Help me understand bifurcation?

[battosai02]

Thanks in advance for any and all help!

 

So I'm looking into upgrading from an I7-6700k to a R7 7700x. I was looking at the ASUS TUF X670E-P first. As I looked into it I saw a lot of recommendations for the ASUS STRIX B650E-E instead. I tried looking at the tables on one of ASUS' pages here and I felt I understood the example they showed, but dont understand the table further down.

 

Is all of this just in regards to the PCIE slots, or does it affect the M.2 as well? My main concern is not having everything running the best that it can. I plan on upgrading from my GTX 1080 when the RX 7000 series comes out, and the storage devices I have currently have is 2 HDDs, and 1 SSD with 1 M.2 waiting for the new build. Here's the new build:

PCPartPicker Part List: https://pcpartpicker.com/list/wGZxmr

CPU: AMD Ryzen 7 7700X 4.5 GHz 8-Core Processor  ($329.99 @ B&H)
CPU Cooler: ARCTIC Liquid Freezer II 360 A-RGB 48.8 CFM Liquid CPU Cooler
Motherboard: Asus ROG STRIX B650E-E GAMING WIFI ATX AM5 Motherboard  ($349.99 @ B&H)
Memory: G.Skill Trident Z5 Neo RGB 32 GB (2 x 16 GB) DDR5-6000 CL30 Memory  ($224.99 @ Newegg)
Storage: Samsung 980 Pro 2 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive  ($234.50 @ Amazon)
Case: Lian Li O11 Dynamic EVO ATX Mid Tower Case  ($175.99 @ B&H)
Power Supply: Corsair RM850x (2021) 850 W 80+ Gold Certified Fully Modular ATX Power Supply  ($139.97 @ Amazon)
Operating System: Microsoft Windows 10 Home OEM - DVD 64-bit  ($107.99 @ Other World Computing)
Total: $1563.42
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2022-11-29 21:46 EST-0500

[Zando_]

That page is about compatibility for the Hyper M.2 PCIe cards. Are you using one of those cards for more SSDs? If not then just use the onboard M.2 slots like normal.

 

PCIe slot bifurcation is just splitting a hardware slot into sets of lanes on the CPU side. So instead of one x16, it acts as x8/x8 or x4/x4/x4/x4 for example.

[Dedayog]

More pcie lane worry. . You're fine, it has nothing to do with your drives.

 

Though I'm curious the Pro drive choice.  I think the marketing is doing it's trick.

 

Amazon has it for $189 fyi.

 

[battosai02]

28 minutes ago, Dedayog said:

More pcie lane worry. . You're fine, it has nothing to do with your drives.

 

Though I'm curious the Pro drive choice.  I think the marketing is doing it's trick.

 

Amazon has it for $189 fyi.

 

I appreciate it! It is something I would like to learn about one day. I'd like to just be more knowledgeable about things in general, as my friends often come to me for advice instead of forums or reddit. That being said, how does the rest of the build look? I know I'll have to get a few fans, and I'm still debating about reusing old components and selling what I don't need.

 

I picked the pro because I get discounts and obtained one for ~$165 from Samsung. I'm not a loyalist by any means, but I've never had a drive from them fail. Although I guess that is probably more of a "not if, but when" situation. What drive would you recommend? I'm in Nevada if that helps you in any decisions.

 

Again, thanks for everything!

[battosai02]

40 minutes ago, Zando_ said:

That page is about compatibility for the Hyper M.2 PCIe cards. Are you using one of those cards for more SSDs? If not then just use the onboard M.2 slots like normal.

 

PCIe slot bifurcation is just splitting a hardware slot into sets of lanes on the CPU side. So instead of one x16, it acts as x8/x8 or x4/x4/x4/x4 for example.

Got it, thanks! I did see that when I looked up the Hyper M.2, which is what spurred the question. I originally saw a pretty vague comment on yt talking about PCIE lanes and M.2 slots not running at full speed with the way boards are setup. Maybe I took it out of context, maybe they didn't know what they were talking about, but I'll put the blame on my ignorance.

[Dedayog]

7 minutes ago, battosai02 said:

I appreciate it! It is something I would like to learn about one day. I'd like to just be more knowledgeable about things in general, as my friends often come to me for advice instead of forums or reddit. That being said, how does the rest of the build look? I know I'll have to get a few fans, and I'm still debating about reusing old components and selling what I don't need.

 

I picked the pro because I get discounts and obtained one for ~$165 from Samsung. I'm not a loyalist by any means, but I've never had a drive from them fail. Although I guess that is probably more of a "not if, but when" situation. What drive would you recommend? I'm in Nevada if that helps you in any decisions.

 

Again, thanks for everything!

It's not a Samsung thing, it's a PRO drive thing.  Pro drives are designed for more production level machines that use huge files that can benefit from sustained transfer rates.  Gaming and 99% of other uses do not.

 

Ahh, I thought you bought one for the $234 in your post, I was trying to say you a buck or two.

[battosai02]

6 minutes ago, Dedayog said:

It's not a Samsung thing, it's a PRO drive thing.  Pro drives are designed for more production level machines that use huge files that can benefit from sustained transfer rates.  Gaming and 99% of other uses do not.

 

Ahh, I thought you bought one for the $234 in your post, I was trying to say you a buck or two.

Oh, fair enough. I guess in that sense it was more I wanted a 2TB SSD and the regular 980 only goes up to 1TB. I could've went with the Crucial P3 or the 970 EVO instead I suppose. So yeah, marketing most likely got me.

 

In a somewhat related note. What are your opinions on getting the 7700x vs 7950x. I really only game @1440 (might step up to 4K) and play VR right now, but I'm interested in video editing and such. My thoughts were upgrade to a 7700x and save a few bucks. Then on the last gen upgrade to a new CPU at that time.

[Dedayog]

9 minutes ago, battosai02 said:

Oh, fair enough. I guess in that sense it was more I wanted a 2TB SSD and the regular 980 only goes up to 1TB. I could've went with the Crucial P3 or the 970 EVO instead I suppose. So yeah, marketing most likely got me.

 

In a somewhat related note. What are your opinions on getting the 7700x vs 7950x. I really only game @1440 (might step up to 4K) and play VR right now, but I'm interested in video editing and such. My thoughts were upgrade to a 7700x and save a few bucks. Then on the last gen upgrade to a new CPU at that time.

Depends how deep you get into video editing. The 7700x seems to be the sweet spot for AMD gaming, and it's 8/16 is still great at multicore anything.  I would look at the 7950x if video editing was more than a hobby, like if you were looking at HEDT machines but didn't want to spend that much.

 

I'm going 7700x, will look at the 7700x3d (if they actualy come out with it) and then most likely build a new machine in 4-5 years and give this one to my kid or someone else.

 

It's not a bad idea to replace the 7700x with a new CPU in a few years as AM5 end of life nears.  

 

Look at 7700x vs 7950x gaming, and then 7700x video editing benchmarks, I think you'll be pleasantly surprised how well it does.

[Zando_]

49 minutes ago, battosai02 said:

I originally saw a pretty vague comment on yt talking about PCIE lanes and M.2 slots not running at full speed with the way boards are setup.

On most mainstream setups you have 24 PCIe lanes from the CPU, 4 go to chipset (which can split out to a bunch of stuff including M.2 slots that all share that bandwidth), 16 are for usually the top 2 PCIe slots (so 1 x16 GPU or two x8 GPUs/other cards if you use both slots), 4 for the usually single CPU-connected M.2 slot. It's a non-issue for most people as you aren't going to be putting all the things in your PC under 100% load at the same time so having additional drives or stuff like USB/Wifi cards go through chipset is fine.