GeForce GTX 680 and Radeon HD 7450 OEM - video card comparison
GeForce GTX 680
Radeon HD 7450 OEM
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK104
Caicos
Market segment
Desktop
Desktop
Release date
March 2012
January 2012
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
1058 MHz
-
Core clock speed
1006 MHz
625 MHz
CUDA cores
1536
-
Floating-point performance
3,090.4 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
370 million
Pipelines / CUDA cores
1536
160
Power consumption (TDP)
195 Watt
18 Watt
Texture fill rate
128.8 billion/sec
5.000
Memory type
GDDR5
GDDR3
Maximum RAM amount
2048 MB
512 MB
Memory bus width
256-bit GDDR5
64 Bit
Memory clock speed
6000 MHz
1066 MHz
Memory bandwidth
192.2 GB/s
8.528 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x DVI, 1x HDMI
Multi monitor support
4 displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.2
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A