i7 Generation Differences???

[Sin Stalker]

So I had this as an additional question in another thread but it was never touched, so I'm giving it it's own thread.

 

Besides base clock speed, power efficiency, and the MOBO bottle necking, what is the difference for each generation of intel i7 CPUs?

 

I'm bad at asking this question, so I'll try to explain my thinking or reasoning for asking. If you OC an older i7 (keep cores and hyperthreads constant) to the same speed as a newer i7, what would be the difference besides the previously mentioned exceptions?

 

I'm looking at either overclocking my current i7 or building a newer system. But I'm not sure building a new system is even worth the $1000, if buying a closed loop cooler and learning how to OC will make it damn near the same functionality. Esp when my current PSU has more than enough watts to handle the current power usage and the GPU I have isn't bottle necked with the current MOBO PCIE slots I have.

 

 

I know there are sites that compare CPU performance and benchmarks, but is there one that can compare an OC'ed CPU with  another gen non-OC'ed CPU? I'd love to find some real numbers to support answers to my above question.

 

Thanks.

[Glenwing]

2 minutes ago, Sin Stalker said:

So I had this as an additional question in another thread but it was never touched, so I'm giving it it's own thread.

 

Besides base clock speed, power efficiency, and the MOBO bottle necking, what is the difference for each generation of intel i7 CPUs?

 

I'm bad at asking this question, so I'll try to explain my thinking or reasoning for asking. If you OC an older i7 (keep cores and hyperthreads constant) to the same speed as a newer i7, what would be the difference besides the previously mentioned exceptions?

 

I'm looking at either overclocking my current i7 or building a newer system. But I'm not sure building a new system is even worth the $1000, if buying a closed loop cooler and learning how to OC will make it damn near the same functionality. Esp when my current PSU has more than enough watts to handle the current power usage and the GPU I have isn't bottle necked with the current MOBO PCIE slots I have.

 

 

I know there are sites that compare CPU performance and benchmarks, but is there one that can compare an OC'ed CPU with  another gen non-OC'ed CPU? I'd love to find some real numbers to support answers to my above question.

 

Thanks.

Depends on the specific generations, they're not all the same distance apart.

 

The difference between the last 3-4 generations (i7-4770K to i7-7700K) isn't really anything, they're almost the same. 1st gen to 2nd gen on the other hand is another story.

[cpuwaiy]

Here is a video on just the topic you're inquiring about:

 

 

 

[doomsriker]

They made the video to answer that general question. 

 

 

[Mira Yurizaki]

http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/9

 

Here's Anandtech's benchmarks from the i7-2600K to the i7-6700K.

[LienusLateTips]

The archtectiure is different, so the IPC is different.

[oskarha]

I made this video for a school project about the various Intel CPU generations through time.

I run benchmarks were I compare the CPUs clock for clock.

 

[Sin Stalker]

7 hours ago, cpuwaiy said:

Here is a video on just the topic you're inquiring about:

 

 

 

I don't see first gen in this video.

 

 

7 hours ago, doomsriker said:

They made the video to answer that general question. 

 

 

But by how much? This situation doesn't compare i7s. 

 

 

7 hours ago, M.Yurizaki said:

http://www.anandtech.com/show/9483/intel-skylake-review-6700k-6600k-ddr4-ddr3-ipc-6th-generation/9

 

Here's Anandtech's benchmarks from the i7-2600K to the i7-6700K.

Missing first gen i7....

 

 

7 hours ago, JDE said:

The archtectiure is different, so the IPC is different.

Yes, but by how much? What numbers and how does that apply in real world uses?

[LienusLateTips]

2 hours ago, Sin Stalker said:

I don't see first gen in this video.

 

 

But by how much? This situation doesn't compare i7s. 

 

 

Missing first gen i7....

 

 

Yes, but by how much? What numbers and how does that apply in real world uses?

For example: A i5 4690 is about equvilent to the i3 7100. Here is a example of IPC: a chip runs at 1GHZ and is 2IPC. Another runs at 2GHz and 1IPC. They are exactly the same speed.

[Sin Stalker]

19 minutes ago, JDE said:

For example: A i5 4690 is about equvilent to the i3 7100. Here is a example of IPC: a chip runs at 1GHZ and is 2IPC. Another runs at 2GHz and 1IPC. They are exactly the same speed.

Okay. So its a multiple of the IPC and GHz that gives us its "real" speed. 

 

Where do I find my IPC? My current cpu is the i7 930. I tried googling it but could only find random comparisons match ups.

[Coaxialgamer]

 

[Sin Stalker]

3 minutes ago, Coaxialgamer said:

 

Where's the first gen i7?

[Coaxialgamer]

1 minute ago, Sin Stalker said:

Where's the first gen i7?

Couldn't find anything. In general, they are about 15-20% slower at the same clock speeds. 

 

Are you specifically asking about the 1rst gen vs current chips? 

[Sin Stalker]

Just now, Coaxialgamer said:

Couldn't find anything. In general, they are about 15-20% slower at the same clock speeds. 

 

Are you specifically asking about the 1rst gen vs current chips? 

Yeah, sorry I should have specified that I have a first gen i7 930.

 

I'm trying to figure out, if I OC it, what the performance difference will be compared to the a more recent i7, like a skylake or kabylake. Then I can take what that performance difference is, i guess its ipc I need to look at, and judge exactly what a new system at ~1k would get me, over spending just ~$100 for a closed loop cooler and my time overclocking my current system. Its all about price vs performance, as I've learned from LTT.

 

I'm hoping that the performance difference won't warrant a new system and I can stop salivating over other systems.

[Coaxialgamer]

2 hours ago, Sin Stalker said:

Okay. So its a multiple of the IPC and GHz that gives us its "real" speed. 

 

Where do I find my IPC? My current cpu is the i7 930. I tried googling it but could only find random comparisons match ups.

You can't. IPC isn't a number you can get. The whole concept of IPC itself is misleading, but i won't get into that. 

Just in general it's best to look at benchmarks, because performance relative to other platforms  can vary depending on the  workload

But in general , at the same clock speeds:

1rst gen to 2nd gen : +15-20%

2nd gen to 3rd gen : +5%

3rd gen to 4th gen :+10%

4th gen to 5th gen :+5%

5th gen to 6th gen :+5%

6th gen to 7th gen :+0%

[Sin Stalker]

4 minutes ago, Coaxialgamer said:

You can't. IPC isn't a number you can get. The whole concept of IPC itself is misleading, but i won't get into that. 

Just in general it's best to look at benchmarks, because performance relative to other platforms  can vary depending on the  workload

But in general , at the same clock speeds:

1rst gen to 2nd gen : +15-20%

2nd gen to 3rd gen : +5%

3rd gen to 4th gen :+10%

4th gen to 5th gen :+5%

5th gen to 6th gen :+5%

6th gen to 7th gen :+0%

 

So, are you saying that "in general" my 1st gen i7 is around 40-45% slower than a skylake or kabylake?

 

Cause fuck... That makes it sound like I shouldn't waist anymore money on this current system and save up for that next $1000 build....

[Coaxialgamer]

5 minutes ago, Sin Stalker said:

 

So, are you saying that "in general" my 1st gen i7 is around 40-45% slower than a skylake or kabylake?

 

Cause fuck... That makes it sound like I shouldn't waist anymore money on this current system and save up for that next $1000 build....

Plus  there is the clock speed advantage of the newer platforms. But before making up your  mind, look at some benchmarks in the games/applications you use. In many games for example, the gpu will still be the bottleneck, meaning you wouldn't see a performance boost with a new cpu. 

 

Cinebench is usually a good indicator of performance, so I'd start with that. 

Socket lga 1366 is getting pretty old at this point. By upgrading, you'd get updated IO, ram, pcie etc. 

 

5 minutes ago, Sin Stalker said:

 

 

[Sin Stalker]

11 hours ago, Coaxialgamer said:

Plus  there is the clock speed advantage of the newer platforms. But before making up your  mind, look at some benchmarks in the games/applications you use. In many games for example, the gpu will still be the bottleneck, meaning you wouldn't see a performance boost with a new cpu. 

 

Cinebench is usually a good indicator of performance, so I'd start with that. 

Socket lga 1366 is getting pretty old at this point. By upgrading, you'd get updated IO, ram, pcie etc. 

 

Yeah, I figured the MOBO would be the main bottleneck right now.

 

Where is a safe site to download cinebench? Never used it and when I google it, I don't find an official site popping up like it does with frapps or HWMonitor. 

[scottyseng]

9 minutes ago, Sin Stalker said:

Yeah, I figured the MOBO would be the main bottleneck right now.

 

Where is a safe site to download cinebench? Never used it and when I google it, I don't find an official site popping up like it does with frapps or HWMonitor. 

https://www.maxon.net/en-us/products/cinebench/

[david cassar]

11 hours ago, Sin Stalker said:

 

So, are you saying that "in general" my 1st gen i7 is around 40-45% slower than a skylake or kabylake?

 

Cause fuck... That makes it sound like I shouldn't waist anymore money on this current system and save up for that next $1000 build....

Here watch this vid. It contains gameplay of an i7 860 (1st gen) against a haswell i7 and a skylake one all at the same clock speed. Also I say it depends on what your graphics card is and what graphics you want to get. If you have for example a 970 or rx 470 you won't get that much of a performance increase from the 1st gen i7 to a later i7. With a faster graphics card (gtx 1070 upwards) however you will definitely feel the difference. To be fair however the 1st gen i7s are still pretty capable chips today once given a decent overclock.