GeForce GTX 770 and Radeon Sky 900 - video card comparison
GeForce GTX 770
Radeon Sky 900
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK104
Tahiti
Market segment
Desktop
Desktop
Release date
May 2013
March 2013
Bus support
PCI Express 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Minimum recommended system power
600 Watt
-
Supplementary power connectors
One 8-pin and one 6-pin
2x 8-pin
Boost clock speed
1085 MHz
950 MHz
Core clock speed
1046 MHz
825 MHz
CUDA cores
1536
-
Floating-point performance
3,333 gflops
2x 3,405 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
4,313 million
Pipelines / CUDA cores
1536
3584
Power consumption (TDP)
230 Watt
300 Watt
Maximum GPU temperature
98 °C
-
Texture fill rate
134 billion/sec
106.4
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
6 GB
Memory bus width
256 Bit
384 Bit
Memory clock speed
7012 MHz
5000 MHz
Memory bandwidth
224.3 GB/s
480 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
1x DVI, 1x mini-DisplayPort
Multi monitor support
4 displays
-
Dual-link DVI support
-
1
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_1)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.3
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.2.131
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-
PhysX
+
-