Radeon HD 6770 and Radeon RX 6400 - video card comparison
Passmark - benchmark score Radeon HD 6770 vs Radeon RX 6400
Radeon HD 6770
1286
Radeon RX 6400
7776
Radeon HD 6770
Radeon RX 6400
Architecture
TeraScale 2 (2009−2015)
RDNA 2.0 (2020−2022)
GPU code name
Juniper
Navi 24
Market segment
Desktop
Desktop
Release date
January 2011
January 2022
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 4.0 x4
Supplementary power connectors
1x 6-pin
None
Boost clock speed
900 MHz
2321 MHz
Floating-point performance
1,360.0 gflops
-
Manufacturing process technology
40 nm
6 nm
Number of transistors
1,040 million
5,400 million
Pipelines / CUDA cores
800
768
Power consumption (TDP)
108 Watt
53 Watt
Texture fill rate
34.00
111.4
Memory type
GDDR5
GDDR6
Maximum RAM amount
1 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1050 MHz
16 GB/s
Memory bandwidth
76.8 GB/s
128.0 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x HDMI 2.1, 1x DisplayPort 1.4a
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 Ultimate (12_2)
Mantle
-
-
OpenCL
1.2
2.2
OpenGL
4.4
4.6
Shader Model
5.0
6.6
Vulkan
-
1.3
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-