GeForce GTX 680 and Radeon R7 450 OEM - video card comparison
GeForce GTX 680
Radeon R7 450 OEM
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK104
Cape Verde
Market segment
Desktop
Desktop
Release date
March 2012
June 2016
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
1058 MHz
-
Core clock speed
1006 MHz
925 MHz
CUDA cores
1536
-
Floating-point performance
3,090.4 gflops
947.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
1,500 million
Pipelines / CUDA cores
1536
512
Power consumption (TDP)
195 Watt
65 Watt
Texture fill rate
128.8 billion/sec
29.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
2048 MB
2 GB
Memory bus width
256-bit GDDR5
128 Bit
Memory clock speed
6000 MHz
4.5 GB/s
Memory bandwidth
192.2 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
Multi monitor support
4 displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_1)
CUDA
+
-
OpenCL
1.2
2.1 (1.2)
OpenGL
4.2
4.6
Shader Model
5.1
6.5 (5.1)
Vulkan
1.1.126
1.2.170