AMD Radeon RX 6400 vs AMD Radeon RX 7900 GRE
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Jul 2023
Generation
Navi II
Navi III
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x4
PCIe 4.0 x16
Clock Speeds
Base Clock
1923 MHz
1287 MHz
Boost Clock
2321 MHz
2245 MHz
Memory Clock
2000 MHz
2250 MHz
Memory
Memory Size
4GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
64bit
256bit
Bandwidth
128.0GB/s
576.0GB/s
Render Config
Compute Units
12
80
Shading Units
768
5120
TMUs
48
320
ROPs
32
160
RT Cores
12
80
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
1024 KB
6 MB
L3 Cache
16 MB
64 MB
Theoretical Performance
Pixel Rate
74.27 GPixel/s
359.2 GPixel/s
Texture Rate
111.4 GTexel/s
718.4 GTexel/s
FP16 (half)
7.130 TFLOPS
91.96 TFLOPS
FP32 (float)
3.565 TFLOPS
45.98 TFLOPS
FP64 (double)
222.8 GFLOPS
1436.8 GFLOPS
Graphics Processor
GPU Name
Navi 24
Navi 31
GPU Variant
Navi 24 XL(215-135000046)
Navi 31 XL(215-145000206)
Architecture
RDNA 2.0
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
6 nm
5 nm
Transistors
5.4 billion
57.7 billion
Die Size
107 mm²
529 mm²
Board Design
TDP
53W
260W
Suggested PSU
250 W
600 W
Outputs
1x HDMI 2.11x DisplayPort 1.4a
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Power Connectors
None
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.2
2.2
Vulkan
1.3
1.3
Shader Model
6.7
6.8
Benchmark
3DMark Time Spy
—
22,476
3DMark Time Spy Extreme
—
10,591
3DMark Speed Way
—
4,417
Cyberpunk 2077 2160p
—
40
Cyberpunk 2077 1440p
—
88
Blender
—
3,114
Cyberpunk 2077 1080p
—
130
▲ Specs Compare
Data sourced from official specifications and benchmark tests.