Radeon HD 7870 and T400 - video card comparison
Passmark - benchmark score Radeon HD 7870 vs T400
Radeon HD 7870
4779
T400
3739
Radeon HD 7870
T400
Architecture
GCN (2011−2017)
Turing (2018−2021)
GPU code name
Pitcairn XT
TU117
Market segment
Desktop
Desktop
Release date
March 2012
May 2021
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
1425 MHz
Core clock speed
1000 MHz
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
2800 Million
4,700 million
Pipelines / CUDA cores
1280
384
Power consumption (TDP)
175 Watt
30 Watt
Texture fill rate
80.00
34.20
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
4800 MHz
10 GB/s
Memory bandwidth
153.6 GB/s
80 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
3x mini-DisplayPort
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (12_1)
CUDA
-
7.5
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.6
Vulkan
1.2.131
1.2