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Why is my AMD 8350 rendering faster than my mates 3770K

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Joined
10 Aug 2011
Posts
146
So we did a test render on Softimage and we found out it took 3770K 6min and 51 seconds to render a heavily detailed scene. It took 8350 6min and 3 seconds.

This is rather surprising. I ALWAYS her 3770k is faster, but turns out it's not in rendering.

We have disabled all APM (Advanced power management) Cool n' quite, etc, so we know ASUS BIOS configurations aren't slowing down the 3770K. We even checked the task manager at once and it was using all the cores at stock speed. We have been building PC since we were 14 years-old, so we know what we are doing.

This is our PC specs. We both bought the memory, graphics card and the HDD at the same time to reduce shipping cost.

My mates:

CPU: i7 Intel 3770k
Motherboard: Asus P8Z77-V
Memory: 8GB Corsair Vengeance
GPU: Sapphire AMD HD Radeon 7950 3GB OC edtion
1TB Wester Digial HDD
Corsair 600W PSU

My rig:
CPU: AMD FX 8350
Motherboard: ASUS ASUS M5A97 R2.0 Motherboard
Memory: 8GB Corsair Vengeance
GPU: Sapphire AMD HD Radeon 7950 3GB OC edtion
1TB Wester Digital HDD
XFX 550W PSU


EDIT: We did not overclock our CPU's
 
The FX8350 in the proper environment can be faster than a 3770k, that's not exactly a shocker.
It's software depending on rendering stuff.
 
I don't think anyone denies 8350 is not fast when all of the cores are kept busy, the trouble is it only happens in 5% of applications. His 3770K will destroy your 8350 in the other 95% especially if overclocked.
 
simple the 8350 is a true 8core cpu softimage can take advatage of that, whats actually really good is a 4 core was only 50 sec slower than an 8 core

8 / 393 sec = 45sec
4 / 411 sec = 102sec

Not an exact science but more than twice the work per core done by the 3770k
 
Ok, we did the test again. This time we turned on Hyper-Threading. Results were better for the 3770K. It managed to render the scene way faster than 8350. It only took 5min and 20 seconds.

Very good, but it's not exactly worth £200 extra just to render the scene 40sec quicker.
 
Ok, we did the test again. This time we turned on Hyper-Threading. Results were better for the 3770K. It managed to render the scene way faster than 8350. It only took 5min and 20 seconds.

Very good, but it's not exactly worth £200 extra just to render the scene 40sec quicker.

lol'd
 
Ok, we did the test again. This time we turned on Hyper-Threading. Results were better for the 3770K. It managed to render the scene way faster than 8350. It only took 5min and 20 seconds.

Very good, but it's not exactly worth £200 extra just to render the scene 40sec quicker.

ROFLCOPTeR
 
Ok, we did the test again. This time we turned on Hyper-Threading. Results were better for the 3770K. It managed to render the scene way faster than 8350. It only took 5min and 20 seconds.

Very good, but it's not exactly worth £200 extra just to render the scene 40sec quicker.

Since when does a 3770k cost £200 more than an 8350? Based on OCUK pricing, it is £120 more, but remember than it is able to outperform your 8350 in an 8 core optimised environment- imagine the difference in an application than can only use 4 cores...
 
Also, people keep forgetting the 8350 got much higher stock clock and lesser overclock headroom (and higher power consumption)...put both CPUs at 4.2GHz, then we can have a proper apple to apple comparison. Also, do one without HT as well which keeping both CPUs at 4.2GHz, then we'd have a clear picture of how the i5 3570K would match up as well.
 
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Also, people keep forgetting the 8350 got much higher stock clock and lesser overclock headroom (and higher power consumption)...put both CPUs at 4.2GHz, then we can have a proper apple to apple comparison. Also, do one without HT as well which keeping both CPUs at 4.2GHz, then we'd have a clear picture of how the i5 3570K would match up as well.

why? its obvious that they are designed to run at different frequencies you would not compare a motocycle and car by making the car race on two wheels would you?
stock vs stock or max oc vs max oc are the only valid options really
 
why? its obvious that they are designed to run at different frequencies you would not compare a motocycle and car by making the car race on two wheels would you?
stock vs stock or max oc vs max oc are the only valid options really

Well, they clock to pretty much the same amounts, except that the end speed results in both a higher gain in MHZ for the i5 and a higher percentage.

Why'd you think AMD's stuff is so highly clocked to start with?
 
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