it would get bogged down quicker than the i7 though.
Not sure who the PC is through, off the shelf by the price i'm assuming. The i7 is definitely the way to go, but should be had with 8Gb RAM and a random 1Gb GPU for somewhat less than $1700...
Yes, long story, but I have a credit with Hardley Normal that I can use for this.
arthurking83
15-07-2011, 9:38am
i7..... or better yet, a 6core AMD(which is better value for money).
More importantly, you want quick hard drive(s) and fast memory anyhow.
That is, a lot of vendors of PCs use slower 5400RPM drives, which are noticeably more sluggish, and you'll notice this over time as the PC boots up.
As more drivers are installed as you add various software and other hardware, the time taken to read the required files on a 5400RPM disk when compared to a faster 7200RPM disk makes a difference.
As your son's games are online, the speed of the machine isn't going to make all that much of a difference in the end, as the connection speed(cable max'es out at approx 1Mb/s) so to have a PC system spec that allows data throughput of 6Gb/s ultimately is a wasted effort.
Wife's documents will all work as quickly and smoothly on any machine from an i5 -> AMD x4 -> AMDx6 -> i7.
Where you will see a difference in speeds(of the PC, and CPU type) is in a long convoluted conversion process, raw images to JPG, raw video to MPEG, WAV to MP3 conversions, and suchlike.
I always tell folksies that if they can afford it now, get the more expensive option(to a degree), that is i7 over i5, or AMD x6 over x4 .. and so on.
The machine ends up lasting a bit longer until the inevitable happens and it's time to upgrade again in a few years time!
ricktas
15-07-2011, 9:39am
Look for a new PC with a sandy bridge (http://www.intel.com/en_AU/consumer/products/processors/index.htm?cid=apac:ggl|ci5ltop2_au_sandybridge_sl|ti1B5B3|s) with applicable sandy bridge motherboard. They are starting to appear in stores etc now. For gaming, you are best off getting the latest.
Do you know which i5 and which i7 you're looking at? The latest i5s and i7s are the sandybridge models. Just checked local store here, the cheapest i5 is listed at $178 and most expensive i7 is $316.
The top i5 is only $214, and is very similar in performance to the i7 that's $100 more in pretty much all circumstances. Perhaps a couple processes in Photoshop might be a fraction of a second faster for quick operations, and a couple seconds for operations that take half a minute...
I'm pretty sure the only change needed to go from a sandybridge i5 to a sandybridge i7 is the processor itself, so I'm not sure why you've been given the figure of $500?? It makes me wonder if you're looking at either older models of the i7, which would require RAM in sets of 3 instead of 2, and a different motherboard.
Have you got a link to the specs of the systems you're looking at?
There's a compaq desktop I'm looking at, it's a generation 1 i5 chip rather than the latest one I believe , it's $909 at the moment for 4gb
Bennymiata
15-07-2011, 11:18am
Personally, if I could afford it, I'd go for a machine with a quad-core, hyperthreading Xeon chip in it, but whatever you get, make sure it has a good video card in it.
A 1 gig card shoud be fine.
HP are doing some very good deals on Xeon workstations right now, and while they may be a few hundred $$$ dearer, they will last for many years without requiring updating.
A fast hard drive is a definite, and you could also think about getting an SSD in it, so it will boot up and be ready to work from cold in about 15 seconds.
If the SSD is big enough, put your editing programs on it too, and you will have instant response.
Here is what I am looking at but with a list price of $909 and I will add another 4th ram
http://www.harveynorman.com.au/product/1256973582122/compaq-presario-cqan-desktop-tower
Speedway
15-07-2011, 11:31am
Another thing is the OS, 32 bit will only recognize 4g of ram anything more and you will need 64 bit.
Keith.
etherial
18-07-2011, 7:28pm
Hey Kiwi, for what it's worth.....
I went for the i5, couldn't justify the expense for the i7 and from what I read the better performance gains are in HDD, and to a lesser extent RAM quantity and speed, graphics cards, and motherboard bus speeds.
Have you considered building it yourself? I got some good advice here (http://www.ausphotography.net.au/forum/showthread.php?81562-Building-a-desktop-computer&) and also over at Whirlpool and built myself a much higher spec machine that the Compaq you have listed for a cheaper price. I also have something that I can upgrade easily, ie a case and power supply that will last 2-3 builds, plenty of space for extra HDDs, external eSata and USB3 ports etc. Plenty of reasons to build it yourself I reckon, and it was fun. I'm very happy with mine, has been a brilliant machine and runs LR and CS5 easily (don't know how I lived without it!!)
Thanks Mic, good advice, but I probably still need to use my store credit
arthurking83
18-07-2011, 8:07pm
Even if you don't actually do the build yourself, you can still do a D-I-Y type of PC purchase where you specify the parts you want.. ie. which processor, mainboard, ram(type brand and speed.. etc) what brand of hard drives(and how many!!).
Get a generic Harvey Norman build and you get all that 'power' and (almost certainly) there will be a compromised parts somewhere in the pipeline that will not allow the full potential of the PC to be used.
That is, say you buy all these uber fast basic components, such as i7, fast ram fastest graphic card, and so on, but you skimp on a slower hard drive(eg a 5400rpm 'green' hard drive), all the processing power is wasted, because the bits and bytes cant' come off the hard drive fast enough to use the full potential of the entire PC.. You may as well have saved all the money on the uber fast parts and invested in an array of SSD's instead!
There are plenty of vendors willing to build you a PC to spec(your spec!). You just need to A: find them(easy enough question to pose for your area), and B: tell them the parts specs(easy enough question to pose on many forums(AP, Whirlpool, etc)
But be specific about total price, coz the speed demon freak show crew, will spend over $15K of your money on 15 CPU Opteron system with 15 x 15K Seagate drive arrays .. and so on and so forth ....
$1200 should easily get you a very fast (image editing-gaming-household) PC with a decent screen to boot if you go with a custom build.
etherial
18-07-2011, 8:10pm
Thanks Mic, good advice, but I probably still need to use my store credit
That'yll teach me to read all the posts!!
arthurking83
18-07-2011, 8:46pm
You could probably use the store credit for other peripheral devices. Dunno what exactly, but surely there is something else you want/need/must have?
Maybe the screen? a nice huuge 27" screen?.. printers, routers.. whatever other devices make the household a cohesive and serene environment ;)
JM Tran
18-07-2011, 8:51pm
A Solid State Drive is what I would think and get first before everything else - like Arthur said your HDD will be a bottleneck to all those power if its a slow one.
even an SSD RAID array is affordable these days for either more speed/processing power or data redundancy
13 months of using an SSD, I can never go back to any HDD anymore:)
ericimbs
18-07-2011, 9:37pm
Depends who your friends are, but the i5 can be overclocked to 4.5ghz, the i7 is locked. I frequently process 100mb image files in cs5, and went the i5. I've not yet overclocked it as i've not needed to. Point is, based on your requirements, buy the i5 and spoil yourself with a night at a nice restaurant with the money you save.
A Solid State Drive is what I would think and get first before everything else - like Arthur said your HDD will be a bottleneck to all those power if its a slow one.
even an SSD RAID array is affordable these days for either more speed/processing power or data redundancy
13 months of using an SSD, I can never go back to any HDD anymore:)
very good advice and Darren, from memory you use CNX2? that is one program that really benefits from a fast HDD..
As your son's games are online, the speed of the machine isn't going to make all that much of a difference in the end, as the connection speed(cable max'es out at approx 1Mb/s) so to have a PC system spec that allows data throughput of 6Gb/s ultimately is a wasted effort.
tsk tsk tsk... :)
to keep up with a ping of 20 ya gonna need the 250 fps ;) CSS ftw.
arthurking83
19-07-2011, 5:57am
^^ Darren: = :violent10: + CNX2 ... no need for fast hard drives.
Fast drives advice is good.. but in reality only up to a specific point.
anyone using CNX will only really benefit with a fast drive, but really only if the fast drive is the on used for image storage, more so than program location.
I've never really noticed any increase in speed in CNX(and it's my main program, along with VNX), when I used the faster drive for installing Windows and programs.
But there was a massive difference in operational speed.. loading images, screen refreshes and so on when the images were stored on a fast hard drive.
The difference in transfer rates between my faster drives and slower drives is 100Mb/s compared to 40-ish Mb/s.
Editing jpgs in CNX is a different kettle of chips tho. I've never noticed any difference in performance in CNX when using a faster drive. CNX is fast enough when editing a jpg image off a slow drive.
But the cost in getting an SSD drive large enough to store Gigabytes(Terabytes) of images, is impractical.
The SSD idea was only for OS and programs so as to speed up Windows loading up, and also for the possible benefit of loading other programs quicker.
Anyhow .. Darren hates CNX, so there is no matter that needs to be resolved here. It's simply about channelling the available funds into the appropriate areas to get the best benefit.
(I too forgot about the store credit aspect!)
Lol, I dont hate cnx, I just don't uses it, I actually like it's raw conversion but decided long ago to stick to adobe editing tools
ricktas
19-07-2011, 6:14am
You lot are nerds ;-)
You say that like it is a bad thing!
Hi Kiwi. Going by the specs on *removed, members with less than 50 posts and/or 30 days membership cannot promote commercial companies. Please read the site rules* it is using an i5 650 processor which is only dual core not quad core, and is a socket 1156 cpu which is now obselete, having been replaced by socket 1155.
If you have no intention to upgrade in the future it may be ok but I'm sure you would get far better value elsewhere. Have a look at Computer Alliance's website, for example, to see what that sort of money can get you.
Darren I have a similar setup to that you mentioned with the i5 2.66ghz quadcore and it will do everything you listed just fine. I do find it however that it has been on the "slow" side when I'm exporting fullsized photos since I upgraded to lightroom 3. But with that said, I usually also have PS CS4 open, running multiple browsers, running multiple monitors, playing movies/music simultaneously :p When I built my pc, I was advised that spending the extra $$$ on the i7 equivelant couldn't really be justified for cost vs performance
bricat
24-07-2011, 11:02am
Just come back from swap meet and i7 unlocked with 1gig graphics blah blah $1100. No monitor though just case and internals. Perhaps you could buy something else at HN or bargain a bit harder for an upgrade for a little more cost. I am lucky my son knows more about computers than me. I know enough to be dangerous cheers Brian
Can i throw one in the mix as i Iam currently looking for a new PC or laptop.
which is better to go with a laptop, full board pc or a mini board pc?
i current pc is a hp and is about 8 year old running xp, 4 gig ram, 512mb graphic card. but it has come to the stage of not want to run CS5 or lightroom.
does brand pay a factor into people choice, because i have always wanted a alienware brand. now i know you pay for the name brand.
as i am looking alienware laptop M18 r3x or their Area 51 base model pc both are going to be over the top.
Colinc1
24-07-2011, 7:20pm
The i5 is plenty good enough,and you can build one better & cheaper than that hardley normal one you are looking at(its would cost about $450 tops to build that one),you would live to regret
purchasing that..
Get a custom built one, and be happy ever after :):)
Ganzer, you would be better with a desk top price wise, and go the way just about everyone else on this thread is recommending
This is a great resource for specifying a system...
http://whirlpool.net.au/wiki/rmp_sg_whirlpoolpcs
http://whirlpool.net.au/wiki/rmp_sg_whirlpoolpcs_multi_tasking_configs
:th3:
ricktas
24-07-2011, 7:28pm
Ganzer, agree with Colin. Also look at the specs of the Alienware series and then compare to some of the other brands, Dell are very expensive in the premium range. I got all the parts for my recent system for well under what the equivelant Alienware one cost, with better components.
Have a look at what AP site advertiser www.scorptec.com.au (http://www.scorptec.com.au/systems/all/) have in their custom range, and you can customise the components to suit your needs
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