help picking out a CPU

[GarytheGeek]

@nikolaizombie1  

it said right here that it is 120hz. 

(of course it could be wrong)

[nikolaizombie1]

2 minutes ago, GarytheGeek said:

a lot of people have been telling me on the form that the 7th generation intel is too old and so should not be considered. can someone educate me on why age is important if the 7th gen i am considering has the same performance, if not better? (price set aside) i cannot find one good 8th gen i7 with 8 cores

Let me boil it down in the most simple terms possible. The is a hidden trait within newer generation of cpu's called ipc (instructions per clock). Basically in lamens terms determines how many instructions cpu can process per cycle. Newer cpu have higher ipc, older cpu have lower ipc. The gigahertz on the cpu does not determine speed entirely. Kind of like getting a new 60hz monitor and having an having and old crt and saying the crt is better because it has over 150 hz. It just isn't that simple.

[GarytheGeek]

@nikolaizombie1  

ok, that makes sense. thank you

[nikolaizombie1]

5 minutes ago, GarytheGeek said:

@nikolaizombie1  

it said right here that it is 120hz. 

(of course it could be wrong)

That might be false advertising on amazons part, from lenovos own specs it says this: 47-63hz

[nikolaizombie1]

2 minutes ago, GarytheGeek said:

@nikolaizombie1  

ok, that makes sense. thank you

You're free to ask me whatever you want. I'll just answer tomorrow. 

[brob]

15 minutes ago, GarytheGeek said:

a lot of people have been telling me on the form that the 7th generation intel is too old and so should not be considered. can someone educate me on why age is important if the 7th gen i am considering has the same performance, if not better? (price set aside) i cannot find one good 8th gen i7 with 8 cores

If your principal use of the system is gaming or lightly threaded applications like Photoshop then the current Coffee Lake i7 are, bar none, the best choice.

 

The i7-7820X etc. are part of the Intel HEDT platform family. These cpu are designed for use in workstations systems. In order to judge performance one has to look at actual benchmarks. Just because two cpu have the same number of cores and threads and are rated at the same speed does not mean they have the same performance.

 

If you want 8 cores in a Coffee Lake cpu, just wait a few months. New Intel desktop cpu are expected soon and the top end is expected to be an eight core model. But I do wonder why you are looking for an 8 core cpu. What is the magic in that number?

[GarytheGeek]

6 minutes ago, brob said:

If your principal use of the system is gaming or lightly threaded applications like Photoshop then the current Coffee Lake i7 are, bar none, the best choice.

 

The i7-7820X etc. are part of the Intel HEDT platform family. These cpu are designed for use in workstations systems. In order to judge performance one has to look at actual benchmarks. Just because two cpu have the same number of cores and threads and are rated at the same speed does not mean they have the same performance.

 

4

i look at benchmarks, from cpubenchmark.net and they say that the 7820x is faster than any 8th gen i7. i do not care that much about 8 cores. i just want to future proof my computer. i am also looking at the 8086k and 8700k, which are both 6 cores. 

[brob]

I guess I should have been more explicit. One has to look at benchmarks for the various games and applications that will be used. Sites like cpubenchmark.net provide a very rough comparison. If you look at the detail it does provide, https://www.cpubenchmark.net/compare/Intel-i7-7820X-vs-Intel-i7-7900X-vs-Intel-i7-8700K/3038vs3056vs3098, you will see that the i7-8700K single thread performance is about 12% better than the i7-7820K. Programs like Photoshop and most games will therefore performs about 12% better on the i7-8700K even though it has the lower passmark score.