Radeon R9 390 and GeForce GTX 660 Ti - video card comparison
Passmark - benchmark score Radeon R9 390 vs GeForce GTX 660 Ti
Radeon R9 390
9182
GeForce GTX 660 Ti
4547
Radeon R9 390
GeForce GTX 660 Ti
Architecture
GCN 2.0 (2013−2017)
Kepler (2012−2018)
GPU code name
Grenada
GK104
Market segment
Desktop
Desktop
Release date
June 2015
August 2012
Bus support
PCIe 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
Two 6-pin
SLI options
-
+
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
980 MHz
Core clock speed
-
915 MHz
CUDA cores
-
1344
Floating-point performance
5,120 gflops
2,459.5 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
3,540 million
Pipelines / CUDA cores
2560
1344
Power consumption (TDP)
275 Watt
150 Watt
Texture fill rate
160.0
102.5 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
2 GB
Memory bus width
512 Bit
192-bit GDDR5
Memory clock speed
1000 MHz
6.0 GB/s
Memory bandwidth
384 GB/s
144.2 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
-
4 displays
Eyefinity
1
-
Number of Eyefinity displays
6
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
DisplayPort support
+
-
Audio input for HDMI
-
Internal
DirectX
DirectX® 12
12 (11_0)
CUDA
-
+
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.6
4.3
Shader Model
6.3
5.1
Vulkan
+
1.1.126
3D Blu-Ray
-
+
3D Gaming
-
+
3D Vision
-
+
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-