3820 vs 3770

[DeadlyPilot]

Which one has faster single thread? Different benchmarks are telling me completely different things.

 

3770 + MB = $155

3820 + MB = $210

 

Which is a better buy?

[Enderman]

3770 has better single core.

[DeadlyPilot]

Just now, Enderman said:

Do you mean 3820K?

Didn't know there was a 3820k

[Enderman]

Just now, DeadlyPilot said:

Didn't know there was a 3820k

Nvm I got confused, read the post again.

[DeadlyPilot]

Just now, Enderman said:

Nvm I got confused, read the post again.

Oh I see. It happens

[DeadlyPilot]

2 minutes ago, Enderman said:

3770 has better single core.

What are you basing that off of? R15 scores tell me the opposite, but userbench puts it the other way around.

[Enderman]

2 minutes ago, DeadlyPilot said:

What are you basing that off of? R15 scores tell me the opposite, but userbench puts it the other way around.

The fact that it is a newer architecture and has a higher clock speed.

[i_build_nanosuits]

8 minutes ago, DeadlyPilot said:

Which one has faster single thread? Different benchmarks are telling me completely different things.

 

3770 + MB = $155

3820 + MB = $210

 

Which is a better buy?

3820 is a sandy bridge part and 3770 is ivy bridge part which is newer and faster, go with the 3770

[DeadlyPilot]

1 minute ago, Enderman said:

The fact that it is a newer architecture and has a higher clock speed.

Seems very logical. Never looked at it that way.. Thanks!!

[DeadlyPilot]

Just now, i_build_nanosuits said:

3820 is a sandy bridge part and 3770 is ivy bridge part which is newer and faster, go with the 3770

Userbench tells me its 33% faster in single thread. Does that seem accurate?

 

[i_build_nanosuits]

Just now, DeadlyPilot said:

Userbench tells me its 33% faster in single thread. Does that seem accurate?

 

i'd say more around 20% overall...it depends what you are running on it, but it's defenetly faster by a noticeable margin...3770 is a pretty fast chip even by today's standard if you're building a gaming PC it's a very good choice at those prices.

[DeadlyPilot]

1 minute ago, i_build_nanosuits said:

i'd say more around 20% overall...it depends what you are running on it, but it's defenetly faster by a noticeable margin...3770 is a pretty fast chip even by today's standard if you're building a gaming PC it's a very good choice at those prices.

I mentioned this earlier in another thread, but is a benchmark like r15 good for comparing very different architectures? I'm not sure what the best method is for comparing an older architecture to say something like skylake or kabylake.

[agent_x007]

i7 3820 = 10MB L3
i7 3770k = 8MB L3
3770k has a improved architecture, but I still think Quad Channel + more cache is the better deal.
i7 3820 is a LGA 2011 CPU (just FYI).
In future, you can buy a cheap Octa Core Xeon's (which is impossible for LGA 1155).

[DeadlyPilot]

4 minutes ago, agent_x007 said:

i7 3820 = 10MB L3
i7 3770k = 8MB L3
3770k has a improved architecture, but I still think Quad Channel + more cache is the better deal.
i7 3820 is a LGA 2011 CPU (just FYI).
In future, you can buy a cheap Octa Core Xeon's (which is impossible for LGA 1155).

In what situations would more cache be better? I play FSX which likes a lot of L3 but also very fast single thread performance. So which one would most likely be better?

[RadiatingLight]

5 minutes ago, DeadlyPilot said:

I mentioned this earlier in another thread, but is a benchmark like r15 good for comparing very different architectures? I'm not sure what the best method is for comparing an older architecture to say something like skylake or kabylake.

R15 is multithreaded, but it is a good comparison for raw power.

[DeadlyPilot]

7 minutes ago, RadiatingLight said:

R15 is multithreaded, but it is a good comparison for raw power.

That's what I thought. I would imagine the whole idea of r15 is to give a good reference how any cpu handles modern software, but some people say it's not good for comparing older architectures. I don't understand why it wouldn't be

[agent_x007]

13 minutes ago, DeadlyPilot said:

In what situations would more cache be better? I play FSX which likes a lot of L3 but also very fast single thread performance. So which one would most likely be better?

I think You got the wrong idea here :
Single Thread performance in both 3770k and 3820, is almost exacly the same (with same clock speed).
So, L3 and IPC is not the right question.

The question is :
1) Do you intend to OC any of them (in which case i7 3820 will go higher) ?
2) Do you intend to update this system to a Hex/Octa Core later on (if not, go for cheaper one) ?
 

[DeadlyPilot]

1 minute ago, agent_x007 said:

I think You got the wrong idea here :
Single Thread performance between this two processors is almost exacly the same (st same clock speed). So, that is not the right question.
The question is :
1) Do you intend to OC any of them (in which case i7 3820 will go higher) ?
2) Do you intend to update this system to a Hex/Octa Core later on ?
 

Right but the 3770k is faster in single thread, but also has less cache which makes me wonder which is more important in an application that wants both single thread and high cache.

 

Not sure about upgrading, but with a high OC on the 3820, how much faster would it be than the 3770? I mean they are different architectures.

[agent_x007]

7 minutes ago, DeadlyPilot said:

Right but the 3770k is faster in single thread, but also has less cache which makes me wonder which is more important in an application that wants both single thread and high cache.

 

Not sure about upgrading, but with a high OC on the 3820, how much faster would it be than the 3770? I mean they are different architectures.

Give me an FPS difference between them then (since you are interested in games, right ?).

No they aren't.
Ivy Bridge is a 22nm Sandy Bridge (with few minor tweaks to core itself, Intel focus on iGPU with this one).

Side note : Ivy Bridge is also the first gen "paste" IHS CPU, while 3820 uses tin (just to have the complete picture).

[DeadlyPilot]

9 minutes ago, agent_x007 said:

Give me an FPS difference between them then (since you are interested in games, right ?).
No they aren't.
Ivy Bridge is a 22nm Sandy Bridge (with few minor tweaks to core itself, it's true that they went all-out... but only for integrated GPU).

Ivy Bridge is also the first gen "paste" IHS CPU, while 3820 uses tin (just to have the complete picture).

It's hard to find direct comparisons for FSX, because the range of settings/configurations and addons are incredibly huge. All I know is it will only use 4-6 cores, so it loves single thread performance. But also, people say that FSX benefits from more L3 cache

[DeadlyPilot]

11 minutes ago, agent_x007 said:

Give me an FPS difference between them then (since you are interested in games, right ?).

No they aren't.
Ivy Bridge is a 22nm Sandy Bridge (with few minor tweaks to core itself, Intel focus on iGPU with this one).

Side note : Ivy Bridge is also the first gen "paste" IHS CPU, while 3820 uses tin (just to have the complete picture).

Also, I forgot to mention I'm comparing the 3770, not the 3770k. 3770 is still faster in single thread than 3820 @ stock correct?

[Ekst4zy]

3770 you can't OC, 3820 you can. Take that into the account.

[agent_x007]

16 minutes ago, DeadlyPilot said:

3770 is still faster in single thread than 3820 @ stock correct?

Nope.
3820 and 3770 can boost to the same frequency of 3,7GHz, when 3 or 4 cores are used at the same time.

[Jumper118]

the 3820 can got to 5ghz+ and the 3770 cant  there is really no comparison. 

[DeadlyPilot]

2 minutes ago, Jumper118 said:

the 3820 can got to 5ghz+ and the 3770 cant  there is really no comparison. 

What will I most likely be able to reach?