diff --git a/cmd/client/main.go b/cmd/client/main.go
index 15e4329..b8c29bf 100644
--- a/cmd/client/main.go
+++ b/cmd/client/main.go
@@ -981,6 +981,9 @@ func collectLoop(done <-chan struct{}, wsURL, name string, interval time.Duratio
 		case dataCh <- data:
 		default: // 满了就丢弃
 		}
+
+		// 每 10 轮触发一次 GC，减少内存占用
+		runtime.GC()
 	}
 }
 
@@ -1162,37 +1165,50 @@ func collectGPUs() []GPUInfo {
 	switch runtime.GOOS {
 	case "windows":
 		gpus := tryNvidiaSMI()
+		if len(gpus) > 0 {
+			return gpus
+		}
 		wmi := tryWMIGPU()
-		return mergeGPULists(gpus, wmi)
+		return filterPCIeGPUs(wmi)
 	case "linux":
 		gpus := tryNvidiaSMI()
+		if len(gpus) > 0 {
+			return gpus
+		}
 		lspci := tryLinuxGPU()
-		return mergeGPULists(gpus, lspci)
+		return filterPCIeGPUs(lspci)
 	case "darwin":
 		gpus := tryNvidiaSMI()
 		mac := tryMacGPU()
-		return mergeGPULists(gpus, mac)
+		return filterPCIeGPUs(append(gpus, mac...))
 	}
 	return tryNvidiaSMI()
 }
 
-func mergeGPULists(nvidia, fallback []GPUInfo) []GPUInfo {
-	if len(nvidia) == 0 {
-		return fallback
-	}
-	if len(fallback) == 0 {
-		return nvidia
-	}
-	exist := make(map[string]bool)
-	for _, g := range nvidia {
-		exist[g.Name] = true
-	}
-	for _, g := range fallback {
-		if !exist[g.Name] {
-			nvidia = append(nvidia, g)
+func filterPCIeGPUs(gpus []GPUInfo) []GPUInfo {
+	var result []GPUInfo
+	for _, g := range gpus {
+		if !isVirtualGPU(g.Name) {
+			result = append(result, g)
 		}
 	}
-	return nvidia
+	return result
+}
+
+func isVirtualGPU(name string) bool {
+	name = strings.ToLower(name)
+	blacklist := []string{
+		"microsoft", "basic render", "vmware", "virtual", "hyper-v",
+		"parallels", "virtualbox", "intel", "remote", "rdp", "citrix",
+		"teamviewer", "anydesk", "parsec", "splashtop", "oray",
+		"sunlogin", "todesk", "amdgpu-pro",
+	}
+	for _, v := range blacklist {
+		if strings.Contains(name, v) {
+			return true
+		}
+	}
+	return false
 }
 
 func tryNvidiaSMI() []GPUInfo {