Radeon HD 7970 and T400 - video card comparison
Passmark - benchmark score Radeon HD 7970 vs T400
Radeon HD 7970
5405
T400
3739
Radeon HD 7970
T400
Architecture
GCN (2011−2017)
Turing (2018−2021)
GPU code name
Tahiti XT
TU117
Market segment
Desktop
Desktop
Release date
December 2011
May 2021
Bus support
PCIe 2.1 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
925 MHz
1425 MHz
Floating-point performance
3,789 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
4,313 million
4,700 million
Pipelines / CUDA cores
2048
384
Power consumption (TDP)
300 Watt
30 Watt
Texture fill rate
118.4
34.20
Memory type
GDDR5
GDDR6
Maximum RAM amount
6 GB
2 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
1375 MHz
10 GB/s
Memory bandwidth
264 GB/s
80 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
3x mini-DisplayPort
Eyefinity
+
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12 (12_1)
CUDA
-
7.5
Mantle
-
-
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.6
Vulkan
-
1.2
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-