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AMD Ryzen 7 3700X, 3800X and Ryzen 9 3900X

202K views 775 replies 212 participants last post by  artaud 
#1 ·
SUMMARY NOTES
AMD CPU launch will be  7.7. 2019 


New chipset name is AMD X570 with PCIe 4.0. (on the photo is Crosshair VIII motherboard)


IPC improvement is high 15%! It was supposed to be originally 10%. Doubled  FP and also doubled size of cache.


CPUs can be up to 16C/32T in theory, AMD showed CPU with two chiplets.  At launch day minimal 3 models are ready.

Ryzen 7 3700X, CPU with high performance and clocks are  3.6 GHz baseclock and turbo up to 4.4 GHz and TDP only 65W (it is 8C/16T CPU)!

-much better performance than current flagship Ryzen 7 2700X (propably close to 9900K in performance)

Ryzen 7 3800X is again eightcore with SMT, baseclock 3.9 GHz and turbo up to 4.5 GHz, TDP 105W

Surprise is the 3800X defeat i9-9900K not only in multithread  CinebenchR20 benchmark, but also in single thread. And i9-9900K has much higher clocks for single thread ( 5 GHz).

Finally, new Ryzen 9 is here! Information about the incoming  flagship Ryzen 9 3900X with 12C/24T. Default clocks is 3.8 GHz and turbo up to 4.6 GHz. TDP is still solid 105W!

performance demo test against Intel HEDT i9-9920X :)...

Price list.
 
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#2 ·
can we see a performance comparison between equally prices intel comparison including the new i9-9900KS. I think this looks like a clear win for AMD, but by how much is interesting question, especially for gaming. I'm also not too enthused by Navi at this point.
 
#6 · (Edited)
It looks like the 9900K/3800X are pretty much identical. What I don’t understand is how the 9700K is getting walloped by the 3700X, you’d think there was a core count difference or something...?

Nice to see AMD competing on an IPC level again. Hopefully this will drive Intel to do some real R&D and bring down their prices.

The 3900X looks like an awesome bargain!
 

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#8 ·
Oh that’s right, I forgot about the hyperthreading bit. That makes sense.

Are you sure the 3700X and 3800X are the same? The 3700X is only 65W but the 3800X is 105W.
 
#11 ·
That board will probably cost more than the chip. Yuck. Asus sells too many boards. If you are going to spend the money for Asus, at least get a TUF series board for the reliability and 5-year warranty.
I would assume it's the same hardware design, it's just the turbo clocks set up differently for the default BIOS settings. The 105W model will keep the clock higher when all cores are in use.
It will be interesting to see overclockability. Perhaps the 65W will limit the chip and is a way to get people to pay for the faster chip.

Either way, I couldn’t imagine not spending the extra $100 to go right to the 3900X... and for how long a desktop can last it is obviously the best choice for anyone building a new system.
 
#13 ·
The difference in power between these CPUs is interesting...

Ryzen 9 3900X
7nm 12/24
3.8 / 4.6 GHz
105W
499 USD

Ryzen 7 3800X
7nm 8/16
3.9 / 4.5 GHz
105W
399 USD

Ryzen 7 3700X
7nm 8/16
3.6 / 4.4 GHz
65W
329 USD

Ryzen 5 3600X
7nm 6/12
3.8 / 4.4 GHz
95W
249 USD

Ryzen 5 3600
7nm 6/12
3.6 / 4.2 GHz
65W
199 USD

The 3600X has a higher TDP compared to the 3700X, with only 0.2 GHz higher base clock and the same 4.4 GHz boost clock, while having 2 cores less...
The 3600 has the same TDP as the 3700X, despite having 2 cores less, the same base clock and a lower boost clock...
The 3800 and 3900 have the same TDP, despite the 3900 have 4 additional cores (that's 50% more cores), with only 0.1 GHz lower base clock and a 0.1 GHz higher boost clock...

If this was a leak, I would call it fake lol...
But in all seriousness... We know that the 3900X uses two 6 core chiplets. These are definitely binned much higher compared to the 3600 and 3600X. I don't think the 3600 and 3600X are using two 3 core chiplets. Maybe they are also binning the I/O dies to lower power consumption on the more expensive parts, because I see no other way that the TDP could be like it is now.
 
#32 ·
It tells me AMD is Sandbagging. They likely are holding back some of the higher quality chiplets this time around for an x50 refresh down the line (and also for Threadripper) in response to any desperate moves by Intel. Stuff like this happened the last time AMD and Intel did the rounds with the Athlon/Athlon64/AthlonFX and Pentium 3/4.
 
#15 ·
The big chip is the IO die while the smaller chiplets are the the actual 8 core CPU dies.

How they are set up we will see. I will take a guess and say the R7 3700X is a single CPU die while the R7 3800X is two chiplets with 4 cores active each. But we'll see if it's just binning or a difference in the topology between the two. We still don't know exactly where the caches are located etc. Might be the 3800X has more cache than the 3700X. But a bigger cache size on the R9 3900X suggests it might be located on the CPU dies.
 
#18 ·
Hey! A cpu thread in the AMD forums. Where is the motherboard thread?


Hmm. 3700X or 3800X?
 
#23 ·
I'm waiting till I get some benchmarks for the likes of Gamers Nexus or other third party sites before I hop on the hype train but I do want these to be good. With the issues Intel has been having with things like Specter and Spoiler my confidence in Intel is just not great. I realize me being effected by these issues is really slim but the performance hits from the "fixes" is something I'm just not ok with. I love the performance of my 8700k but I'll gladly sell it for some peace of mind
 
#25 · (Edited)
#26 ·
Anyone any thoughts on what UK pricing will be? I have a budget of around ÂŁ2k (including a good monitor).

I'm going to buy on 7th July (or 8th as 7th is a Monday).

I'm thinking:

Ryzen 9 3900X
Radeon VII
32GB DDR4 3000Mhz+
Samsung 1TB 970 PRO V-NAND M.2 (or PCIe 4.0 similar)
2TB HDD
Gigabyte mATX x570 Motherboard
850W PSU

My first upgrade in 7 years so pushing the boat out a bit so it hopefully lasts another 7 years!
 
#28 · (Edited)
How would X370 boards like the Crosshair VI Hero cope with the 3800X and 3900X? Will there be official support for the 3900X or would I have to upgrade to an X570 board?

Money's been tight so I can afford only the 3900X on X370 or else I would have to drop down to the 3700X or even the 3600X if I have to upgrade to X570, depending on pricing.
 
#31 ·
If the pricing is true. As much as I want to support AMD, I can nab a 9900k for 270ish with my employee discount for Intel. My eye was on the 3800x but I can get a 9900k much cheaper. Not worth it to do AMD no?

What technologies would the new Ryzen introduce I'd miss out on?
 
#42 ·
I was hoping for ryzen 5 with 8 cores, that would have been great. But since its not true, i will have to wait benchmarks and see if it will be worth paying extra for 8 cores over 6.

I think i will get 3600, 3600x or 3700x to replace my 1600x, while keeping my Prime x370 Pro.
 
#47 ·
Wait I actually just noticed the 3700x. *** is the point of a 3800x with a 3700x. Actually that makes no sense. Can anyone say why that thing exists? What the difference is? It would make buying a 9900k difficult in the sense of I really wanna support AMD
 
#51 ·
Ryzen 2000 series SKU and price segmentation was pretty generous compared to this as compared to first gen Ryzen. I find Ryzen 3000 series to be somewhat confusing for still topping at 8 cores at R7 segment as it has been with the 1800X, 1700X and 1700. Motherboard pricing isn't very attractive in X570 finding it hard getting this over X399 or the future X499. I'll be staying on TR4 but will be getting an ITX for a 12 or 16 core mobile workstation build.

My expectations before Computex is increased core counts to trickle down across the stack hoping that:
R9 would be 2 16 core SKUs
R7 be 2 12 core SKUs
R5 be 2 8 core SKUs
R3 be 2 6 core SKUs
And leave out quad cores as Athlons at the bottom of the stack.

To me this means X470s R7 2700 and 2700X owners see very little reason to upgrade other than for new platform features and IPC uplift.

Computex keynote as expected pretty meh as always from AMD but still positive energy of the company's position moving forward.
Good for stockholder as this means big confidence of whats to come. I smell a bit of complacency from AMD if third gen Ryzen topped at 12 cores for the rest of the year and releasing 16 in a refresh.
 
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