Radeon RX 6400 vs Radeon RX 580G
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 8GB VRAM Radeon RX 580G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Released 3 years and 3 months late
Boost Clock has increased by 75% (2321MHz vs 1330MHz)
Lower TDP (53W vs 185W)
Radeon RX 580G 's Advantages
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (256.0GB/s vs 128.0GB/s)
1536 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6400
3565
Radeon RX 580G
+71%
6129
Graphics Card
Jan 2022
Release Date
Oct 2018
Navi II
Generation
Polaris
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 3.0 x16
Clock Speeds
1923 MHz
Base Clock
1257 MHz
2321 MHz
Boost Clock
1330 MHz
2000 MHz
Memory Clock
2000 MHz
Memory
4GB
Memory Size
8GB
GDDR6
Memory Type
GDDR5
64bit
Memory Bus
256bit
128.0GB/s
Bandwidth
256.0GB/s
Render Config
12
Compute Units
36
768
Shading Units
2304
48
TMUs
144
32
ROPs
32
12
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
2 MB
16 MB
L3 Cache
-
Theoretical Performance
74.27 GPixel/s
Pixel Rate
42.56 GPixel/s
111.4 GTexel/s
Texture Rate
191.5 GTexel/s
7.130 TFLOPS
FP16 (half)
6.129 TFLOPS
3.565 TFLOPS
FP32 (float)
6.129 TFLOPS
222.8 GFLOPS
FP64 (double)
383.0 GFLOPS
Board Design
53W
TDP
185W
250 W
Suggested PSU
450 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
1x HDMI 2.0b
3x DisplayPort 1.4a
None
Power Connectors
1x 8-pin
Graphics Processor
Navi 24
GPU Name
Polaris 20
Navi 24 XL
(215-135000046)
GPU Variant
Polaris 20 XTX
(215-0910038)
RDNA 2.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
6 nm
Process Size
14 nm
5.4 billion
Transistors
5.7 billion
107 mm²
Die Size
232 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.2
OpenCL
2.1
1.3
Vulkan
1.2
6.7
Shader Model
6.4
