Radeon R9 390 and UHD Graphics 770 - video card comparison
Passmark - benchmark score Radeon R9 390 vs UHD Graphics 770
Radeon R9 390
9182
UHD Graphics 770
2844
Radeon R9 390
UHD Graphics 770
Architecture
GCN 2.0 (2013−2017)
Alder Lake
GPU code name
Grenada
Alder Lake xG
Market segment
Desktop
Desktop
Release date
June 2015
January 2022
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
Ring Bus
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
-
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
300 MHz
Floating-point performance
5,120 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
6,200 million
-
Pipelines / CUDA cores
2560
32
Power consumption (TDP)
275 Watt
15 Watt
Texture fill rate
160.0
26.40
Memory type
GDDR5
System Shared
Maximum RAM amount
0 MB
System Shared
Memory bus width
512 Bit
System Shared
Memory clock speed
1000 MHz
1550 MHz
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
3.0
OpenGL
4.6
4.6
Shader Model
6.3
6.4
Vulkan
+
1.3
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-