Radeon HD 7990 and GeForce GTX 750 GM206 - video card comparison
Radeon HD 7990
GeForce GTX 750 GM206
Architecture
GCN 1.0 (2012−2020)
Maxwell 2.0 (2015−2019)
GPU code name
Malta
GM206
Market segment
Desktop
Desktop
Release date
April 2013
November 2015
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
-
Boost clock speed
1000 MHz
1239 MHz
Core clock speed
950 MHz
-
Floating-point performance
2x 4,096 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
2,940 million
Pipelines / CUDA cores
2048
512
Power consumption (TDP)
375 Watt
-
Texture fill rate
128.0
39.65
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
2 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
6000 MHz
5012 MHz
Memory bandwidth
288.0 GB/s
80.19 GB/s
Display Connectors
1x DVI, 4x mini-DisplayPort
2x DVI, 1x HDMI
HDMI
-
+
DirectX
12 (11_1)
12 (12_1)
CUDA
-
5.2
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
1.1.126