Radeon R9 390X and Xbox One X GPU - video card comparison
Radeon R9 390X
Xbox One X GPU
Architecture
GCN (2011−2017)
GCN 2.0 (2013−2017)
GPU code name
Grenada XT
Scorpio
Market segment
Desktop
Desktop
Release date
June 2015
November 2017
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
IGP
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
-
Bridgeless CrossFire
1
-
Boost clock speed
1050 MHz
-
Core clock speed
-
1172 MHz
Floating-point performance
5,914 gflops
6,001 gflops
Manufacturing process technology
28 nm
16 nm
Number of transistors
6,200 million
7,000 million
Pipelines / CUDA cores
2816
2560
Power consumption (TDP)
275 Watt
150 Watt
Texture fill rate
184.8
187.5
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
12 GB
Memory bus width
512 Bit
384 Bit
Memory clock speed
1050 MHz
6800 MHz
Memory bandwidth
384 GB/s
326.4 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
+
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_0)
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.6
N/A
Shader Model
6.3
6.0
Vulkan
+
1.1
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-