PCIe Gen 3 vs Gen 4

[trparky]

I'm in the market to get a larger SSD but I (more than likely) will upgrade to a system with PCIe Gen 4 on it. I have a PCIe Gen 3 SSD right now. Is it worth it going for a PCIe Gen 4 SSD to be future proof or will I not see much of a difference in real world performance when comparing Gen 3 to Gen 4?

 

[AlwaysHope]

It depends what usage this computer is planned on having?

 

[thesmokingman]

I'm in the market to get a larger SSD but I (more than likely) will upgrade to a system with PCIe Gen 4 on it. I have a PCIe Gen 3 SSD right now. Is it worth it going for a PCIe Gen 4 SSD to be future proof or will I not see much of a difference in real world performance when comparing Gen 3 to Gen 4?

Gen4 doesn't really make much difference for normal workloads or gaming or much of anything really. A case where it will make a good difference is when moving large amounts of data. And on an nvme drive, that is cost prohibitive unless you are running a nvme raid array like on a threadripper or similar system doing video editing for example. That's when a huge 8TB nvme 4x raid array will pay actual dividends. Otherwise I wouldn't necessarily over pay just for gen4. But if given the choice between the two, I'd go gen4 just for future options.

Build: 3970x, dual 2080ti, 8TB m.2 RAID = Render Monster

Setup hwinfo and RTSS, kind of time consuming but it is nice. Probably on Sun evening we'll start loading the content apps and get to hammering it with some real loads. I need to take some final shots too I suppose. Also, this loop is configured to monitor water temps and not cpu temps, to...

hardforum.com

 

[MIRTAZAPINE]

If you mean by general responsiveness in general use, you would not feel a perceptible difference at all aside from looking at benchmarks. There have not been much improvement in random io speed even between very good Sata based ssd versus PCIe 3. The improvement to PCIe 4 is largely sequential speed which helps in bigs writes like files transfer copy.

 

[thesmokingman]

If you mean by general responsiveness in general use, you would not feel a perceptible difference at all aside from looking at benchmarks. There have not been much improvement in random io speed even between very good Sata based ssd versus PCIe 3. The improvement to PCIe 4 is largely sequential speed which helps in bigs writes like files transfer copy.

It's not that good for file transfer because the speed in or out is limited by the other side. Thus it really only leaves something that is created in a large ass array like a scratch drive in video editing or a database housed in that space. For normal user real world you're not moving anything in or out faster.

 

[trparky]

So basically, I'd not see any major difference in performance between that of a Samsung 980 and a 980 Pro even if I had a PCIe Gen 4 system. Got it.

 

[MaNsİoN35]

It depends on what you're going to use it for. I don't think it's necessary for now.