[Docs] Add RTX 5090 DeepSeek-V4 recipe (#33157)

docs_new/src/snippets/configs/deepseek-ai/deepseek-v4.jsx

@@ -8,16 +8,18 @@ export const config = {
 
   supportedHardware: [
     "h100", "h200", "b200", "b300", "gb200", "gb300",
-    "rtx6000",
+    "rtx6000", "rtx5090",
     // AMD ROCm — MI300X (Flash FP8) + MI355X (Flash/Pro, FP4/FP8).
     "mi300x", "mi355x",
   ],
 
   // Model-specific GPUs the shared HARDWARE_CATALOG doesn't carry — the engine
   // merges these in, so a model-specific GPU is config data, not an engine edit.
-  // RTX PRO 6000 (SM120 / Blackwell Desktop) is a workstation card, not datacenter.
+  // RTX PRO 6000 and RTX 5090 (SM120 / Blackwell Desktop) are workstation and
+  // consumer cards, not datacenter GPUs.
   hardware: [
     { id: "rtx6000", label: "RTX PRO 6000", vram: "96GB", vendor: "blackwell" },
+    { id: "rtx5090", label: "RTX 5090", vram: "32GB", vendor: "blackwell" },
   ],
 
   variants: [
@@ -1784,6 +1786,25 @@ sgl-eval run aime25 \\
       ],
     },
 
+    // ====================================================================
+    // RTX 5090 (SM120 / Blackwell Desktop) — Flash Official + low-latency
+    // ====================================================================
+    {
+      match: { hw: "rtx5090", variant: "flash-official", quant: "fp4", strategy: "low-latency", nodes: "single" },
+      verified: false,
+      env: [],
+      flags: [
+        "--trust-remote-code",
+        "--model-path {{MODEL_NAME}}",
+        "--tp 8",
+        "--moe-runner-backend flashinfer_mxfp4",
+        "--mem-fraction-static 0.90",
+        "--cuda-graph-max-bs-decode 32",
+        "--host {{HOST_IP}}",
+        "--port {{PORT}}",
+      ],
+    },
+
     // ====================================================================
     // AMD ROCm (MI300X / MI355X)
     // --------------------------------------------------------------------