Radeon HD 7990 and GeForce GTX 750 Ti OEM - video card comparison
Radeon HD 7990
GeForce GTX 750 Ti OEM
Architecture
GCN 1.0 (2012−2020)
Kepler (2012−2018)
GPU code name
Malta
GK106
Market segment
Desktop
Desktop
Release date
April 2013
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
None
Boost clock speed
1000 MHz
1098 MHz
Core clock speed
950 MHz
1033 MHz
Floating-point performance
2x 4,096 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
2,540 million
Pipelines / CUDA cores
2048
960
Power consumption (TDP)
375 Watt
150 Watt
Texture fill rate
128.0
87.84
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
6000 MHz
6 GB/s
Memory bandwidth
288.0 GB/s
192.3 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
No outputs
DirectX
12 (11_1)
12 (11_0)
CUDA
-
3.0
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.5 (5.1)
Vulkan
1.2.131
1.2.175