I received the AMD R9 380 today and will be doing some game testing. This GPU's direct competitor is the GTX 960(coming soon) and we will see which is relevant for current DX11 games and future DX12 and Vulkan games.

Game tests to follow in the coming days.

Using the same games I ran on the R9 290X, I will be aiming to achieve a minimum average framerate of 60FPS at 1920x1080(Full HD quality), showing the quality settings used. The previous test sheet will be updated to reflect this.
Test System
CPU - i7-4790K @4.4GHz
RAM - Kingston Hyper X fury @2400MHz
Motherboard - Asus Maximus Ranger VII
PSU - Corsair AX860i
GPU - R9 380 4Gb @985MHz Core Clock, 1450MHz Memory Clock

Assasins Creed : Syndicate

Graphic Settings
Environmental Quality: High
Textures Quality: High
Shadows Quality: Medium
Ambient Occlusion: SSAO
Anti-aliasing: FXAA

Test Link - https://drive.google.com/open?id=0B5gP1lXvmMe5R25iMW13ZG51R0U

Battlefield 4 @ 1080P

Graphic Quality: Ultra
Texture Quality: Ultra
Texture Filtering: Ultra
Lighting Quality: Ultra
Effects Quality: Ultra
Post process Quality: Ultra
Mesh Quality: Ultra
Terrain Quality: Ultra
Terrain Decoration: Ultra
AnitAliasing: 4x MSAA
AntiAliasing Post: High
Ambient Occlusion: HBAO

Surprisingly, the R9 380 is capable of playing Battlefield 4 on Ultra Settings.

test Link - https://drive.google.com/open?id=0B5gP1lXvmMe5ZmFXNmtFcTM5XzA

Black Ops III

Texture Quality: High
Texture Filtering: High
Mesh Quality: High
Shadow Quality: Medium
Dynamic Shaodws: ON
Subsurface: ON
ORT: Medium
Volumetric Lighting: medium
AntiAliasiang: SMAA 1X
Ambient Occlusion: Medium
Motion Blur: Always ON

Test Sheet - https://drive.google.com/open?id=0B5gP1lXvmMe5R0pReWs4VHBKdFU

Hitman Absolution

Quality Level: Custom
Shadow Quality: Medium
Texture Quality: High
Texture Filter: Anisotropic 16X
SSAO: Normal
Global Illumination: ON
Tessellation: ON
Reflections: Medium
FXAA: ON
Detail Level: Medium
Field Depth: Medium
MSAA: 4x

Test Link - https://drive.google.com/open?id=0B5gP1lXvmMe5ME9OWTg4ek5yRkk

Tomb Raider 2013

Quality: Ultimate
Texture: Ultra
Texture filter: Anisotropic 16x
Hair Quality: TressFX
Anti-aliasing: FXAA
Shadows: Normal
Shadow Res: High
Detail Level:[b] Ultra
[b]Reflections: High
Depth of Field: Ultra
SSAO: Ultra
Post Processing: ON
Tessellation: ON
High Precision: ON

Test Sheet: https://drive.google.com/open?id=0B5gP1lXvmMe5T3QzV1lJNTY4R3c

Mortal Kombat X

Resolution: 1920x1080
Anti-Aliasing: FXAA
Texture Filtering: 16x Anisotropic
Bloom: ON
Field Depth: ON
Motion Blur: ON
Particles: ON
Particle Density: 100%
Shadow: Very High
Texture Quality: High

Comparison Sheet - https://drive.google.com/open?id=0B5gP1lXvmMe5MGdpQlNFV2l0TVk

Need For Speed 2016

Screen Res: 1920x1080
Texture: High
Motion Blur: ON
Shadow: Medium
Ambient: SSAO
Effects Detail: Medium
Geometry: Medium
Anti-Aliasing: TAA

Comparison Sheet - https://drive.google.com/open?id=0B5gP1lXvmMe5Y0VQU2JVSTFUbTA

Need For Speed Most Wanted

Resolution: 1920x1080
High res Textures: ON
Motion Blur: High
Shadow Level: High
Headlight Shadows: ON
Ambient Occlusion: Medium
Reflection detail: Medium
VFX detail: High
Geometry detail: High
Light Scattering: ON
Super Sampling: 2x

Comparison link - https://drive.google.com/open?id=0B5gP1lXvmMe5Z3FCREZLNkljbm8

Ryse: Son Of Rome

Resolution: 1920x1080
Supersampling: OFF
Texture Res: Very High
Shading Quality: High
Object Detail: High
Shadows: High
Particle Density: High
Animation Quality: High
Motion Blur: Enabled
Texture Filtering: 16x

Comparison Link - https://drive.google.com/open?id=0B5gP1lXvmMe5eGJTRXpfV0ExcUE

Witcher 3

Graphic preset: Medium
Water Quality - Low
Grass Density - Low
Texture Quality - low
Foliage - low

Post Processing: Medium

Minimum framerate of 60FPS observed during fight scenes. This is quite a demanding game.

Comparison link - https://drive.google.com/open?id=0B5gP1lXvmMe5c2dhaTExTS1SWEE