GeForce GTX 780 Rev. 2 and Radeon X850 XT - video card comparison
GeForce GTX 780 Rev. 2
Radeon X850 XT
Architecture
Kepler (2012−2018)
R400 (2004−2008)
GPU code name
GK110B
R480
Market segment
Desktop
Desktop
Release date
September 2013
December 2004
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Boost clock speed
902 MHz
-
Core clock speed
863 MHz
520 MHz
Floating-point performance
4,156 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
7,080 million
160 million
Pipelines / CUDA cores
2304
-
Power consumption (TDP)
250 Watt
69 Watt
Texture fill rate
173.2
8.320
Memory type
GDDR5
GDDR3
Maximum RAM amount
3 GB
256 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
6008 MHz
1080 MHz
Memory bandwidth
288.4 GB/s
34.56 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_1)
9.0b (9_2)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
-
Vulkan
1.1.126
N/A