GeForce GTX 680 and Radeon X1650 GT - video card comparison
GeForce GTX 680
Radeon X1650 GT
Architecture
Kepler (2012−2018)
R500 (2005−2007)
GPU code name
GK104
RV560
Market segment
Desktop
Desktop
Release date
March 2012
May 2007
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
1058 MHz
-
Core clock speed
1006 MHz
400 MHz
CUDA cores
1536
-
Floating-point performance
3,090.4 gflops
-
Manufacturing process technology
28 nm
80 nm
Number of transistors
3,540 million
330 million
Pipelines / CUDA cores
1536
-
Power consumption (TDP)
195 Watt
-
Texture fill rate
128.8 billion/sec
3.200
Memory type
GDDR5
GDDR3
Maximum RAM amount
2048 MB
128 MB
Memory bus width
256-bit GDDR5
128 Bit
Memory clock speed
6000 MHz
800 MHz
Memory bandwidth
192.2 GB/s
12.8 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x DVI, 1x VGA, 1x S-Video
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
9.0c (9_3)
CUDA
+
-
OpenCL
1.2
N/A
OpenGL
4.2
2.0
Shader Model
5.1
3.0
Vulkan
1.1.126
N/A