GeForce GTX 680 and Radeon E8950 - video card comparison
GeForce GTX 680
Radeon E8950
Architecture
Kepler (2012−2018)
GCN 3.0 (2014−2017)
GPU code name
GK104
Amethyst
Market segment
Desktop
Desktop
Release date
March 2012
September 2015
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
1058 MHz
1000 MHz
Core clock speed
1006 MHz
735 MHz
CUDA cores
1536
-
Floating-point performance
3,090.4 gflops
4,096 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
5,000 million
Pipelines / CUDA cores
1536
2048
Power consumption (TDP)
195 Watt
95 Watt
Texture fill rate
128.8 billion/sec
128.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
2048 MB
8 GB
Memory bus width
256-bit GDDR5
256 Bit
Memory clock speed
6000 MHz
6000 MHz
Memory bandwidth
192.2 GB/s
192.0 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
No outputs
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (12_0)
CUDA
+
-
OpenCL
1.2
2.0
OpenGL
4.2
4.6
Shader Model
5.1
6.3
Vulkan
1.1.126
1.2.131