Radeon RX 6400 vs Radeon RX 460 1024SP
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 2GB VRAM Radeon RX 460 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Released 5 years late
Boost Clock has increased by 93% (2321MHz vs 1200MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (128.0GB/s vs 112.0GB/s)
Lower TDP (53W vs 75W)
Radeon RX 460 1024SP 's Advantages
256 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6400
+45%
3565
Radeon RX 460 1024SP
2458
Graphics Card
Jan 2022
Release Date
Jan 2017
Navi II
Generation
Arctic Islands
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 3.0 x8
Clock Speeds
1923 MHz
Base Clock
1090 MHz
2321 MHz
Boost Clock
1200 MHz
2000 MHz
Memory Clock
1750 MHz
Memory
4GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
64bit
Memory Bus
128bit
128.0GB/s
Bandwidth
112.0GB/s
Render Config
12
Compute Units
16
768
Shading Units
1024
48
TMUs
64
32
ROPs
16
12
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
1024 KB
16 MB
L3 Cache
-
Theoretical Performance
74.27 GPixel/s
Pixel Rate
19.20 GPixel/s
111.4 GTexel/s
Texture Rate
76.80 GTexel/s
7.130 TFLOPS
FP16 (half)
2.458 TFLOPS
3.565 TFLOPS
FP32 (float)
2.458 TFLOPS
222.8 GFLOPS
FP64 (double)
153.6 GFLOPS
Board Design
53W
TDP
75W
250 W
Suggested PSU
250 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 2.0b
1x DisplayPort 1.4a
None
Power Connectors
None
Graphics Processor
Navi 24
GPU Name
Baffin
Navi 24 XL
(215-135000046)
GPU Variant
Baffin XT
RDNA 2.0
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
6 nm
Process Size
14 nm
5.4 billion
Transistors
3 billion
107 mm²
Die Size
123 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
