Radeon HD 4870 X2 and T400 - video card comparison
Passmark - benchmark score Radeon HD 4870 X2 vs T400
Radeon HD 4870 X2
1348
T400
3739
Radeon HD 4870 X2
T400
Architecture
TeraScale (2005−2013)
Turing (2018−2021)
GPU code name
R700
TU117
Market segment
Desktop
Desktop
Release date
August 2008
May 2021
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
-
1425 MHz
Core clock speed
700 MHz
-
Floating-point performance
2x 1,120.0 gflops
-
Manufacturing process technology
55 nm
12 nm
Number of transistors
956 million
4,700 million
Pipelines / CUDA cores
800
384
Power consumption (TDP)
286 Watt
30 Watt
Texture fill rate
28.00
34.20
Memory type
GDDR5
GDDR6
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
3600 MHz
10 GB/s
Memory bandwidth
115.2 GB/s
80 GB/s
Display Connectors
2x DVI, 1x S-Video
3x mini-DisplayPort
DirectX
10.1 (10_1)
12 (12_1)
CUDA
-
7.5
OpenCL
1.1
3.0
OpenGL
3.3
4.6
Shader Model
4.1
6.6
Vulkan
N/A
1.2