GeForce GTX 780 Rev. 2 and Radeon HD 8990 OEM - video card comparison
GeForce GTX 780 Rev. 2
Radeon HD 8990 OEM
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK110B
Malta
Market segment
Desktop
Desktop
Release date
September 2013
April 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
2x 8-pin
Boost clock speed
902 MHz
1000 MHz
Core clock speed
863 MHz
950 MHz
Floating-point performance
4,156 gflops
2x 4,096 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
7,080 million
4,313 million
Pipelines / CUDA cores
2304
2048
Power consumption (TDP)
250 Watt
375 Watt
Texture fill rate
173.2
128.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
3 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
6008 MHz
6000 MHz
Memory bandwidth
288.4 GB/s
288.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 4x mini-DisplayPort
HDMI
+
-
DirectX
12 (11_1)
12 (11_1)
CUDA
3.5
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.2.131