Memory by 9XXX / Memory by 8XXXG / Memory by 7XXX - What does it mean?

..Ray..

..Ray..

..Ray..

Associate
Joined
29 Jan 2025
Posts
10
Location
Bedford
Hi PC Whizzes!

I'm trying to compile a list of parts for my first modern PC build, that last one I built was an AMD Duron 700 back in 2001! so forgive me for being a bit slow.

I have been looking at various AM5 motherboards and reading their memory compatibility, however the following terms have me confused!

  • memory by 9XXX
  • memory by 8XXXG
  • memory by 7XXX

Are 9XXX 8XXXG and 7XXX a CPUs? and why does 8XXXG have a G? but not the other two?

I have seen a Ryzen 7 7000 CPU and a Ryzen 9 7900 CPU but I don't think I have seen a Ryzen 8 0000 CPU, which has me thinking that I'm missing something?
 
yes these are AM5 CPU generations, cpus like say 7950X, 8700G, 9950X
memory controller on these could be the determining factor for memory support, rather than just motherboard itself

and 8000 being different is because on desktop only APUs were released in that series (CPUs with stronger integrated graphics, monolithic and more capable of high memory clocks) and APUs are labeled G. Whereas for normal CPUs you could have X or no X
 
Probably best to say how much you want to spend on a CPU, your usage etc and people will give recommendation. It's probably too much to read up on what should be a simple choice.

Generally for gaming the X3D are the best. But they're not the cheapest. Nor if if you just want a basic PC with integrated graphics.

The GPU in the CPU is pretty good I have a Ryzen 7 laptop it's quite good for something part of the CPU.
 
Hey

Thanks for the welcome and replies,

Main use will be the wife for her Etsy store and online shopping, I will use it occasionally for iPlayer and years ago I used to play Microsoft Train Simulator, so I'm hoping to find some modern simulator games to try,

Budget for the base unit will start at £500 but is flexible and will probably be more like £800,

I haven't chosen any specific parts yet but I'm thinking along these lines:
  • Hard Drive - 500GB or 1TB
  • Memory - 32GB or 48GB
  • Graphics Card - 4GB or 6GB
  • PSU - 650W up to 850W
  • CPU - AM5
  • Motherboard - AM5

The motherboard and CPU don't need to be lightning fast or full of features that won't be used, just decent quality but there are so many to choose from!
 
..Ray.. said:
Hey

Thanks for the welcome and replies,

Main use will be the wife for her Etsy store and online shopping, I will use it occasionally for iPlayer and years ago I used to play Microsoft Train Simulator, so I'm hoping to find some modern simulator games to try,

Budget for the base unit will start at £500 but is flexible and will probably be more like £800,

I haven't chosen any specific parts yet but I'm thinking along these lines:
  • Hard Drive - 500GB or 1TB
  • Memory - 32GB or 48GB
  • Graphics Card - 4GB or 6GB
  • PSU - 650W up to 850W
  • CPU - AM5
  • Motherboard - AM5

The motherboard and CPU don't need to be lightning fast or full of features that won't be used, just decent quality but there are so many to choose from!
Click to expand...

Look for a Ryzen with IGP inside the CPU. Even my 7700 has a IGP and you don't even need to go that high.


www.overclockers.co.uk

AMD Ryzen 5 8600G Six Core 4.3GHz (Socket AM5) APU with Radeon 760M Graphics

Order AMD Ryzen 5 8600G Six Core 4.3GHz (Socket AM5) APU with Radeon 760M Graphics now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
 
Last edited:
That would be a good call but if the OP ends up playing Train Simulator Classic or Train Sim World he is going to need a proper graphics card as a APU just won't cut it, not even close.
 
Ideally I would like to avoid onboard graphics and just get a GPU,

Does anyone know if there is a common 32GB memory kit that will work with practically any AM5 motherboard/CPU?
 
hornetstinger said:
Don't know IGPU they've come along a far way. Terminator Resistance was playbable on 1920x1200.

checkout this

Click to expand...

To be fair that looks impressive! if I had onboard graphics and they were close to that I would be as chuffed as a badger at the start of mating season.
 
Just been having another look at the Tomahawk B650.

I have been onto the MSi forum and a few people have had problems using Corsair memory with that board.

Interestingly, when I went on to the Crucial website, it seems they are out of stock for every single memory kit they sell for that motherboard.

Having been onto the MSi website, I have spent half an hour copying and pasting model numbers from the Kingston website into the all 3 of the CPU options (9XXX / 8XXXG / 7XXX) and now have a list of 5 that are down as working with all 3.

  • KF556C40BBK2-32
  • KF556C36BBEK2-32
  • KF556C36BBEAK2-32
  • KF560C30BBAK2-32
  • KF560C30BBEAK2-32


The only way I have been able to find these kits available on Overlockers is by typing the model number and then Overclockers into Google, the results from typing the model number into Overclockers don't always match the model number I type in.

With the above kits, the main difference appears to be the voltage, as an example one is 1.25v and another says 1.35v - so my question is does that matter if I am not going to be over clocking it?

The RGB memory looks nice but our PC is usually only turned on if someone is using it so it's not like I can be reading the screen while admiring the lights, is there a way to turn them off and only switch them on if I fancy admiring it?
 
Most memory work regardless if it's on the qvl list for the motherboard, 6000mhz should be the standard as mentioned above C30 but as long as it's 6000mhz your good.

GPU the Rx6600 will let you play modern titles at 1080p .
 
..Ray.. said:
The only way I have been able to find these kits available on Overlockers is by typing the model number and then Overclockers into Google, the results from typing the model number into Overclockers don't always match the model number I type in.
Click to expand...
If OCUK don't have the exact model number from the QVL then you're likely to be buying a different kit altogether. That said, Kingston (or Corsair, or anybody really) don't guarantee that their sticks have the same memory chips, so there's no way of knowing for sure if the stick tested will be exactly the same as you purchase (unless you are Buildzoid and can tell what is being used by the speed and latency/timings).

..Ray.. said:
With the above kits, the main difference appears to be the voltage, as an example one is 1.25v and another says 1.35v - so my question is does that matter if I am not going to be over clocking it?
Click to expand...
Lower is better, less power use and less stress generally.

..Ray.. said:
I have been looking at various AM5 motherboards and reading their memory compatibility, however the following terms have me confused!
  • memory by 9XXX
  • memory by 8XXXG
  • memory by 7XXX
Click to expand...
The QVL lists are often sorted by the CPU generation and that is what this is.

7000 is Zen 4 (Raphael).

9000 is Zen 5 (Granite Ridge).

8000 are APUs (Phoenix). They have integrated graphics which is much more powerful than the basic graphics in the 7000/9000 CPUs.

Zen 5 is newer and likely to have memory controllers that work better than the early Zen 4 CPUs. There have been BIOS updates to support higher speed memory which did not exist (or was not realistically usable) with Zen 4.

Note that the QVL is not a guarantee, it only says that their tested CPU, tested board and tested memory worked together.

..Ray.. said:
Are 9XXX 8XXXG and 7XXX a CPUs? and why does 8XXXG have a G? but not the other two?

I have seen a Ryzen 7 7000 CPU and a Ryzen 9 7900 CPU but I don't think I have seen a Ryzen 8 0000 CPU, which has me thinking that I'm missing something?
Click to expand...
G is only used for CPUs that have integrated graphics you can game on, rather than just a basic display output (which is what 7000/9000 CPUs have, except for -F models which have none).

You're confusing the gen name with the position within that gen. Ryzen 7 is usually an 8-core and Ryzen 9 12-core or 16-core.
 
Tetras said:
Lower is better, less power use and less stress generally.
Click to expand...

I followed the advice above regarding CAS 30 and went with the Corsair, the CAS is 30-36-36-76 but the voltage is higher - 1.40v

The model number is down as being compatible with all 3 CPU generations on both the MSi B650 Tomahawk and also the ASRock B650 Steel Legend motherboards so hopefully I have played it safe
 
Just been browsing GPUs on Overclockers and came across the MSi GeForce RTX 3050 which is 8GB and also the 6GB version, are they any good?

There's only one 6600 model in stock at the minute.

Will we get to a point where all GPUs come with a black backplate? most cases seem to have black chassis these days

Thanks for all the pointers and advice given so far,


Just to touch on this...

rather than just a basic display output (which is what 7000/9000 CPUs have, except for -F models which have none).
Click to expand...

Does that mean that if I buy a CPU and motherboard tomorrow, as long as it isn't a -F model, I would be able to at least check it works without having to wait until I buy a GPU?

I notice a lot of sites say you only get a week to notify them that the item was DOA so being able to test it would ease my mind a little.
 
..Ray.. said:
Does that mean that if I buy a CPU and motherboard tomorrow, as long as it isn't a -F model, I would be able to at least check it works without having to wait until I buy a GPU?
Click to expand...
Correct.

..Ray.. said:
Just been browsing GPUs on Overclockers and came across the MSi GeForce RTX 3050 which is 8GB and also the 6GB version, are they any good?

There's only one 6600 model in stock at the minute.
Click to expand...
The 3050 6GB is pretty slow for a modern card, but it has one major advantage: no power connector is required.

The RX 6600 is around 25% faster than the 3050 8GB, which makes the 3050 poorly priced.

I would suggest you have a look at the Arc A750 Orc (£170 at OCUK), which is faster than the RX 6600 on average, but keep in mind:
- It has less mature drivers than AMD/nvidia do (some games don't work well, particularly some older ones and this might not be fixed).
- It has much higher idle power consumption unless you play in the BIOS and significantly higher load power.
- It has a more modern feature set than the 6600, which can be handy for productivity or HTPC usage (ray tracing is generally poor at this level of performance anyhow, but it is better at that too).
- Arc gains performance versus the competition as the resolution increases, but it requires rebar to be enabled for decent performance.
 
I have noticed a few sites who sell the B650 Tomahawk have started to show up as out of stock and some even say end of life.
Should I expect it to go up in price shortly in the places that still do stock it?

Choosing a CPU is challenging these days, what do people usually take into consideration?
Last time round it was a case of 600MHz/700MHz/800MHz/900MHz, the 600 would be slightly older and cheaper, the 900 would be newer and more costly, now though I see reviews on some older CPU's saying they are faster than a newer CPU.
Also late last evening I was looking at 2 CPU's with the same model number but one had X on the end and am sure one was 65w but the other was 105w.

The base GHz was significantly different but the boost GHz was similar, does boost GHz mean overclocking?
 
You must log in or register to reply here.
Back
Top Bottom