Radeon HD 4870 X2 and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon HD 4870 X2 vs Radeon RX 6400
Radeon HD 4870 X2
1348
Radeon RX 6400
7778
Radeon HD 4870 X2
Radeon RX 6400
Architecture
TeraScale (2005−2013)
RDNA 2.0 (2020−2022)
GPU code name
R700
Navi 24
Market segment
Desktop
Desktop
Release date
August 2008
January 2022
Interface
PCIe 2.0 x16
PCIe 4.0 x4
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
-
2321 MHz
Core clock speed
700 MHz
-
Floating-point performance
2x 1,120.0 gflops
-
Manufacturing process technology
55 nm
6 nm
Number of transistors
956 million
5,400 million
Pipelines / CUDA cores
800
768
Power consumption (TDP)
286 Watt
53 Watt
Texture fill rate
28.00
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
1 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
3600 MHz
16 GB/s
Memory bandwidth
115.2 GB/s
128.0 GB/s
Display Connectors
2x DVI, 1x S-Video
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
-
+
DirectX
10.1 (10_1)
12 Ultimate (12_2)
OpenCL
1.1
2.2
OpenGL
3.3
4.6
Shader Model
4.1
6.6
Vulkan
N/A
1.3