GeForce GTX 660 Ti and Radeon HD 6450 - video card comparison
Passmark - benchmark score GeForce GTX 660 Ti vs Radeon HD 6450
GeForce GTX 660 Ti
4547
Radeon HD 6450
203
GeForce GTX 660 Ti
Radeon HD 6450
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK104
Caicos
Market segment
Desktop
Desktop
Release date
August 2012
April 2011
Bus support
PCI Express 3.0
PCIe 2.0 x8
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
980 MHz
750 MHz
Core clock speed
915 MHz
-
CUDA cores
1344
-
Floating-point performance
2,459.5 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
370 million
Pipelines / CUDA cores
1344
160
Power consumption (TDP)
150 Watt
30 Watt
Texture fill rate
102.5 billion/sec
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
192-bit GDDR5
64 Bit
Memory clock speed
6.0 GB/s
800 MHz
Memory bandwidth
144.2 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x DVI, 1x HDMI, 1x VGA
Multi monitor support
4 displays
-
Eyefinity
-
1
Number of Eyefinity displays
-
4
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
DisplayPort support
-
+
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
DirectX® 11
CUDA
+
-
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.3
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
-
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-