GPU Comparison
RADEON
AMD Radeon RX 6400
CORE STATE
Navi 24
VRAM
4 GB
CLOCK SPEED
2321 MHz
TDP
53 W
BUS WIDTH
64 bit
ARCHITECTURE
RDNA 2.0
PROCESS
6 nm
LAUNCH DATE
2022
VS
RADEON
Radeon RX 7900 GRE
CORE STATE
Navi 31
VRAM
16 GB
CLOCK SPEED
2245 MHz
TDP
260 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 3.0
PROCESS
5 nm
LAUNCH DATE
2023
PERFORMANCE BENCHMARKS
3dmark_3dmark_steel_nomad_dx12
geekbench_opencl
geekbench_vulkan
passmark_directx_10
passmark_directx_11
passmark_directx_12
passmark_directx_9
passmark_g2d
passmark_g3d
passmark_gpu_compute
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6400
RX 7900 GRE
Core Specs
Shading Units
768
5,120
+566.7%
Shaders
768
5,120
+566.7%
TMUs
48
320
+566.7%
ROPs
32
160
+400.0%
Compute Units
12
80
+566.7%
Clocks
Base Clock
1923 MHz
1287 MHz
Boost Clock
2321 MHz
2245 MHz
Game Clock
2039 MHz
1880 MHz
Shader Clock
—
1880 MHz
Memory Clock
2000 MHz
16 Gbps effective
2250 MHz
18 Gbps effective
Memory
Memory Size
4 GB
16 GB
VRAM (MB)
4,096
16,384
+300.0%
Memory Type
GDDR6
GDDR6
Memory Bus
64 bit
256 bit
Bandwidth
128.0 GB/s
576.0 GB/s
Cache
L1 Cache
128 KB per Array
256 KB per Array
L2 Cache
1024 KB
6 MB
L3 Cache
16 MB
64 MB
L0 Cache
32 KB per WGP
64 KB per WGP
Performance
Pixel Rate
74.27 GPixel/s
359.2 GPixel/s
Texture Rate
111.4 GTexel/s
718.4 GTexel/s
FP32 (TFLOPS)
3.565 TFLOPS
45.98 TFLOPS
FP64 (TFLOPS)
222.8 GFLOPS (1:16)
1,436.8 GFLOPS (1:32)
FP16 (TFLOPS)
7.130 TFLOPS (2:1)
91.96 TFLOPS (2:1)
AI/RT
RT Cores
12
80
+566.7%
Matrix Cores
—
160
Power
TDP
53 W
260 W
TDP (W)
53
260
+390.6%
Suggested PSU
250 W
600 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
RDNA 2.0
RDNA 3.0
GPU Name
Navi 24
Navi 31
Codename
—
Plum Bonito
Generation
Navi II
(RX 6000)
Navi III
(RX 7000)
Process Size
6 nm
5 nm
Transistors
5,400 million
57,700 million
Die Size
107 mm²
529 mm²
Foundry
TSMC
TSMC
Density
50.5M / mm²
109.1M / mm²
AMD MCM
GCD Transistors
—
45,400 million
GCD Die Size
—
304.35 mm²
MCD Transistors
—
2,050 million x6
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.2
2.2
Shader Model
6.8
6.8
Physical
Slot Width
Single-slot
Dual-slot
Length
—
276 mm
10.9 inches
Height
—
110 mm
4.3 inches
Outputs
1x HDMI 2.11x DisplayPort 1.4a
1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C
Bus Interface
PCIe 4.0 x4
PCIe 4.0 x16
Other
Launch Price
159 USD
549 USD
Production
End-of-life
Active
Predecessor
Navi
Navi II
Successor
Navi III
Navi IV