Radeon R9 390 and Radeon HD 7660G - video card comparison
Passmark - benchmark score Radeon R9 390 vs Radeon HD 7660G
Radeon R9 390
9182
Radeon HD 7660G
489
Radeon R9 390
Radeon HD 7660G
Architecture
GCN 2.0 (2013−2017)
Terascale 3 (2010−2013)
GPU code name
Grenada
Trinity
Market segment
Desktop
Laptop
Release date
June 2015
May 2012
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
1000 MHz
686 MHz
Core clock speed
-
497 MHz
Floating-point performance
5,120 gflops
-
Manufacturing process technology
28 nm
32 nm
Number of transistors
6,200 million
1.3 Million
Pipelines / CUDA cores
2560
384
Power consumption (TDP)
275 Watt
35 Watt
Texture fill rate
160.0
16.46
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
11.2 (11_0)
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.6
4.4
Shader Model
6.3
5.0
Vulkan
+
N/A
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-