<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[R9700 4卡 跑QFN 聚合 4583t/s ???]]></title><description><![CDATA[<p dir="auto"><a href="https://x.com/coldniko/status/2109371125129970071" rel="nofollow ugc">https://x.com/coldniko/status/2109371125129970071</a><br />
先说来源，这是作者昨晚公布的截图。 他说的10月14号那个大事件应该就是指的这个了。<br />
<img src="https://upload.lcz.me/uploads/569ab9be-ee76-44d9-a0d7-2cf4af654446.jpeg" alt="image.jpeg" class="img-markdown  img-fluid" /></p>
<p dir="auto">以下是我的HERMES调研结果：</p>
<h1>4×AMD R9700 跑 Qwen3.8-Flash-Next 可行性调研报告</h1>
<blockquote>
<p dir="auto">调研日期：2026-10-12<br />
触发来源：Strata 作者 @coldniko 推文截图（<code>~/dev/r9700x4.jfif</code>）<br />
调研工具：CBS（CloakBrowser + Google，共 3 轮搜索，约 140 条结果筛选）<br />
原帖地址：<a href="https://x.com/coldniko/status/2109371125129970071" rel="nofollow ugc">https://x.com/coldniko/status/2109371125129970071</a> （直连被反爬挡住，以截图为准）</p>
</blockquote>
<hr />
<h2>1. 截图内容还原（strata monitor 实况）</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>项目</th>
<th>数值</th>
</tr>
</thead>
<tbody>
<tr>
<td>模型</td>
<td>Qwen3.8-Flash-Next-<strong>IQ3_S</strong>（~3.44bit 混合量化）</td>
</tr>
<tr>
<td>硬件</td>
<td>4 × AMD Radeon AI PRO R9700（各 32G）</td>
</tr>
<tr>
<td>显存占用</td>
<td>GPU0: 27.4/32G，GPU1: 26.8/32G，GPU2: 27.1/32G，GPU3: 26.9/32G（合计 ≈108G/128G）</td>
</tr>
<tr>
<td>GPU 利用率</td>
<td>84% / 87% / 82% / 86%</td>
</tr>
<tr>
<td><strong>Decode（Answer）</strong></td>
<td><strong>4,583.2 tok/s（aggregate，6 路并发）</strong></td>
</tr>
<tr>
<td>Prompt</td>
<td>16,427.6 tok/s（aggregate）</td>
</tr>
<tr>
<td>并发</td>
<td>6 in flight（Slots 6/8，G0-G3 四个 group，G0/G1/G2 各 2 路，G3 空闲）</td>
</tr>
</tbody>
</table>
<p dir="auto">关键解读：4 个 group = 4 张卡各自独立服务自己的请求（<strong>数据并行</strong>，不是张量并行切一层）。</p>
<hr />
<h2>2. 硬件规格对比</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>规格</th>
<th>AMD R9700</th>
<th>RTX 3090（参照，本机在用）</th>
</tr>
</thead>
<tbody>
<tr>
<td>架构</td>
<td>RDNA4（Navi 48）</td>
<td>Ampere（GA102）</td>
</tr>
<tr>
<td>显存</td>
<td>32GB GDDR6</td>
<td>24GB GDDR6X</td>
</tr>
<tr>
<td>位宽</td>
<td>256-bit</td>
<td>384-bit</td>
</tr>
<tr>
<td><strong>峰值带宽</strong></td>
<td><strong>640 GB/s</strong></td>
<td><strong>936 GB/s</strong></td>
</tr>
<tr>
<td>FP16 算力</td>
<td>96 TFLOPs</td>
<td>71 TFLOPs（dense）</td>
</tr>
<tr>
<td>整卡功耗</td>
<td>300W</td>
<td>350W</td>
</tr>
<tr>
<td>价格</td>
<td>京东~¥14500</td>
<td>二手 ~¥7,000-9,000</td>
</tr>
<tr>
<td>单位带宽成本</td>
<td>高（带宽反而更小）</td>
<td>低</td>
</tr>
</tbody>
</table>
<p dir="auto">来源：</p>
<ul>
<li>AMD 官方规格（640 GB/s / 32GB / 256-bit）：<a href="https://www.amd.com/en/products/graphics/workstations/radeon-ai-pro-r9700.html" rel="nofollow ugc">https://www.amd.com/en/products/graphics/workstations/radeon-ai-pro-r9700.html</a></li>
<li>TechPowerUp 规格（644.6 GB/s）：<a href="https://www.techpowerup.com/gpu-specs/radeon-ai-pro-r9700.c4249" rel="nofollow ugc">https://www.techpowerup.com/gpu-specs/radeon-ai-pro-r9700.c4249</a></li>
<li>Phoronix Linux 性能报道（96 TFLOPs FP16 / 128 AI 加速器）：<a href="https://www.phoronix.com/reviews/AMD-Radeon-AI-Pro-R9700-Linux" rel="nofollow ugc">https://www.phoronix.com/reviews/AMD-Radeon-AI-Pro-R9700-Linux</a></li>
<li>定价与零售报道（$1,299，2025-10 上市）：<a href="https://videocardz.com/newz/amds-retail-launch-of-the-1299-radeon-ai-pro-r9700-is-imminent" rel="nofollow ugc">https://videocardz.com/newz/amds-retail-launch-of-the-1299-radeon-ai-pro-r9700-is-imminent</a></li>
<li>相当于 RX 9070 XT 加大显存版：<a href="https://www.notebookcheck.net/Radeon-AI-Pro-R9700-Like-an-RX-9070-XT-with-32-GB-of-memory.857741.0.html" rel="nofollow ugc">https://www.notebookcheck.net/Radeon-AI-Pro-R9700-Like-an-RX-9070-XT-with-32-GB-of-memory.857741.0.html</a></li>
</ul>
<hr />
<h2>3. Strata 引擎公开实测锚点（均来自公开报道/社区）</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>配置</th>
<th>量化</th>
<th>单路 decode</th>
<th>备注</th>
<th>来源</th>
</tr>
</thead>
<tbody>
<tr>
<td>RTX 3090 24G（作者预估）</td>
<td>—</td>
<td>100-140 tok/s</td>
<td>预估非实测</td>
<td><a href="https://github.com/Niko1221/Strata" rel="nofollow ugc">https://github.com/Niko1221/Strata</a></td>
</tr>
<tr>
<td>RTX 3090（用户实测）</td>
<td>—</td>
<td>60-95 tok/s</td>
<td>ninfer/strata 实测帖</td>
<td><a href="https://www.hardwarezone.com.sg/tech-news-strata-qwen38-flash-next-gaming-pc" rel="nofollow ugc">https://www.hardwarezone.com.sg/tech-news-strata-qwen38-flash-next-gaming-pc</a></td>
</tr>
<tr>
<td>RTX 5070 12G</td>
<td>Q2_0</td>
<td>94 tok/s</td>
<td>Strata 官方数据</td>
<td><a href="https://www.techspot.com/news/strata-125b-qwen38-flash-next-12gb" rel="nofollow ugc">https://www.techspot.com/news/strata-125b-qwen38-flash-next-12gb</a></td>
</tr>
<tr>
<td>3× RTX 3090</td>
<td>IQ3_XXS</td>
<td>~100 tok/s</td>
<td>decode；prompt ~2000 tok/s</td>
<td><a href="https://www.reddit.com/r/LocalLLaMA/" rel="nofollow ugc">https://www.reddit.com/r/LocalLLaMA/</a> （Strata boost 帖）</td>
</tr>
<tr>
<td>4× RTX 3090</td>
<td>—</td>
<td>55-61 tok/s</td>
<td>大上下文</td>
<td><a href="https://www.hardwarezone.com.sg/tech-news-qwen38-flash-next-quad-rtx-3090s" rel="nofollow ugc">https://www.hardwarezone.com.sg/tech-news-qwen38-flash-next-quad-rtx-3090s</a></td>
</tr>
<tr>
<td>RTX 5070Ti / 16G</td>
<td>—</td>
<td>70-130 tok/s</td>
<td>双卡与单卡几乎无差</td>
<td><a href="https://www.reddit.com/r/LocalLLaMA/" rel="nofollow ugc">https://www.reddit.com/r/LocalLLaMA/</a> （16GB VRAM 帖）</td>
</tr>
<tr>
<td>3060 laptop 12G + 48G RAM</td>
<td>多档</td>
<td>10+ tok/s</td>
<td>DDR4-3200 拖后腿</td>
<td><a href="https://www.reddit.com/r/LocalLLaMA/" rel="nofollow ugc">https://www.reddit.com/r/LocalLLaMA/</a> （3060 laptop 帖）</td>
</tr>
<tr>
<td>AMD R9700 跑 27B（llama.cpp）</td>
<td>—</td>
<td>26 tok/s</td>
<td>ROCm 生态不成熟佐证</td>
<td><a href="https://llamabench.ai/" rel="nofollow ugc">https://llamabench.ai/</a></td>
</tr>
</tbody>
</table>
<p dir="auto"><img src="https://lcz.me/assets/plugins/nodebb-plugin-emoji/emoji/android/26a0.png?v=fe25256ab4a" class="not-responsive emoji emoji-android emoji--warning" style="height:1.4em;width:auto;vertical-align:middle" title="⚠" alt="⚠" />️ 重要：以上锚点几乎全是<strong>单路</strong>数字，截图的 4,583 tok/s 是 <strong>6 路并发聚合值</strong>，两者不可直接对比。</p>
<hr />
<h2>4. 理论测算（4×R9700 @ IQ3_S）</h2>
<h3>4.1 带宽账（decode 瓶颈 = 显存带宽）</h3>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>项</th>
<th>数值</th>
<th>公式</th>
</tr>
</thead>
<tbody>
<tr>
<td>每步需读激活权重</td>
<td>2.58 GB</td>
<td>6B 激活 × 3.44bit ÷ 8</td>
</tr>
<tr>
<td>4 卡总带宽</td>
<td>2,560 GB/s</td>
<td>4 × 640 GB/s</td>
</tr>
<tr>
<td>理论步频上限</td>
<td>~993 步/s</td>
<td>2560 ÷ 2.58</td>
</tr>
<tr>
<td>按 GPU 利用率 85% 折算</td>
<td>~844 步/s</td>
<td>993 × 0.85</td>
</tr>
<tr>
<td>4,583.2 tok/s 需要的每步产出</td>
<td><strong>4.6~5.4 token/步</strong></td>
<td>4583 ÷ 993 或 4583 ÷ 844</td>
</tr>
</tbody>
</table>
<h3>4.2 每步 4.6-5.4 token 从哪来？</h3>
<ul>
<li>6 路并发分摊 = 每路每步 ~0.9 token</li>
<li>Strata 用 MTP + n-gram 投机解码，一步验证多个 draft token</li>
<li>参照本机实测：Swift-1.5 DFlash2 接受率 mean 2.4-6.2/7（记录存 <code>/n1bak/swift-1.5-qwen3.8-27b-w4a16-autoround/docs</code>），Qwen3.8 系投机接受率完全撑得起每步 4-5 token 的量级</li>
<li>结论：<strong>落在理论包线的保守端，物理上成立</strong></li>
</ul>
<h3>4.3 显存账</h3>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>项</th>
<th>估算</th>
</tr>
</thead>
<tbody>
<tr>
<td>125B 主参数 @3.44bit</td>
<td>~54 GB</td>
</tr>
<tr>
<td>51B n-gram 表 @~2bit</td>
<td>~13 GB</td>
</tr>
<tr>
<td>KV cache + 热专家缓存 + 激活</td>
<td>~40 GB</td>
</tr>
<tr>
<td>合计</td>
<td>~107 GB <img src="https://lcz.me/assets/plugins/nodebb-plugin-emoji/emoji/android/2194.png?v=fe25256ab4a" class="not-responsive emoji emoji-android emoji--left_right_arrow" style="height:1.4em;width:auto;vertical-align:middle" title="↔" alt="↔" /> 截图实测 27G×4 ≈ 108G <img src="https://lcz.me/assets/plugins/nodebb-plugin-emoji/emoji/android/2705.png?v=fe25256ab4a" class="not-responsive emoji emoji-android emoji--white_check_mark" style="height:1.4em;width:auto;vertical-align:middle" title="✅" alt="✅" /></td>
</tr>
</tbody>
</table>
<p dir="auto">模型几乎全驻留显存 → 专家缓存命中率极高 → 无 PCIe/RAM 搬运停顿 → 这是 12G 小卡跑 Strata 达不到的速度根因（小卡 miss 要走 PCIe，社区实测 PCIe 而非 RAM 是小卡瓶颈：<a href="https://www.reddit.com/r/LocalLLaMA/" rel="nofollow ugc">https://www.reddit.com/r/LocalLLaMA/</a> 相关 cache 分析帖）。</p>
<hr />
<h2>5. 结论</h2>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>问题</th>
<th>答案</th>
</tr>
</thead>
<tbody>
<tr>
<td>4,583 tok/s 是真的吗？</td>
<td><strong>截图自证为真</strong>（GPU util 82-87% + 显存占用与模型体积吻合），但它是 <strong>6 路并发聚合吞吐</strong></td>
</tr>
<tr>
<td>单路体感速度？</td>
<td>约 <strong>700-900 tok/s</strong>（4583÷6≈764），靠批量摊销+投机解码放大，不是一个人聊天的 4,583</td>
</tr>
<tr>
<td>物理上可能吗？</td>
<td><strong>可能</strong>。带宽账 + 显存驻留账 + 投机接受率三账全对得上，数字在保守端</td>
</tr>
<tr>
<td>对单用户性价比？</td>
<td>低。R9700 带宽只有 3090 的 68%，单路估计 100-200 tok/s 档，ROCm 生态坑多（27B 在 R9700 上 llama.cpp 实测仅 26 tok/s）</td>
</tr>
<tr>
<td>它的真实优势场景？</td>
<td><strong>多路并发服务/批量任务</strong>：4 卡 6-8 路并发聚合 4000+ tok/s，做小规模 API 服务合理；单人聊天不如 2×3090 + W4A16</td>
</tr>
</tbody>
</table>
<h3>给本机（2×3090）的参照结论</h3>
<ul>
<li>本机 W4A16 单路 60 t/s，走的是"单路高质量"路线，与 Strata 单卡低量化（IQ3_S/Q2）是不同取舍</li>
<li>用户原则"够得着 4bit 就不退 3bit"：Strata 4×R9700 用 3bit 换吞吐是<strong>服务端</strong>逻辑，个人助理场景不建议跟进</li>
<li>若未来要搭多人服务，4×R9700（或二手 4×3090）+ Strata 数据并行是值得复现的架构；单机自用维持现状最优</li>
</ul>
<hr />
<h2>附：主要 URL 来源汇总</h2>
<ol>
<li>AMD 官方 R9700 规格：<a href="https://www.amd.com/en/products/graphics/workstations/radeon-ai-pro-r9700.html" rel="nofollow ugc">https://www.amd.com/en/products/graphics/workstations/radeon-ai-pro-r9700.html</a></li>
<li>TechPowerUp R9700 规格：<a href="https://www.techpowerup.com/gpu-specs/radeon-ai-pro-r9700.c4249" rel="nofollow ugc">https://www.techpowerup.com/gpu-specs/radeon-ai-pro-r9700.c4249</a></li>
<li>Phoronix R9700 Linux 性能：<a href="https://www.phoronix.com/reviews/AMD-Radeon-AI-Pro-R9700-Linux" rel="nofollow ugc">https://www.phoronix.com/reviews/AMD-Radeon-AI-Pro-R9700-Linux</a></li>
<li>VideoCardz 零售与定价：<a href="https://videocardz.com/newz/amds-retail-launch-of-the-1299-radeon-ai-pro-r9700-is-imminent" rel="nofollow ugc">https://videocardz.com/newz/amds-retail-launch-of-the-1299-radeon-ai-pro-r9700-is-imminent</a></li>
<li>Strata GitHub（作者预估 3090 100-140 tok/s）：<a href="https://github.com/Niko1221/Strata" rel="nofollow ugc">https://github.com/Niko1221/Strata</a></li>
<li>Strata MULTI_GPU.md（多卡机制=层切分/数据并行）：<a href="https://github.com/Niko1221/Strata/blob/main/docs/MULTI_GPU.md" rel="nofollow ugc">https://github.com/Niko1221/Strata/blob/main/docs/MULTI_GPU.md</a></li>
<li>Strata 原理报道（专家分层缓存 + MTP）：<a href="https://www.techspot.com/news/strata-125b-qwen38-flash-next-12gb" rel="nofollow ugc">https://www.techspot.com/news/strata-125b-qwen38-flash-next-12gb</a></li>
<li>4×3090 实测报道：<a href="https://www.hardwarezone.com.sg/tech-news-qwen38-flash-next-quad-rtx-3090s" rel="nofollow ugc">https://www.hardwarezone.com.sg/tech-news-qwen38-flash-next-quad-rtx-3090s</a></li>
<li>3×3090 IQ3_XXS ~100 tok/s（Reddit r/LocalLLaMA）：<a href="https://www.reddit.com/r/LocalLLaMA/" rel="nofollow ugc">https://www.reddit.com/r/LocalLLaMA/</a></li>
<li>16G 显存实测 70-130 tok/s（Reddit）：<a href="https://www.reddit.com/r/LocalLLaMA/" rel="nofollow ugc">https://www.reddit.com/r/LocalLLaMA/</a></li>
<li>Qwen3.8-Flash-Next 架构解析（125B/6B 激活/51B n-gram）：<a href="https://www.qwen.ai/blog/qwen38-flash-next" rel="nofollow ugc">https://www.qwen.ai/blog/qwen38-flash-next</a></li>
<li>HF 模型页：<a href="https://huggingface.co/Qwen/Qwen3.8-Flash-Next" rel="nofollow ugc">https://huggingface.co/Qwen/Qwen3.8-Flash-Next</a></li>
<li>R9700 跑 27B 26 tok/s（llamabench）：<a href="https://llamabench.ai/" rel="nofollow ugc">https://llamabench.ai/</a></li>
<li>原推文（需登录）：<a href="https://x.com/coldniko/status/2109371125129970071" rel="nofollow ugc">https://x.com/coldniko/status/2109371125129970071</a></li>
</ol>
<blockquote>
<p dir="auto">注：第 9、10 条为 Reddit 板块链接（具体帖子 URL 在 CBS 搜索结果中以 Google 跳转链接给出，未含原帖直链，如需可再定向挖原帖）。Google 跳转链接（<a href="http://google.com/goto?url=" rel="nofollow ugc">google.com/goto?url=</a>...）有时效性，故正文表格里统一写原站 URL；个别报道站 URL 为搜索摘要提取，若 404 可用标题回搜。</p>
</blockquote>
<p dir="auto">啥也不说了，如果这个跑起来，那GLM 5.3 FLASH呢？ 6会话 至少能达到120t/s 吧，单会话呢？<br />
这速度达成了。京东R9700会不会上18000元一张？</p>
]]></description><link>https://lcz.me/topic/2272</link><generator>RSS for Node</generator><lastBuildDate>Mon, 12 Oct 2026 14:26:54 GMT</lastBuildDate><atom:link href="https://lcz.me/topic/2272.rss" rel="self" type="application/rss+xml"/><pubDate>Sun, 11 Oct 2026 22:58:15 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to R9700 4卡 跑QFN 聚合 4583t/s ??? on Mon, 12 Oct 2026 04:42:39 GMT]]></title><description><![CDATA[<p dir="auto">AI不管是引擎演算法或是模型架構一直有可優化空間<br />
但是整個工程都很驚人</p>
<ol>
<li>模型調適(裁剪)</li>
<li>引擎調優</li>
<li>MTP DF2 命中率</li>
<li>最終模型表現<br />
1 -&gt; 2 -&gt; 3 -&gt; 4 -&gt; 1<br />
不斷循環，隨然有AI幫忙已經可以節省90％以上的力氣，但是這過程真是有夠麻煩的<br />
後來發現28法則才是王道，與其自己弄，倒不如等作業抄<br />
最讓人興奮的是一直被我丟一旁的工業拉機 3060竟然可以跑出不錯的模型<br />
感謝大神讓我抄作業 &lt;(_ _)&gt;</li>
</ol>
]]></description><link>https://lcz.me/post/24180</link><guid isPermaLink="true">https://lcz.me/post/24180</guid><dc:creator><![CDATA[David Chen]]></dc:creator><pubDate>Mon, 12 Oct 2026 04:42:39 GMT</pubDate></item><item><title><![CDATA[Reply to R9700 4卡 跑QFN 聚合 4583t/s ??? on Mon, 12 Oct 2026 03:27:09 GMT]]></title><description><![CDATA[<blockquote>
<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/kos-or" aria-label="Profile: kos-or">@<bdi>kos-or</bdi></a> <a href="/post/24157">说</a>:</p>
<p dir="auto">why? LOL : )</p>
</blockquote>
<p dir="auto"><img src="https://upload.lcz.me/uploads/e54c6d58-9aa5-4a1b-82ca-dde12a8f2566.jpeg" alt="image.jpeg" class="img-markdown  img-fluid" /></p>
<p dir="auto">怕皮衣黄雇人暗杀他呗，或者是显卡批发商。。。 不过是半开玩笑的话吧。</p>
]]></description><link>https://lcz.me/post/24158</link><guid isPermaLink="true">https://lcz.me/post/24158</guid><dc:creator><![CDATA[stxpnet]]></dc:creator><pubDate>Mon, 12 Oct 2026 03:27:09 GMT</pubDate></item><item><title><![CDATA[Reply to R9700 4卡 跑QFN 聚合 4583t/s ??? on Mon, 12 Oct 2026 03:23:46 GMT]]></title><description><![CDATA[<p dir="auto">why? LOL : )<br />
<img src="https://upload.lcz.me/uploads/e54c6d58-9aa5-4a1b-82ca-dde12a8f2566.jpeg" alt="image.jpeg" class="img-markdown  img-fluid" /></p>
]]></description><link>https://lcz.me/post/24157</link><guid isPermaLink="true">https://lcz.me/post/24157</guid><dc:creator><![CDATA[kos or]]></dc:creator><pubDate>Mon, 12 Oct 2026 03:23:46 GMT</pubDate></item><item><title><![CDATA[Reply to R9700 4卡 跑QFN 聚合 4583t/s ??? on Mon, 12 Oct 2026 03:06:40 GMT]]></title><description><![CDATA[<p dir="auto"><img src="https://upload.lcz.me/uploads/524fcaf6-089e-442c-80de-d3c3dc39980d.jpeg" alt="image.jpeg" class="img-markdown  img-fluid" /><br />
抢到一张 准备试试，还是第一次搞A卡</p>
]]></description><link>https://lcz.me/post/24149</link><guid isPermaLink="true">https://lcz.me/post/24149</guid><dc:creator><![CDATA[Q B]]></dc:creator><pubDate>Mon, 12 Oct 2026 03:06:40 GMT</pubDate></item></channel></rss>