diff --git a/packages/core/src/textures/BaseTexture.js b/packages/core/src/textures/BaseTexture.js
index 5c2731a..7e859f8 100644
--- a/packages/core/src/textures/BaseTexture.js
+++ b/packages/core/src/textures/BaseTexture.js
@@ -303,7 +303,7 @@
      */
     get realWidth()
     {
-        return Math.ceil(this.width * this.resolution);
+        return Math.ceil((this.width * this.resolution) - 1e-4);
     }
 
     /**
@@ -314,7 +314,7 @@
      */
     get realHeight()
     {
-        return Math.ceil(this.height * this.resolution);
+        return Math.ceil((this.height * this.resolution) - 1e-4);
     }
 
     /**

diff --git a/packages/core/src/textures/BaseTexture.js b/packages/core/src/textures/BaseTexture.js
index 5c2731a..7e859f8 100644
--- a/packages/core/src/textures/BaseTexture.js
+++ b/packages/core/src/textures/BaseTexture.js
@@ -303,7 +303,7 @@
      */
     get realWidth()
     {
-        return Math.ceil(this.width * this.resolution);
+        return Math.ceil((this.width * this.resolution) - 1e-4);
     }
 
     /**
@@ -314,7 +314,7 @@
      */
     get realHeight()
     {
-        return Math.ceil(this.height * this.resolution);
+        return Math.ceil((this.height * this.resolution) - 1e-4);
     }
 
     /**
diff --git a/packages/core/test/BaseTexture.js b/packages/core/test/BaseTexture.js
index 51879dd..137595c 100644
--- a/packages/core/test/BaseTexture.js
+++ b/packages/core/test/BaseTexture.js
@@ -1,5 +1,5 @@
 const { BaseTextureCache, TextureCache } = require('@pixi/utils');
-const { BaseTexture, Texture, resources } = require('../');
+const { BaseTexture, Texture, RenderTexture, resources } = require('../');
 const { ImageResource } = resources;
 
 const URL = 'foo.png';
@@ -174,4 +174,13 @@
         expect(resource.destroyed).to.be.true;
         expect(baseTexture.destroyed).to.be.true;
     });
+
+    it('should show correct width/height after setResolution', function ()
+    {
+        const texture = RenderTexture.create({ width: 15, height: 15 });
+
+        texture.setResolution(0.9);
+        expect(texture.baseTexture.realWidth).to.equal(15);
+        expect(texture.baseTexture.realHeight).to.equal(15);
+    });
 });