diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a7cc38..704cfb6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -83,7 +83,7 @@ For major (breaking) changes - **version 4, 3 and 2** - see end of page.
 
 | Version | Date       | Comment                                                                                             |
 | ------- | ---------- | --------------------------------------------------------------------------------------------------- |
-| 5.20.1  | 2023-08-28 | `graphics()` improved vendor, model parsing (linux) `memLayout()` DDR5 detection (windows)          |
+| 5.21.0  | 2023-08-28 | `graphics()` added subvendor (linux) `memLayout()` DDR5 detection (windows)                         |
 | 5.20.0  | 2023-08-25 | `mem()` added writenack and dirty (linux)                                                           |
 | 5.19.1  | 2023-08-23 | `wifiNetworks()` improved SSID parsing (macOS)                                                      |
 | 5.19.0  | 2023-08-22 | `currentLoad()` added steal and guest time (linux)                                                  |
diff --git a/README.md b/README.md
index 42739ee..c478fbf 100644
--- a/README.md
+++ b/README.md
@@ -328,7 +328,8 @@ Full function reference with examples can be found at [https://systeminformation
 | --------------- | ------------------------- | ----- | --- | --- | --- | --- | ------------------------------------------- |
 | si.graphics(cb) | {...}                     | X     |     | X   | X   |     | arrays of graphics controllers and displays |
 |                 | controllers[]             | X     |     | X   | X   |     | graphics controllers array                  |
-|                 | ...[0].vendor             | X     |     | X   | X   |     | e.g. ATI                                    |
+|                 | ...[0].vendor             | X     |     | X   | X   |     | e.g. NVIDIA                                 |
+|                 | ...[0].subvendor          | X     |     |     |     |     | e.g. Gigabyte                               |
 |                 | ...[0].vendorId           |       |     | X   |     |     | vendor ID                                   |
 |                 | ...[0].model              | X     |     | X   | X   |     | graphics controller model                   |
 |                 | ...[0].deviceId           |       |     | X   |     |     | device ID                                   |
diff --git a/docs/graphics.html b/docs/graphics.html
index 7307d57..528ca52 100644
--- a/docs/graphics.html
+++ b/docs/graphics.html
@@ -95,7 +95,17 @@
                       <td>X</td>
                       <td>X</td>
                       <td></td>
-                      <td>e.g. ATI</td>
+                      <td>Chip manufacturer e.g. NVIDIA</td>
+                    </tr>
+                    <tr>
+                      <td></td>
+                      <td>...[0].subvendor</td>
+                      <td>X</td>
+                      <td></td>
+                      <td></td>
+                      <td></td>
+                      <td></td>
+                      <td>Subvendor e.g. Gigabyte</td>
                     </tr>
                     <tr>
                       <td></td>
@@ -649,4 +659,4 @@ si.graphics().then(data => console.log(data));</code></pre class="example">
   </script>
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/docs/history.html b/docs/history.html
index 8995c9a..1d8be53 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -58,9 +58,9 @@
                   </thead>
                   <tbody>
                     <tr>
-                      <th scope="row">5.20.1</th>
+                      <th scope="row">5.21.0</th>
                       <td>2023-08-28</td>
-                      <td><span class="code">graphics()</span> improved parsing (linux) <span class="code">mamLayout()</span> DDR5 detection (windows)</td>
+                      <td><span class="code">graphics()</span> added subvendor (linux) <span class="code">mamLayout()</span> DDR5 detection (windows)</td>
                     </tr>
                     <tr>
                       <th scope="row">5.20.0</th>
diff --git a/docs/index.html b/docs/index.html
index 681d6de..e1227c1 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -170,7 +170,7 @@
       <img class="logo" src="assets/logo.png" alt="logo">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span>&nbsp;</div>
-      <div class="version">New Version: <span id="version">5.20.1</span></div>
+      <div class="version">New Version: <span id="version">5.21.0</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
@@ -212,7 +212,7 @@
           <div class="title">Downloads last month</div>
         </div>
         <div class="col-xl-4 col-lg-4 col-md-4 col-12">
-          <div class="numbers">642</div>
+          <div class="numbers">645</div>
           <div class="title">Dependents</div>
         </div>
       </div>
diff --git a/lib/graphics.js b/lib/graphics.js
index 2664d8f..ee0d61a 100644
--- a/lib/graphics.js
+++ b/lib/graphics.js
@@ -204,6 +204,7 @@ function graphics(callback) {
     let controllers = [];
     let currentController = {
       vendor: '',
+      subvendor: '',
       model: '',
       bus: '',
       busAddress: '',
@@ -292,9 +293,9 @@ function graphics(callback) {
                 }
               }
               if (currentController.model && subsystem.indexOf(currentController.model) !== -1) {
-                const vendor2 = subsystem.split(currentController.model)[0].trim();
-                if (vendor2) {
-                  currentController.vendor += ', ' + vendor2;
+                const subvendor = subsystem.split(currentController.model)[0].trim();
+                if (subvendor) {
+                  currentController.subvendor = subvendor;
                 }
               }
             }
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 408af37..3234219 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -306,6 +306,7 @@ export namespace Systeminformation {
 
   interface GraphicsControllerData {
     vendor: string;
+    subvendor?: string;
     vendorId?: string;
     model: string;
     deviceId?: string;