diff --git a/lib/graphics.js b/lib/graphics.js
index cb9e322..b1ee766 100644
--- a/lib/graphics.js
+++ b/lib/graphics.js
@@ -488,8 +488,6 @@ function graphics(callback) {
     return controller;
   }
 
-
-
   function parseLinesLinuxEdid(edid) {
     // parsen EDID
     // --> model
@@ -775,6 +773,7 @@ function graphics(callback) {
         try {
           const workload = [];
           workload.push(util.wmic('path win32_VideoController get /value'));
+          workload.push(util.powerShell('gp "HKLM:\\SYSTEM\\ControlSet001\\Control\\Class\\{4d36e968-e325-11ce-bfc1-08002be10318}\\*" -ErrorAction SilentlyContinue | where MatchingDeviceId $null -NE | select MatchingDeviceId,HardwareInformation.qwMemorySize | fl'));
           workload.push(util.wmic('path win32_desktopmonitor get /value'));
           workload.push(util.powerShell('Get-CimInstance -Namespace root\\wmi -ClassName WmiMonitorBasicDisplayParams | fl'));
           workload.push(util.powerShell('Add-Type -AssemblyName System.Windows.Forms; [System.Windows.Forms.Screen]::AllScreens'));
@@ -786,10 +785,10 @@ function graphics(callback) {
           Promise.all(
             workload
           ).then(data => {
-            // controller
+            // controller + vram
             let csections = data[0].split(/\n\s*\n/);
-            result.controllers = parseLinesWindowsControllers(csections);
-            // needs to be rewritten ... using no spread operators
+            let vsections = data[1].split(/\n\s*\n/);
+            result.controllers = parseLinesWindowsControllers(csections, vsections);
             result.controllers = result.controllers.map((controller) => { // match by subDeviceId
               if (controller.vendor.toLowerCase() === 'nvidia') {
                 return mergeControllerNvidia(controller, nvidiaData.find(device => {
@@ -812,26 +811,27 @@ function graphics(callback) {
                 return controller;
               }
             });
+
             // displays
-            let dsections = data[1].split(/\n\s*\n/);
+            let dsections = data[2].split(/\n\s*\n/);
             // result.displays = parseLinesWindowsDisplays(dsections);
             dsections.shift();
             dsections.pop();
 
             // monitor (powershell)
-            let msections = data[2].split('Active ');
+            let msections = data[3].split('Active ');
             msections.shift();
 
             // forms.screens (powershell)
-            let ssections = data[3].split('BitsPerPixel ');
+            let ssections = data[4].split('BitsPerPixel ');
             ssections.shift();
 
             // connection params (powershell) - video type
-            let tsections = data[4].split(/\n\s*\n/);
+            let tsections = data[5].split(/\n\s*\n/);
             tsections.shift();
 
             // monitor ID (powershell) - model / vendor
-            const res = data[5].split(/\r\n/);
+            const res = data[6].split(/\r\n/);
             let isections = [];
             res.forEach(element => {
               const parts = element.split('|');
@@ -887,26 +887,85 @@ function graphics(callback) {
     });
   });
 
-  function parseLinesWindowsControllers(sections) {
+  function parseLinesWindowsControllers(sections, vections) {
+    const memorySizes = {};
+    for (const i in vections) {
+      if ({}.hasOwnProperty.call(vections, i)) {
+        if (vections[i].trim() !== '') {
+          const lines = vections[i].trim().split(os.EOL);
+          const matchingDeviceId = util.getValue(lines, 'MatchingDeviceId').match(/PCI\\(VEN_[0-9A-F]{4})&(DEV_[0-9A-F]{4})(?:&(SUBSYS_[0-9A-F]{8}))?(?:&(REV_[0-9A-F]{2}))?/i);
+          if (matchingDeviceId) {
+            const quadWordmemorySize = parseInt(util.getValue(lines, 'HardwareInformation.qwMemorySize'));
+            if (!isNaN(quadWordmemorySize)) {
+              let deviceId = matchingDeviceId[1].toUpperCase() + '&' + matchingDeviceId[2].toUpperCase();
+              if (matchingDeviceId[3]) {
+                deviceId += '&' + matchingDeviceId[3].toUpperCase();
+              }
+              if (matchingDeviceId[4]) {
+                deviceId += '&' + matchingDeviceId[4].toUpperCase();
+              }
+              memorySizes[deviceId] = quadWordmemorySize;
+            }
+          }
+        }
+      }
+    }
+
     let controllers = [];
     for (let i in sections) {
       if ({}.hasOwnProperty.call(sections, i)) {
         if (sections[i].trim() !== '') {
-
           let lines = sections[i].trim().split('\r\n');
-          let pnpDeviceId = util.getValue(lines, 'PNPDeviceID', '=').match(/SUBSYS_[a-fA-F\d]{8}/);
+          let pnpDeviceId = util.getValue(lines, 'PNPDeviceID', '=').match(/PCI\\(VEN_[0-9A-F]{4})&(DEV_[0-9A-F]{4})(?:&(SUBSYS_[0-9A-F]{8}))?(?:&(REV_[0-9A-F]{2}))?/i);
           let subDeviceId = null;
+          let memorySize = null;
           if (pnpDeviceId) {
-            subDeviceId = pnpDeviceId[0];
+            subDeviceId = pnpDeviceId[3];
             if (subDeviceId) {
               subDeviceId = subDeviceId.split('_')[1];
             }
+
+            // Match PCI device identifier (there's an order of increasing generality):
+            // https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
+
+            // PCI\VEN_v(4)&DEV_d(4)&SUBSYS_s(4)n(4)&REV_r(2)
+            if (memorySize == null && pnpDeviceId[3] && pnpDeviceId[4]) {
+              const deviceId = pnpDeviceId[1].toUpperCase() + '&' + pnpDeviceId[2].toUpperCase() + '&' + pnpDeviceId[3].toUpperCase() + '&' + pnpDeviceId[4].toUpperCase();
+              if ({}.hasOwnProperty.call(memorySizes, deviceId)) {
+                memorySize = memorySizes[deviceId]
+              }
+            }
+
+            // PCI\VEN_v(4)&DEV_d(4)&SUBSYS_s(4)n(4)
+            if (memorySize == null && pnpDeviceId[3]) {
+              const deviceId = pnpDeviceId[1].toUpperCase() + '&' + pnpDeviceId[2].toUpperCase() + '&' + pnpDeviceId[3].toUpperCase();
+              if ({}.hasOwnProperty.call(memorySizes, deviceId)) {
+                memorySize = memorySizes[deviceId]
+              }
+            }
+
+            // PCI\VEN_v(4)&DEV_d(4)&REV_r(2)
+            if (memorySize == null && pnpDeviceId[4]) {
+              const deviceId = pnpDeviceId[1].toUpperCase() + '&' + pnpDeviceId[2].toUpperCase() + '&' + pnpDeviceId[4].toUpperCase();
+              if ({}.hasOwnProperty.call(memorySizes, deviceId)) {
+                memorySize = memorySizes[deviceId]
+              }
+            }
+
+            // PCI\VEN_v(4)&DEV_d(4)
+            if (memorySize == null) {
+              const deviceId = pnpDeviceId[1].toUpperCase() + '&' + pnpDeviceId[2].toUpperCase();
+              if ({}.hasOwnProperty.call(memorySizes, deviceId)) {
+                memorySize = memorySizes[deviceId]
+              }
+            }
           }
+
           controllers.push({
             vendor: util.getValue(lines, 'AdapterCompatibility', '='),
             model: util.getValue(lines, 'name', '='),
             bus: util.getValue(lines, 'PNPDeviceID', '=').startsWith('PCI') ? 'PCI' : '',
-            vram: util.toInt(util.getValue(lines, 'AdapterRAM', '=')) / 1024 / 1024,
+            vram: (memorySize == null ? util.toInt(util.getValue(lines, 'AdapterRAM', '=')) : memorySize) / 1024 / 1024,
             vramDynamic: (util.getValue(lines, 'VideoMemoryType', '=') === '2'),
             subDeviceId
           });