Radeon R9 285 and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon R9 285 vs Radeon RX 6400
Radeon R9 285
6880
Radeon RX 6400
7778
Radeon R9 285
Radeon RX 6400
Architecture
GCN 3.0 (2014−2017)
RDNA 2.0 (2020−2022)
GPU code name
Tonga
Navi 24
Market segment
Desktop
Desktop
Release date
September 2014
January 2022
Interface
PCIe 3.0 x16
PCIe 4.0 x4
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
2321 MHz
Core clock speed
918 MHz
-
Floating-point performance
3,290 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
5,000 million
5,400 million
Pipelines / CUDA cores
1792
768
Power consumption (TDP)
190 Watt
53 Watt
Texture fill rate
102.8
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
5.5 GB/s
16 GB/s
Memory bandwidth
176.0 GB/s
128.0 GB/s
Display Connectors
2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
1x HDMI 2.1, 1x DisplayPort 1.4a
HDMI
+
+
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.1
2.2
OpenGL
4.6
4.6
Shader Model
6.5
6.6
Vulkan
1.2.170
1.3