Radeon R9 390 and Iris Xe Graphics G4 - video card comparison
Radeon R9 390
Iris Xe Graphics G4
Architecture
GCN 2.0 (2013−2017)
Generation 12.0 (2020)
GPU code name
Grenada
Tiger Lake GT1
Market segment
Desktop
Laptop
Release date
June 2015
September 2020
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
-
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
1100 MHz
Floating-point performance
5,120 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
6,200 million
-
Pipelines / CUDA cores
2560
384
Power consumption (TDP)
275 Watt
15 Watt
Texture fill rate
160.0
52.80
Memory type
GDDR5
System Shared
Maximum RAM amount
0 MB
System Shared
Memory bus width
512 Bit
System Shared
Memory clock speed
1000 MHz
System Shared
Memory bandwidth
384 GB/s
-
High bandwidth memory (HBM)
-
-
Shared memory
-
+
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_1)
Mantle
+
-
OpenCL
2.0
2.1
OpenGL
4.6
4.6
Shader Model
6.3
6.4
Vulkan
+
1.1
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
Quick Sync
-
+
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-