低功耗显卡天梯榜首页

给 NAS、HTPC、迷你主机、软路由加张显卡,最头疼的就是功耗墙:机箱给不了 200W,满血显卡再强也塞不进去。这期把 TDP≤75W 的显卡全部拉出来,一共 410 款按 PassMark G3D 跑分排成天梯(快照 2026-08-19),无需外接供电的基本都在这个池子里。

口径:PassMark G3D 跑分(3D/游戏性能参考),条长=分数、以榜首为满条。注意 G3D 不代表 AI/推理性能,跑大模型看这篇显卡跑大模型速查

前三

#显卡G3D
1Radeon RX 7600S(8GB)15,597
2Radeon PRO W7500(8GB)13,196
3Radeon RX 7400(8GB)11,897

AMD RDNA3 移动卡包揽前三——75W 墙内性能王是 RX 7600S;往下的实用甜点是 RTX 3050 6GB(10,738)这类无外供卡。

完整天梯(410 款 · TDP≤75W)

低功耗显卡天梯 1/9
1/9
低功耗显卡天梯 2/9
2/9
低功耗显卡天梯 3/9
3/9
低功耗显卡天梯 4/9
4/9
低功耗显卡天梯 5/9
5/9
低功耗显卡天梯 6/9
6/9
低功耗显卡天梯 7/9
7/9
低功耗显卡天梯 8/9
8/9
低功耗显卡天梯 9/9
9/9

按场景怎么选

  • NAS / 软路由核显不足补一张:GTX 1650(4GB,75W 无外供)或 Intel A380(75W,编码器强),二手几百块
  • HTPC / 客厅机:RTX 3050 6GB 无外供版本,视频解码全,性能够 1080p 中画质
  • 迷你主机外接:RX 7600S / 7400 这类移动卡需要笔记本这边有 OCuLink/雷电独显直连,注意兼容性
  • 长期开机的 AI 小盒子:这个功耗段跑不动大模型,别硬塞;正经跑本地模型看 24G 卡速查AI 算力工具

一个提醒:榜单里笔记本卡(S/Max-Q 后缀)买不到单独卡,列出来主要给"迷你主机里的核显/独显大概什么水平"做参照。桌面能买到的无外供卡,认准 75W 桌面版(1650、3050 6GB、A380、PRO W7500 等)。

免责声明:数据来自 PassMark 公开榜单(2026-08-19 快照),G3D 为 3D/游戏性能参考,不代表 AI 推理性能,仅供参考。

Adding a GPU to a NAS, HTPC, mini PC or router hits the same wall: power. So we pulled every card with TDP ≤ 75W — 410 of them — and ranked by PassMark G3D score (snapshot 2026-08-19). Most cards without external power connectors live in this pool.

Method: PassMark G3D (gaming/3D reference). Note G3D ≠ AI inference performance — for local LLMs see the GPU cheat sheet.

Podium

#GPUG3D
1Radeon RX 7600S (8GB)15,597
2Radeon PRO W7500 (8GB)13,196
3Radeon RX 7400 (8GB)11,897

AMD RDNA3 mobile parts sweep the podium — RX 7600S is the 75W performance king. The practical desktop pick: the connector-free RTX 3050 6GB (10,738).

Full ladder (410 cards, TDP≤75W)

Low-power GPU ladder 1/9
1/9
Low-power GPU ladder 2/9
2/9
Low-power GPU ladder 3/9
3/9
Low-power GPU ladder 4/9
4/9
Low-power GPU ladder 5/9
5/9
Low-power GPU ladder 6/9
6/9
Low-power GPU ladder 7/9
7/9
Low-power GPU ladder 8/9
8/9
Low-power GPU ladder 9/9
9/9

Picks by scenario

  • NAS / router transcode boost: GTX 1650 4GB (75W, no connector) or Intel A380 (75W, great media engine) — a few hundred yuan used
  • HTPC: RTX 3050 6GB connector-free — full decode stack, comfortable 1080p gaming
  • Mini PC eGPU: RX 7600S/7400 are mobile chips; needs OCuLink/Thunderbolt — check compatibility first
  • Always-on AI box: this power class can't run serious local LLMs — see the 24 GB picks in the cheat sheet or the AI lookup tool

Note: mobile cards (S/Max-Q suffix) aren't sold separately — they're listed as reference for what's inside mini PCs. Buyable desktop connector-free cards: GTX 1650, RTX 3050 6GB, Arc A380, PRO W7500.

Disclaimer: data from public PassMark rankings (2026-08-19 snapshot); G3D measures 3D/gaming, not AI inference.
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