【悲報】AMDのAM5ソケット (Zen 4向けX670 / B650チップセット)はDDR4を非サポートか、DDR5が高すぎてIntelのRaptor Lakeに惨敗へｗｗｗ [202114801]
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AMD's AM5 Will Launch With Only DDR5 Support for Ryzen 7000, Dual-Chipset Design
By Paul Alcorn published about 21 hours ago
DDR5 pricing concerns come to fore
https://cdn.mos.cms.futurecdn.net/ZaL7nnsxjgqQ8beZLLhcFX-970-80.jpg
(Image credit: AMD)
All signs indicate that AMD's next-gen AM5 socket platforms that will house the 5nm Ryzen 7000 'Raphael' processors will only support DDR5 memory when they arrive later this year, but it isn't official. However, we have now confirmed through multiple sources in the supply chain that the X670 and B650 AM5 platforms support only DDR5 memory, which has pricing implications for platforms built around AMD's upcoming Zen 4 processors. Additionally, we've also confirmed that AMD has moved to a chiplet-based design for the chipsets for its AM5 motherboards, so some models will come with two chipset dies.
Given the long-lived eye-watering pricing we've seen for DDR5 memory, AMD's choice to only support DDR5 could prove to be a disadvantage in the face of Intel's Raptor Lake, which we have confirmed will continue to support both affordable DDR4 and expensive DDR5 memory, enabling two pricing tiers for Intel platforms.
AMD has already announced that its AM5 socket platforms, which will replace the aging AM4 platform, will support the PCIe 5.0 and DDR5 interfaces as we see with Intel's Alder Lake — but AMD hasn't confirmed that DDR4 support isn't an option. Our sources tell us that the X670 and B650 motherboards have no provisions for DDR4 support, and it isn't yet clear if Ryzen 7000's memory controllers even support DDR4. If they do support DDR4, AMD could have plans for lower-tier A-Series motherboards with DDR4 support, but we're told that doesn't seem likely.
DDR5 continues to be far more expensive than DDR4, and for little to no performance gain in many applications. While DDR5 availability and pricing have improved over the last few months, DDR5 marks the first generation of mainstream memory with onboard power management ICs (PMICs) and VRMs. Unfortunately, those have been in constant shortage due to the pandemic.
To highlight the current difference in pricing, below you can see a quick comparison of two low-end kits (DDR4-3200/DDR5-4800) and two higher-end kits (DDR4-4000 (for Gear 1 OC)/DDR5-6400). As you can see, the low-end and high-end DDR5 kits are well over twice the price of comparable DDR4 kits, and we don't think those types of premiums will end any time soon.
DDR4 vs DDR5 Pricing
32GB Kits (2 x16GB) Model Price
DDR5-4800: Crucial 32GB CT2K16G48C40U5 $257
DDR4-3200: G.Skill Aegis 32GB F4-3200C16D-32GIS $109
DDR5-6400: G.Skill Trident Z5 RGB Series 32GB F5-6400J3239G16GX2-TZ5RK $449
DDR4-4000: G.Skill Trident Z Neo Series 32GB F4-4000C18D-32GTZN $169
Micron expects PMIC/VRM supply to rebound in the second half of 2022, so we could see the situation improve as AMD's Zen 4 Ryzen 7000 processors come to market, but it is best to temper your expectations. DDR5 pricing will fall as PMIC and VRM supply improves, but recent China lockdowns and ever-increasing lead times indicate it could be some time before we see that come to fruition. Additionally, DDR5's more complex power circuitry and design mean that these modules will continue to command a premium over DDR4. DDR5 also has in-built ECC mechanisms for data at rest, which requires additional dies to provide the same memory capacity as DDR4. Though the pricing differences will become smaller over time, DDR5 will remain more expensive than DDR4, regardless of supply.
That means Intel will likely have a platform pricing advantage with readily-available DDR4 platforms, and that will pay off the most in the high-volume mid-range and low-end segments.
If it's any consolation, AMD has said that it has focused on DDR5 overclocking performance with its Zen 4 Ryzen 7000 platform, saying "[...]speeds that you maybe thought could not be possible, may be possible with this overclocking spec." Additionally, although we don't see massive performance gains with DDR4 vs DDR5 on Intel platforms, AMD's Zen 4 architecture might extract more substantial performance gains from the speedier memory. Time will tell.
AMD Chiplet-Based AM5 Socket Chipsets and Motherboards
Last week a report emerged suggesting that AMD will use a dual-chiplet design for AM5 platforms. ASMedia, AMD's long-term chipset partner, will provide the chips (fabbed on TSMC 6nm). We confirmed that the dual-chipset design applies only to the X670 platform, while B650 motherboards (and presumably A-series) will come with only one chip.
AMD's mainstream B650 platform will come with a single chipset chip that connects to the Ryzen 7000 CPU via a PCIe 4.0 x4 connection, though documents we've seen say that a PCIe 5.0 connection is available on some AM5 processors. This single chip provides eight lanes of PCIe 4.0 (four lanes for M.2 storage), four SATA ports, and a number of USB ports.
Meanwhile, the enthusiast X670 platform employs two of these chips (our sources confirm the chips are identical, not a north/southbridge-type arrangement), effectively doubling these connectivity options. This stands in contrast to AMD's approach with the current 500-series motherboards, which use different chips for the X- and B-series motherboards. The new approach will obviously provide cost and design flexibility advantages.
The Bigger Picture
AMD's current Socket AM4 has soldiered on from 2017 to today, housing five generations of chips spanning from Excavator to Zen 3 and supporting both the PCIe 3.0 and 4.0 interfaces. However, while the AM4 platform has earned the company plenty of kudos from enthusiasts — you can upgrade a motherboard from 2017 with the current best CPU for gaming that was released a mere ten days ago, the Ryzen 7 5800X3D — that longevity has limited the company's ability to move forward to the most advanced connectivity options, giving Intel's Alder Lake the upper hand.
Timing a memory transition to coincide with affordable pricing is incredibly difficult, even in the best of times, and the ongoing global chip shortage was unforeseen a few years ago when AMD's Zen 4 chips were entering the design stages. AMD is obviously plumbing its AM5 socket for a long life span, so adding in support for what will soon be an older interface, DDR4, could require tradeoffs and design compromises that wouldn't make sense over the long term.
However, AMD's decision to use DDR5 exclusively means you might have to pony up some extra cash compared to competing Intel Raptor Lake platforms, at least with the inaugural Zen 4 Raphael chips for Socket AM5. As a result, much like we saw with AMD's high-priced debut for the Ryzen 5000 processors (AMD just finally released lower-cost Zen 3 chips a year and a half later), you can expect to pay a premium for AMD's Ryzen 7000 platforms when they arrive later this year.
https://www.tomshardware.com/news/amds-am5-platform-for-ryzen-7000-launches-with-ddr5-support-only-dual-chipset-design Zen 4! Zen 4!って息巻いてたAMD信者さん… どっちにしろ今からマザボ換えるからDDR5対応にしたほうがよくね？ DDR5なんてキチガイゲーマー以外必要ないしあと5年はzen3で十分だな DDR4使うくらいならRyzen使う意味無いわwww いまのうちにDDR5買っといたほうがいいのか
これからますます上がるだろ ASRockは日本広報のアスク原口がウザくて買わなくなった たけーメモリ使わせるならちゃんとグラも賄えよ
なんのための高速メモリだよ DDR5でいいだろ
今からRyzen買おうなんてやつがそこ気にするわけないだろ >>13
DDR5は内臓GPUのほうが恩恵でかいみたいよ
つまりゲーマーにはあまり必要ない >>17
今使わないなら待ちだろ
DDR5も性能上がっていくんだし zen4ガチで性能高いらしいな
Intelの次のやつも割りといいみたいいい時代になったもんだわ Sandy2600から3700Xに乗り換えて早2年か
後3年位はこれで余裕だろ DDR5が主力になったらどうせ今よりクロックの高いメモリが流通するからな
数年はDDR4の3600くらいで十分 まだDDR4でいう2133とか2666レベルなんだろ？早いの出るまでもう少し待つわ その代わりにマザーボードはCPUが何代も変わっても使えるから結局お得だね 3DVCache搭載Zen4出たら全ツッパするわ･･･1年掛かりそうだけど DDR5ってDDR4の倍の金額じゃん
アホらしいとは思わんか？ zen4の3DXは来年なんだよな
最初から出してくれよ FastPage→EDO
EDO→SDR
SDR→DDR
DDR→DDR2
DDR2→DDR3
DDR3→DDR4
の度に見てきた光景
SD→RD？しらんな >>8
持ち上げてくれて俺は感謝しとる
2600kから3800xに変えた時は最後の時期良しだと思ってる zen2zen3で買わなかったやつはもうコスパ云々は手遅れだ
諦めろ 最初からその予定だし、安く上げたいなら今の世代のやつでいいじゃん
intelは何もしてないのに勝手に死んだし 出たばかりだとDDR4とそんなに速度変わらないのでは？ Zen4Ryzenはコア数据え置きなのにTDP爆上がりだからアッチアチでヤバそうとか言われてるな sandy2400だったが今日i3-12100が届いた
10世代ぶりだねえ >>17
そのうちDDR5-6400が主流になるから、今買ったら32GBで7万前後と糞高いぞ IntelもなるべくDDR4を採用しないようにマザボメーカーにお願いしてたぞ そろそろpc組み直したいんだが、何買ったらいいか全くわからん >>45
そうか？動画エンコでCPUとGPU酷使してるけど 12700T買うたけどDDR5もZ690も高いからB660とDDR4流用で落ち着いたわ APUの出来が下馬評通りならGPU代をメモリに回して組めるはずだ じゃあ5800x3dでいいな
これで心置きなく買える 2700xで全然困ってないんだけどzen3にしたら幸せになれる？ メモリーは1年もすればだいぶ下がるから年末頃にはだいぶ下がるはずだが raptor lakeってddr4サポートするのか ここは安くなったZen3で既存のAM4機を強化しつつZen4&Raptor世代は見に回るのが上策 Zen4はメモリがDDR5で高いとかどうでもよくなるぐらいCPUでボッてくるからw
殿様AMD+円安+カスク税のトリプルパンチでRyzen 7800X？で7万突破するだろうよw DDR5は高い＆性能が出てないで最悪の時期だぞ
Zen4も5200までしかサポートしないし値段とメモリ性能が釣り合ってない
DDR4で凌げるだけ凌ぐ時期 x570にzen3とDDR4で壊れるまで粘る
賢明だっ…俺が賢明っ…！！ プレステやXBOXみたいに、GDDRメモリをメインメモリに出来ないもんなの？
ソケット化出来ないならマザーボードに付けてしまえば良いじゃん 5900Xを10年ぐらいは使う予定だからなんでもいいな 今と同じ環境にしようとしたら価格が2倍以上で話にならない 言うてもIntelももうDDR4切るだろ
そうしないといつまで経っても移らないし安くもならん 完全にAM2の時の二の舞コース
ラプターレークが性能よかったらマジで終わる 今DDR4の人は壊れた時用に予備買った方が良い
店から無くなるよ 今Ryzen使ってるやつはマザーそのままで5800X3Dか5900Xか5950Xに載せ替えてZen4を見送るのが良いよ だからワイがコスパ気にしてるようなやつはDDR4より早いDDR5まともに買える値段に落ち着くのは数年先
で毎回買い替えるようなボルジョワ以外身動きとれんからさっさとzen3で組んどけっていうたのに
DDR5期待おじさん･･･ 円安で時期が悪そうだけど今年の次世代CPUで買い換え予定
現情報ではi5 13400を旧チップセットDDR4マザボに乗せる感じになりそう
グラボ以外はコスパ重視にしたい >>74
円安以前に原材料がどうたらこうたらで入手困難になる可能性があるから今買えるものでさっさと組むのが吉 LGAになるんだな
これでようやくスッポンしなくなるのか >>80
3200以上も含めたデータないの？
今の自作市場で2133なんて誰が使ってるんだよ
2133って今のDDR5でいう4800だぞ
こんなもんが安くなったって
その頃には6000対応してる可能性もあるし買わねーわ >>81
新しい規格の製品が安くなるまでの期間を示してるのであって、クロックは論点にないから 3200(8x2、16x2)が安くなって売れ筋になったのなんて2019年位でここからさらに2、3年後の話で
このグラフの頃ならまだintel機のが強いから2133〜2666が主流だよ
初代ryzenの頃が2400(8x2)が安くて3200位まではそれなりに安かった
それもあってcorsairの安もんOCメモリ掴んでまともに動かねーいう奴が続出した プレミア動画編集やりたい金ない知り合いに
core76700k 16G gtx1070の中古デスクトップ勧めたけど合ってる？ DDR2DDR4はスルーしたからそろそろ買い換えか DDR5メモリ 32gbで4万とかワロエネー
64詰むのに8万て >>84
どのくらいお金が無くて
どのくらいの動画編集なのか？
どのくらいの長さの動画編集なのかによる
まぁフルHD1920×1080くらいまでの想定なら何にしろ
その中古性能でも別に問題無いとは思う
SSDやHDDの容量が心配 DDR5はメモリコントローラーがボトルネックになってて例えばApexなんかはDDR4で高速なメモリの方が高fps稼げるからな
メモリコントローラーがgear1で動作出来る周波数になるまで待った方がいい ■ このスレッドは過去ログ倉庫に格納されています
