Differences between Intel Generations?

[LegacyStijncat]

Hello, and thanks for reading this already!

 

I'm planning out my build, which is probably going to contain an i7 due to Video Editing work, rendering, programming and some game development.

Now, looking at reviews of the i7-4790K, a lot of people are complaining about heat. It could be that they are just using stock cooler, but I want to make sure there aren't better alternatives.

 

So, my question is, are older generations as good in performance as the new ones?

I know this may sound stupid, but it seems like Intel is focusing heavily on Low Power Consumption + Integrated Graphics.

And if there's an older i7 which has better temps, just a little worse iGPU, then I'mma take that instead.

 

So, for the TL;DR, what's the best generation to choose from when it comes to temperatures + performance?

 

Thanks in advance!

[Aytex]

a 4790k at stock speeds + a 212 evo is great temps

it dosen't get above 60 on load so

[bomerr]

for rendering:

 

for temps: i7-6700k

 

for performance on budget: i7-5820k 

for performance no budget: i7-5960x

[Godlygamer23]

Going from Sandy Bridge to Haswell will yield about what....15% in CPU heavy situations. In order to allow the Sandy Bridge CPU to beat the Haswell CPU, you'd have to overclock it out of the box to compensate - higher heat and power draw right there. In addition, you miss out on things like PCIe 3.0 which may help in the future. When Intel went from Sandy to Ivy and beyond, they moved away from soldering the heat spreader to just "gluing" it on. This has resulted in higher temperatures, but another major difference between say Sandy and Haswell is that Haswell has the VRM integrated onto the package. This also increases heat output, but can give increased consistency with overclocking across varying motherboards. Purely architecturally speaking, Haswell has higher IPC(as mentioned initally) and a better performing IGP with lower power draw.

[Sakkura]

So, my question is, are older generations as good in performance as the new ones?

 

No, they are not. But the improvements over the past few generations have been quite small. An old(ish) Core i7-2700K isn't that much slower than a Core i7-4790K. Especially when you overclock, since the 2700K overclocks better.

[LegacyStijncat]

a 4790k at stock speeds + a 212 evo is great temps

it dosen't get above 60 on load so

O_O

I'm pretty sure my laptop gets 60 when running Firefox and Skype

 

for rendering:

 

for temps: i7-6700k

 

for performance: i7-5820k

The i7-5820k is, if I'm not mistaken, DDR4, which I'm not too fond off at the moment (due to high latencies and high prices)

The i7-6700k seems interesting though. Will this work with DDR3? And any word when it should be released?

 

 

 

Going from Sandy Bridge to Haswell will yield about what....15% in CPU heavy situations. In order to allow the Sandy Bridge CPU to beat the Haswell CPU, you'd have to overclock it out of the box to compensate - higher heat and power draw right there. In addition, you miss out on things like PCIe 3.0 which may help in the future. When Intel went from Sandy to Ivy and beyond, they moved away from soldering the heat spreader to just "gluing" it on. This has resulted in higher temperatures, but another major difference between say Sandy and Haswell is that Haswell has the VRM integrated onto the package. This also increases heat output, but can give increased consistency with overclocking across varying motherboards. Purely architecturally speaking, Haswell has higher IPC(as mentioned initally) and a better performing IGP with lower power draw.

Thanks for the info!

So, if I'm not mistaken:

Intel kind of f***** up with the heat spreader on Haswell, which made everything hotter. And, they made it also go hotter to make the chip more stable in OC'ing. And in general, a slight IPC increase.

Sandy Bridge didn't have the f*** up with the Heat Spreader, nor does it have the extra OC stability which gives more heat output. But, it has less performance. Too bring it too the same level, I would need to overclock it, aka shortening it's life span unnecessarily and still increasing temps.

 

So, I guess that selecting Haswell (Refresh) would be better, right?

 

 

No, they are not. But the improvements over the past few generations have been quite small. An old(ish) Core i7-2700K isn't that much slower than a Core i7-4790K. Especially when you overclock, since the 2700K overclocks better.

Thanks for the info! I heard that Intel has a series with great overclocking.

[Aytex]

O_O

I'm pretty sure my laptop gets 60 when running Firefox and Skype

 

The i7-5820k is, if I'm not mistaken, DDR4, which I'm not too fond off at the moment (due to high latencies and high prices)

The i7-6700k seems interesting though. Will this work with DDR3? And any word when it should be released?

i dunno if its my h440 that provides the well airflow

ive got 3 120 in front 1 140 outtake and 2 on top as outtake

[LegacyStijncat]

i dunno if its my h440 that provides the well airflow

ive got 3 120 in front 1 140 outtake and 2 on top as outtake

[bomerr]

for ram you have to consider both the speed and latency,

http://www.crucial.com/usa/en/memory-performance-speed-latency

 

so 1866 CL 10 is 10.7ns true latency. 2400 CL 15 is 12.45 (which is what i run). So it's only a 1.75ns difference. I could prob get it lower by upping the voltage and lowering the timings some more tho. Price is basically the same between ddr3 and ddr4 at this point. 

 

i7-6700k should come out tomorrow. Skylake is only 4 cores tho so even tho it's better than haswell-e, a 6 core 5820k will render videos faster. 

[i_build_nanosuits]

So, I guess that selecting Haswell (Refresh) would be better, right?

yes obviously, intel fixed the TIM and made the chips run cooler, they also overclock really well and the performance is through the roof.

 

Here a thread about performance from sandy to ivy to haswell and to broadwell:

http://linustechtips.com/main/topic/422201-intel-ipc-from-sandy-bridge-to-broadwell/

[Glenwing]

O_O

I'm pretty sure my laptop gets 60 when running Firefox and Skype

Laptops are designed to run at higher temperatures. Generally desktopsbshould run at about 60-70 under load, laptops typically run at around 80-90 under load.

[Godlygamer23]

Laptops are designed to run at higher temperatures. Generally desktopsbshould run at about 60-70 under load, laptops typically run at around 80-90 under load.

Of course it depends on your laptop or desktop. For example, my laptop uses Baytrail and runs at 60C under Prime 95 load while being completely silent.

[Glenwing]

Of course it depends on your laptop or desktop. For example, my laptop uses Baytrail and runs at 60C under Prime 95 load while being completely silent.

Laptop chips I mean, are designed with higher operating temperatures in mind.

[LegacyStijncat]

for ram you have to consider both the speed and latency,

http://www.crucial.com/usa/en/memory-performance-speed-latency

 

so 1866 CL 10 is 10.7ns true latency. 2400 CL 15 is 12.45 (which is what i run). So it's only a 1.75ns difference. I could prob get it lower by upping the voltage and lowering the timings some more tho. Price is basically the same between ddr3 and ddr4 at this point. 

 

i7-6700k should come out tomorrow. Skylake is only 4 cores tho so even tho it's better than haswell-e, a 6 core 5820k will render videos faster. 

Oh damn!

I prefer to stay away from DDR4 (especially since OH MY GOD there is sexy DDR3 ram #KingstonSavage). But, I did notice that the 5820K is pretty low (relatively) in price here now... Gonna see how much an upgrade costs.

 

Thanks for the RAM article! I'm surprised that Crucial is being so honest (seeing this is VERY sensitive info for a memory company).

 

yes obviously, intel fixed the TIM and made the chips run cooler, they also overclock really well and the performance is through the roof.

 

Here a thread about performance from sandy to ivy to haswell and to broadwell:

http://linustechtips.com/main/topic/422201-intel-ipc-from-sandy-bridge-to-broadwell/

Are you talking from Sandy --> Ivy / Sandy --> Haswell or Haswell ---> Haswell Refresh?

That article is awesome though! Thanks!

[bomerr]

Skylake and Haswell-E both use DDR4 and so will every performance cpu for the foreseeable future so you may as well jump on board now. 

 

Skylake is 15% IPC improvement over Haswell.

 

Skylake 6700k will be 15-25% faster than a 4790k depending on OC.

Haswell-E 5820k will be about 40% faster than a 4790k depending on OC. 

 

Unless you have a x87 or z97 mobo there is no point in even considering the 4790k at this point. 

[i_build_nanosuits]

Are you talking from Sandy --> Ivy / Sandy --> Haswell or Haswell ---> Haswell Refresh?

That article is awesome though! Thanks!

no, sandy-bridge performs less than ivy bridge (not the same), ivy bridge is less than haswell, and haswell vs haswell refresh are exactly the same performance clock for clock.