Leo Says Ep. 65 - AMD Zen 4 is go, go, go

It has been some time, sorry it took so long - but today we have Episode number 65 with Leo focused on all things Zen 4 - ahead of the official launch. Let us know your views, so far, in the comments, we would love to hear. Have you already saved up for a new Zen 4 system? Or are you waiting to see how the reviews shape up first?

00:00 Start
00:31 Recap / leaks / Thoughts
02:16 Four models
02:55 Ryzen 9 7950X
03:29 What is coming / tech talk
07:45 Efficiency for desktop
08:15 CPU roadmap
08:32 New Socket AM5
09:49 EKWB Chart and heatspreader chat
10:42 Chipsets and capabilities
11:24 AMD EXPO Technology
12:01 V 12900k & Pricing
13:23 Ryzen 5 v Core i5
13:52 AMD Declaration
14:17 Leo chugs a beer and shares thoughts
15:42 AMD didnt make a big deal about / IGP
17:18 L2 cache has doubled
17:43 3D V-Cache versions
18:14 Leo is in a slightly different position …

Leos' Notes
AMD has been talking about AMD Zen 4 Raphael for months now https://bit.ly/3AMw41K

Factor in the rumours and we have long known core counts, support for DDR5, the peculiar look of the new LGA CPU, and the fact the new AM5 socket is compatible with existing coolers.

And now AMD has officially announced the details of Zen 4 Raphael desktop CPUs and X670 motherboards which will go on sale on 27th September https://bit.ly/3Rjes4z

Ryzen 9 7950X $699 16C/32T 4.5GHz, up to 5.7GHz, 80MB, 170W
Ryzen 9 7900X $549 12C/24T 4.7GHz, up to 5.6GHz, 76MB, 170W
Ryzen 7 7700X $399 8C/16T 4.5GHz, up to 5.4GHz, 40MB, 105W
Ryzen 5 7600X $299 6C/12T 4.7GHz, up to 5.3GHz, 38MB, 105W

Any comparisons between Ryzen 9 7950X and Ryzen 9 5950X use different chipsets and different RAM
Any comparisons between Zen 4 and Alder Lake ignore the imminent 13th Gen Raptor Lake
Process for chiplets down from TSMC 7nm to TSMC 5nm. IO die uses TSMC 6nm rather than Glo Flo 12nm so it's TSMC across the board.
Presumably the X670 and B650 chipsets are also made by TSMC.
DDR5 memory support only. Aim for DDR5-6000 and budget £250-£300 for a 32GB kit
AM5 uses a new LGA 1718 socket that can supply up to 230W
Ryzen 9 TDP is 170W
Supports PCIe Gen 5.0 graphics and storage
X670 Extreme, X670, B650 Extreme and B650 chipsets segmenting PCIe Gen 5 graphics and Gen 5 storage
AMD Advantage - both CPU and GPU along with Direct Access Memory

Ryzen 7000 includes a tiny RDNA 2 IGP
L2 cache has doubled from Zen 3, L1 and L3 remain the same. Cache latency is slightly slower for Zen 4 than Zen 3
Workloads that fit in the new, larger L2 should be very fast
3D V-cache versions are due to be announced at CES in January 2023

#Zen4 #AMD #Ryzen