Radeon HD 7970 and GeForce GTS 450 - video card comparison
Passmark - benchmark score Radeon HD 7970 vs GeForce GTS 450
Radeon HD 7970
5405
GeForce GTS 450
1359
Radeon HD 7970
GeForce GTS 450
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Tahiti XT
GF106
Market segment
Desktop
Desktop
Release date
December 2011
September 2010
Bus support
PCIe 2.1 x16
PCI-E 2.0 x 16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
6-pin
SLI options
-
+
Boost clock speed
925 MHz
-
Core clock speed
-
783 MHz
CUDA cores
-
192
Floating-point performance
3,789 gflops
601.3 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
4,313 million
1,170 million
Pipelines / CUDA cores
2048
192
Power consumption (TDP)
300 Watt
106 Watt
Maximum GPU temperature
-
100 °C
Texture fill rate
118.4
25.1 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
6 GB
1 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
1375 MHz
1804 (3608 data rate) MHz
Memory bandwidth
264 GB/s
57.7 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
Mini HDMITwo Dual Link DVI
Eyefinity
+
-
HDMI
+
+
Maximum VGA resolution
-
2048x1536
DisplayPort support
-
-
Audio input for HDMI
-
Internal
DirectX
DirectX® 11
12 (11_0)
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.6
4.2
Shader Model
5.1
5.1
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-