diff --git a/wgpu-hal/src/gles/adapter.rs b/wgpu-hal/src/gles/adapter.rs
index ae76bce77a..61dcd56b91 100644
--- a/wgpu-hal/src/gles/adapter.rs
+++ b/wgpu-hal/src/gles/adapter.rs
@@ -494,6 +494,7 @@ impl super::Adapter {
                     private_caps,
                     workarounds,
                     shading_language_version,
+                    max_texture_size,
                 }),
             },
             info: Self::make_info(vendor, renderer),
@@ -718,8 +719,8 @@ impl crate::Adapter<super::Api> for super::Adapter {
                     height: 4,
                     depth_or_array_layers: 1,
                 }..=wgt::Extent3d {
-                    width: 4096,
-                    height: 4096,
+                    width: self.shared.max_texture_size,
+                    height: self.shared.max_texture_size,
                     depth_or_array_layers: 1,
                 },
                 usage: crate::TextureUses::COLOR_TARGET,
diff --git a/wgpu-hal/src/gles/mod.rs b/wgpu-hal/src/gles/mod.rs
index d62799814f..8c7dde0da2 100644
--- a/wgpu-hal/src/gles/mod.rs
+++ b/wgpu-hal/src/gles/mod.rs
@@ -182,6 +182,7 @@ struct AdapterShared {
     private_caps: PrivateCapabilities,
     workarounds: Workarounds,
     shading_language_version: naga::back::glsl::Version,
+    max_texture_size: u32,
 }
 
 pub struct Adapter {
diff --git a/wgpu-hal/src/metal/adapter.rs b/wgpu-hal/src/metal/adapter.rs
index 83c8809ddd..a51686188f 100644
--- a/wgpu-hal/src/metal/adapter.rs
+++ b/wgpu-hal/src/metal/adapter.rs
@@ -380,8 +380,8 @@ impl crate::Adapter<super::Api> for super::Adapter {
                 height: 4,
                 depth_or_array_layers: 1,
             }..=wgt::Extent3d {
-                width: 4096,
-                height: 4096,
+                width: pc.max_texture_size as u32,
+                height: pc.max_texture_size as u32,
                 depth_or_array_layers: 1,
             },
             usage: crate::TextureUses::COLOR_TARGET | crate::TextureUses::COPY_DST, //TODO: expose more