GeForce GTX 780 Rev. 2 and Radeon HD 6450 GDDR5 - video card comparison
GeForce GTX 780 Rev. 2
Radeon HD 6450 GDDR5
Architecture
Kepler (2012−2018)
Terascale 2 (2009−2015)
GPU code name
GK110B
Caicos
Market segment
Desktop
Desktop
Release date
September 2013
April 2011
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
902 MHz
-
Core clock speed
863 MHz
750 MHz
Floating-point performance
4,156 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
7,080 million
-
Pipelines / CUDA cores
2304
160
Power consumption (TDP)
250 Watt
27 Watt
Texture fill rate
173.2
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
1 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
6008 MHz
900 MHz
Memory bandwidth
288.4 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
-
HDMI
+
-
DirectX
12 (11_1)
11
CUDA
3.5
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.1.126
-