PSU question on first build

[wonderings]

So I have finally put everything together in my first build from scratch. Everything is brand new accept the power supply I was hoping to reuse from another PC. It is an OCZ 700W PSU https://www.newegg.com/modxstream-pro-ocz700mxsp-700w/p/N82E16817341018R

 

I am ready to plug in the power, I was going to connect my GPU first (Asus Strix RTX 2070) and noticed that the cables do not match up from the PSU to the GPU. On the GPU there are is a bank of 6 and a bank of 8. My PSU cable has a bank of 4 and another bank of 8. Now I am not the greatest at math but I do know these do not equal the same thing. Is this PSU too old for this GPU? The link I pasted above shows the connection options, it is all Greek to me. Just wondering if I need a new PSU or is it just some cable adapter thing I should be doing?

[hello_there_123]

That thing is a firestarter. 

[wonderings]

a twisted fire starter?

 

So is this thing obsolete?

[FALC0N]

6 minutes ago, wonderings said:

a twisted fire starter?

 

So is this thing obsolete?

It's not a fire starter.  That's hyperbole.  However, I would be inclined to replace it.  

[Fasauceome]

The 4 pin and 8 pin are for CPU, not GPU

[wonderings]

Think I will just go and look for a new one tomorrow at my local computer shop.

 

I am guessing a 650w PSU should be sufficient?

 

My build is:

 

i7 9700K

motherboard - Asus z370a - ii

GPU - Asus Strix RTX 2070

 

Was looking at this PSU on sale:

https://www.canadacomputers.com/product_info.php?cPath=33_442&item_id=129652