GeForce GTX 680 and Radeon HD 7970M Crossfire - video card comparison
GeForce GTX 680
Radeon HD 7970M Crossfire
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
GK104
Wimbledon XT
Market segment
Desktop
Laptop
Release date
March 2012
May 2012
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
Two 6-pin
-
SLI options
+
-
Boost clock speed
1058 MHz
-
Core clock speed
1006 MHz
850 MHz
CUDA cores
1536
-
Floating-point performance
3,090.4 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
-
Pipelines / CUDA cores
1536
2560
Power consumption (TDP)
195 Watt
200 Watt
Texture fill rate
128.8 billion/sec
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2048 MB
-
Memory bus width
256-bit GDDR5
2x 256 Bit
Memory clock speed
6000 MHz
4800 MHz
Memory bandwidth
192.2 GB/s
-
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
-
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
11.1
CUDA
+
-
OpenCL
1.2
-
OpenGL
4.2
-
Shader Model
5.1
-
Vulkan
1.1.126
-