Radeon HD 6970 and GeForce GTX 660 Ti - video card comparison
Passmark - benchmark score Radeon HD 6970 vs GeForce GTX 660 Ti
Radeon HD 6970
2921
GeForce GTX 660 Ti
4547
Radeon HD 6970
GeForce GTX 660 Ti
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Cayman
GK104
Market segment
Desktop
Desktop
Release date
December 2010
August 2012
Bus support
PCIe 2.0 x16
PCI Express 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
Two 6-pin
SLI options
-
+
Boost clock speed
880 MHz
980 MHz
Core clock speed
-
915 MHz
CUDA cores
-
1344
Floating-point performance
2,703.4 gflops
2,459.5 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
3,540 million
Pipelines / CUDA cores
1536
1344
Power consumption (TDP)
550 Watt
150 Watt
Texture fill rate
84.48
102.5 billion/sec
Memory type
DDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
192-bit GDDR5
Memory clock speed
1375 MHz
6.0 GB/s
Memory bandwidth
-
144.2 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
-
4 displays
Eyefinity
1
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
DisplayPort support
-
-
Audio input for HDMI
-
Internal
DirectX
DirectX® 11
12 (11_0)
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.3
Shader Model
5.0
5.1
Vulkan
-
1.1.126
3D Blu-Ray
-
+
3D Gaming
-
+
3D Vision
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-