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is a move from a Q6600 to a Q9450 worth it for 3D rendering?

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12 Sep 2008
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Hi all, I currently have a Q6600 and was just wondering if (clock for clock) it was worth upgrading to a Q9450 for 3D work?. Does the 12mb cache of the latter actually come in as any use to render speed over the 8mb cache of the Q6600?

Any opinions or suggestions would be greatly appreciated.
 
thanks for the reply rjkoneill.

How about if I have my Q6600 overclocked to 3.2Ghz vs a Q9450 at the same clock, would there still be a big difference to justify the price would you say?
 
Easy, what are you going on about?

don't you know the difference between opinion and fact? hehe don't bother asnwering that because we all know you don't! :D

Just to focus the debate, I ask you to define *Worth* as in . .

"is a move from a Q6600 to a Q9450 worth it for 3D rendering?"

TBH If one was to take a harsh look at the upgrades people make I don't think many of them are worth it, but then again most of us upgrade for those little 5%-10% gains, pretty much always incremental evolution and not utterly revolutionary!

It's a hobby we all enjoy so for that reason sometimes it is *worth* it just for a few weeks until the shiney wears off.

And you of all people easyrider have upgraded and swapped out mobos, cpus, memory etc, spending countless hours and hard cash £££ on overclocking akready fast CPU's, the question is to you . . .Was it worth it?"

Well to me 3D work is a bit more than a hobby - I do freelance and work for a 3D company so I'm hoping I will see returns from any future upgrades which greatly increase my productivity and workflow.

From reading everybody's input it sounds like I really should just sit on this processor until the i7 price becomes a more realistic option.

Thanks again so much guys for all your opinions/facts :P
 
Wow, we got ourselves a real life 3D-designer on the forums! :)

excellent, can I pick your brains a bit, like maybe describe what a very busy day or work would be like for you, where is the bottleneck where sometimes you are sitting waiting for stuff? i.e: What would be a big task for you where the computer will keep you waiting (and therefor less productive).

What are the main software tools you use and are they multithreaded?

It's clear you got a bit of spare cash to spend and with the extra justification of your PC being a work-horse there may well be some spending happening soon! :p

I've only just started at this company :p I'm a 3D-lighting artist, we have a seperate department which deals with all the rendering networks and such. When I'm at home doing freelance I am in charge of the rendering but it's only really for small clients and much smaller projects.

I find the longest things to render are obviously high definition sequnces and highly detailed ray tracing passes. Usually at home when I'm waiting for a render I just carry on working on my other (less powerful) machine.

The software I use is mainly Maya (with Renderman) but for my architectural work I use 3D studio max (with Vray). I have a website if you want to have a look but the work I have there is fairly old:

http://www.samiransari.co.uk/
 
Given that you're looking to increase your rendering horsepower, have you considered building a second machine? I don't know the specifics but doesn't most 3D rendering software support distributed rendering?

Make sure it can distribute a single frame over multiple machines if you're doing stills though, no point having a second machine if it's just gonna sit there idle :) Not sure what way distributed rendering works on the software licencing front.

Admitedly it'll be a bit pricier than just an upgrade but I figure you'd roughly double your rendering speed.

This is something I have considered but like you said its a very expensive option. The second machine I have is the one that I use for internet browsing and very lightweight 3D work whereas my other machine is the worky one. I was looking for an upgrade that would not cost me more than about £280 in total - but I think I'm just going to have to be patient with this one. My overclocked Q6600 is serving me well for now but I know that overclocking and rendering is not a very good combo in the long run at all - I would like a processor that wouldn't need much of an overclock out of the box for very good results.
 
If anyone is still interested I thought I would chip in with some real numbers for 4 machines that are used in rendering applications.

I ran the 64 bit version of Cinebench on each which gives a decent indication of realtive CPU performance.

Here are my results:

Q6600 2.4GHz 9500
Q6600 2.8GHz 11100
Q9550 2.83GHz 11700
Q9550 3.4GHz 14400
Xeon 8 Core 3.0GHz 21900
i7 920 3.57GHz 20100

In my opinion you really need to be looking at an i7 system to get a dramatic increase in rendering power and sadly that costs money. And even then you probably need to be prepared to overclock it.

At the same clock speed there isn't much to choose between a Q6600 and Q9550.

I'm not sure why you say that rendering and overclocking are not a good combo - As long as the machine is 100% stable and you are not over volting then I don't see an issue. All my overclocks are at stock volts.

Network rendering can be very useful. The problem with this is when making small test renders and the overhead of network transfer time cancels out the contribution of the 2nd PC.

Anyway, for what its worth those are my findings. I think you are right to be patient - If you are clocking your Q6600 over 3GHz then you have a pretty decent machine !

Hey mate thanks very much for those numbers - that really makes it crystal clear as to how useless an upgrade to a q9550 would be for render speeds :p

It's going to be a long and treatorous road to an i7, but my god I will have to get there somehow!
 
What a suprise! another OcUK member manages to justify buying an i7 because it's faster!

Of course it's faster that's why it's really expensive! :D

Tip: If when selecting an upgrade you do your homework and compare stuff and then end up your selection process by choosing pretty much the most expensive option then your doing something wrong! (and the marketing men are doing something right!).

ok, im not entirely sure what your getting at here, but the total I came to was by adding up the CHEAPEST parts I could find that I knew I needed for an i7 (mobo, cpu and ram)
 
Well I wouldn't have said that myself, Yorkfields a nice upgrade, doesn't bring as many gains as say a complete i7 overhaul but it's cheaper and quite an easy upgrade, certainly not useless . . .

Anyway you know best so happy xmas and enjoy :)

well I was just going by the cinebench scores on the previous page, clock for clock they seemed to be equal in regards to rendering performance.
 
Hey guys, looks like I will be taking the step to i7 after all - managed to find someone to buy my motherboard, CPU and RAM all together so it should lessen the blow for the money im about to spend!

I'll be back soon with performance comparisons
 
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