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AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

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Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#11

Post by db48x »

joshvm wrote: post #10
neogodless wrote: post #4

Earlier quoted context omitted.

The Ryzen 9 5950x launched just under two years ago at $800. This is an improvement on those prices. The improvements in IPC over the original Zen core of the EPYC 7281 are quite substantial, and AMD is in a much better position than it was those five long years ago.

One downside is that the TDP is almost doubled (170/~230 W vs 105/140 W for default/PPT) which may be a dealbreaker - certainly for my SFF system where I'm not sure I can cope with another 100W. These are limited by the socket really (AM4/AM5), but still it's nice to have that many threads in such a low power budget. I'm more curious to see what the 32-thread competition turns out to be in the same TDP bracket.

TDP are made up numbers. Since they are arbitrary, you can't meaningfully say that they have doubled.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#13

Post by wmf »

db48x wrote: post #11
joshvm wrote: post #10

Earlier quoted context omitted.

One downside is that the TDP is almost doubled (170/~230 W vs 105/140 W for default/PPT) which may be a dealbreaker - certainly for my SFF system where I'm not sure I can cope with another 100W. These are limited by the socket really (AM4/AM5), but still it's nice to have that many threads in such a low power budget. I'm more curious to see what the 32-thread competition turns out to be in the same TDP bracket.

TDP are made up numbers. Since they are arbitrary, you can't meaningfully say that they have doubled.

It's not that made up. 5950X used 120-140 W and I expect the 7950X to use 210-230 W. AMD said that the increased multicore performance comes from a higher power limit.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#14

Post by ben-schaaf »

rektide wrote: post #2

I'm mixed. Definitely a very competent chip, great perf & efficiency gains, a fairly lovely new platform. $700 for the 16-core 7950X chip is well into HEDT price range, and while this has the CPU oomph everything else is missing. It's more $/core than what EPYC launched at, with a 16 core EPYC 7281 running $650. That had half the MHz & wasn't as good an architecture, but it also 128 lanes of PCIe (3.0 in Naples then…

So for a similar launch price you get >2x the performance, almost identical pcie bandwidth (4x28) and faster memory (less of it though). Seems pretty great to me?

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#15

Post by kaladin-jasnah »

encryptluks2 wrote: post #9
kcb wrote: post #6

Love that these include a basic igpu. Makes them much more viable for home server and low end desktops(when eventually discounted).

Yeah, but Intel has the advantage of providing vGPU support for their integrated graphics. I don't think there is anything really stopping AMD but wanting money.

Intel barely supports this anymore to me, and their SRIOV support has not been publicized anywhere from what I can see beyond a commit on GitHub. Furthermore, they are not including this on Arc dGPUs from my understanding, so I imagine Intel is moving this to datacentre GPUs only as well.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#16

Post by randtrain34 »

scrlk wrote: post #12

AMD is giving Intel a bit of breathing space at the lower end of the product stack, the 7600X price/perf isn't that great when you factor in the requirement for DDR5 + new AM5 socket.

absolutely, i3 and i5 Alder Lake is incredible value already and Raptor Lake will improve that even more

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#18

Post by velox_io »

ben-schaaf wrote: post #14
rektide wrote: post #2

I'm mixed. Definitely a very competent chip, great perf & efficiency gains, a fairly lovely new platform. $700 for the 16-core 7950X chip is well into HEDT price range, and while this has the CPU oomph everything else is missing. It's more $/core than what EPYC launched at, with a 16 core EPYC 7281 running $650. That had half the MHz & wasn't as good an architecture, but it also 128 lanes of PCIe (3.0 in Naples then…

So for a similar launch price you get >2x the performance, almost identical pcie bandwidth (4x28) and faster memory (less of it though). Seems pretty great to me?

It's good that AMD doubled the lanes on the PCH as 4 was a real limit (some of the higher-end motherboards have 3xM.2s plus Wifi etc hanging off the PCH, so definately a bottleneck).

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#19

Post by rektide »

ben-schaaf wrote: post #14
rektide wrote: post #2

I'm mixed. Definitely a very competent chip, great perf & efficiency gains, a fairly lovely new platform. $700 for the 16-core 7950X chip is well into HEDT price range, and while this has the CPU oomph everything else is missing. It's more $/core than what EPYC launched at, with a 16 core EPYC 7281 running $650. That had half the MHz & wasn't as good an architecture, but it also 128 lanes of PCIe (3.0 in Naples then…

So for a similar launch price you get >2x the performance, almost identical pcie bandwidth (4x28) and faster memory (less of it though). Seems pretty great to me?

8x DDR4-2666 -> 2x DDR5-5600 is half the memory throughput too. That was the first thing that made my head scratch; having much bigger cores & still lots of PCIe throughput, but way less memory bandwidth.

That said, 8x DDR4-2666 also scaled up to 64c chips in Naples, this isn't unreasonable.

Re: AMD Details Ryzen 7000 Launch: Ryzen 7950X and More, Coming Sept. 27th

#20

Post by db48x »

wmf wrote: post #13
db48x wrote: post #11

Earlier quoted context omitted.

TDP are made up numbers. Since they are arbitrary, you can't meaningfully say that they have doubled.

It's not that made up. 5950X used 120-140 W and I expect the 7950X to use 210-230 W. AMD said that the increased multicore performance comes from a higher power limit.

I’ve no doubt that the newer cpu will use more power, but the numbers are made up. They’re picked by the marketing department using a formula, and calling them “watts” to try to make them look like energy used or heat dissipated doesn’t make them real. They don’t correspond to numbers that you can actually measure in any way.
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