Radeon R9 380 and GeForce GTX 660 - video card comparison
Passmark - benchmark score Radeon R9 380 vs GeForce GTX 660
Radeon R9 380
6330
GeForce GTX 660
4119
Radeon R9 380
GeForce GTX 660
Architecture
GCN (2011−2017)
Kepler (2012−2018)
GPU code name
Tonga Pro
GK106
Market segment
Desktop
Desktop
Release date
June 2015
September 2012
Bus support
PCIe 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 6-pin
One 6-pin
SLI options
-
+
Bridgeless CrossFire
1
-
Boost clock speed
970 MHz
1033 MHz
Compute units
28
-
Core clock speed
-
980 MHz
CUDA cores
-
960
Floating-point performance
3,476 gflops
1,981 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
2,540 million
Pipelines / CUDA cores
1792
960
Power consumption (TDP)
190 Watt
140 Watt
Texture fill rate
108.6
78.4 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
192-bit GDDR5
Memory clock speed
970 MHz
6.0 GB/s
Memory bandwidth
182.4 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
+
-
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
4.5
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
-
FRTC
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
+
-