GeForce GTX 780 Rev. 2 and Radeon X1550 - video card comparison
GeForce GTX 780 Rev. 2
Radeon X1550
Architecture
Kepler (2012−2018)
Ultra-Threaded SE
GPU code name
GK110B
RV516
Market segment
Desktop
Desktop
Release date
September 2013
2007
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
902 MHz
-
Core clock speed
863 MHz
550 MHz
Floating-point performance
4,156 gflops
-
Manufacturing process technology
28 nm
90 nm
Number of transistors
7,080 million
105 million
Pipelines / CUDA cores
2304
-
Power consumption (TDP)
250 Watt
27 Watt
Texture fill rate
173.2
2.200
Memory type
GDDR5
DDR2
Maximum RAM amount
3 GB
256 MB
Memory bus width
384 Bit
128 Bit
Memory clock speed
6008 MHz
800 MBps
Memory bandwidth
288.4 GB/s
12.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (11_1)
9.0c (9_3)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
3.0
Vulkan
1.1.126
N/A