Radeon RX 6400 vs Radeon RX 7650 GRE
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 8GB VRAM Radeon RX 7650 GRE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 6400 's Advantages
Lower TDP (53W vs 165W)
Radeon RX 7650 GRE 's Advantages
Released 3 years and 1 months late
Boost Clock has increased by 16% (2695MHz vs 2321MHz)
More VRAM (8GB vs 4GB)
Larger VRAM bandwidth (288.0GB/s vs 128.0GB/s)
1280 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 6400
3565
Radeon RX 7650 GRE
+519%
22080
3DMark Speed Way
Radeon RX 6400
103
Radeon RX 7650 GRE
+1892%
2052
Graphics Card
Jan 2022
Release Date
Feb 2025
Navi II
Generation
Navi III
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 4.0 x8
Clock Speeds
1923 MHz
Base Clock
1720 MHz
2321 MHz
Boost Clock
2695 MHz
2000 MHz
Memory Clock
2250 MHz
Memory
4GB
Memory Size
8GB
GDDR6
Memory Type
GDDR6
64bit
Memory Bus
128bit
128.0GB/s
Bandwidth
288.0GB/s
Render Config
12
Compute Units
32
768
Shading Units
2048
48
TMUs
128
32
ROPs
64
12
RT Cores
32
128 KB per Array
L1 Cache
128 KB per Array
1024 KB
L2 Cache
2 MB
16 MB
L3 Cache
32 MB
Theoretical Performance
74.27 GPixel/s
Pixel Rate
172.5 GPixel/s
111.4 GTexel/s
Texture Rate
345.0 GTexel/s
7.130 TFLOPS
FP16 (half)
44.15 TFLOPS
3.565 TFLOPS
FP32 (float)
22.08 TFLOPS
222.8 GFLOPS
FP64 (double)
689.9 GFLOPS
Board Design
53W
TDP
165W
250 W
Suggested PSU
450 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
1x HDMI 2.1a
3x DisplayPort 2.1
None
Power Connectors
1x 8-pin
Graphics Processor
Navi 24
GPU Name
Navi 33
Navi 24 XL
(215-135000046)
GPU Variant
Navi 33 XL
(215-163000057)
RDNA 2.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
6 nm
Process Size
6 nm
5.4 billion
Transistors
13.3 billion
107 mm²
Die Size
204 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
2.2
OpenCL
2.2
1.3
Vulkan
1.3
6.7
Shader Model
6.8
