Radeon R9 285 and Radeon RX 6900 - video card comparison
Passmark - benchmark score Radeon R9 285 vs Radeon RX 6900
Radeon R9 285
6880
Radeon RX 6900
27641
Radeon R9 285
Radeon RX 6900
Architecture
GCN 3.0 (2014−2017)
RDNA 2.0 (2020−2022)
GPU code name
Tonga
Navi 21
Market segment
Desktop
Desktop
Release date
September 2014
October 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 6-pin
2x 8-pin
Boost clock speed
-
2105 MHz
Core clock speed
918 MHz
-
Floating-point performance
3,290 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
5,000 million
23,000 million
Pipelines / CUDA cores
1792
4608
Power consumption (TDP)
190 Watt
255 Watt
Texture fill rate
102.8
606.2
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
16 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5.5 GB/s
16 GB/s
Memory bandwidth
176.0 GB/s
512.0 GB/s
Display Connectors
2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
1x HDMI, 2x DisplayPort, 1x USB Type-C
HDMI
+
+
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenCL
2.1
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2.170
1.2