i5 vs i7

[icegod]

I have a question
While rendering, what would be faster?

an i5 4690k clocked at 4.7 or an i7 4790 (non k) clocked as 4.00ghz (turbo boost)?

 

[rolli59]

I7 presuming the program used can utilize the hyper threading.

 

[Shneiky]

Depends on the software. Are you rendering 2D or 3D? If it is 2D - is it Premier or Sony Vegas for example? Do you use GPU acceleration? What is the GPU? If it is 3D - which render engine are using? Mental Ray, VRay or something else?

 

[sizzling]

Very theoretical, most 4690k's wont get that high, often top out at 4.4 or 4.5.

Interested to see what others think but I strongly think the 4790 would be the winner by some margin

 

[Shneiky]

If it is Mental Ray - the I5 will win. Mental Ray has few render prepasses that are not multi-threaded. If it is VRay - I7 will win. VRay is very optimized for multiple threads. Just is just a single example.

 

[sizzling]

Here might be of interest http://anandtech.com/bench/product/1199?vs=1261

 

[Shneiky]

That is a comparison of a stock I5 vs a stock I7. With the 4.7 OC on an I5 - it will be chasing and maybe overtaking I7 is many scenarios.

 

[sizzling]

That is a comparison of a stock I5 vs a stock I7. With the 4.7 OC on an I5 - it will be chasing and maybe overtaking I7 is many scenarios.

Yes that's correct but you can extrapolate what the i5's performance is likely to be with an OC. Now a huge amount depends on what software the OP is using

 

[Shneiky]

No you cant. OC does not scale linearly with render performance. This is not a synthetic benchmark. Going from 3.5 to 4.2 GHz has brought me 1/3 reduction in render times with Mental Ray in some very rare cases. In others - it brings as little as 10%.

Some other software are consistent though. XNormal AO baking scales exactly linearly with clockspeed.

 

[MikeDavo]

Really, it depends on the work and programs your using that determines your solution. More cores is usually the way to go when it comes to rendering but if the program is single threaded except for the renderer as just about all 3d programs are, the choice becomes harder.

 

[icegod]

My main program would be Video editting programs, like Adobe Premiere mainly