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 6800 XT
CORE STATE
Navi 21
VRAM
16 GB
CLOCK SPEED
2250 MHz
TDP
300 W
BUS WIDTH
256 bit
ARCHITECTURE
RDNA 2.0
PROCESS
7 nm
LAUNCH DATE
2020
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
geekbench_metal
DETAILED SPECIFICATIONS
SPECIFICATION
RX 6400
RX 6800 XT
Core Specs
Shading Units
768
4,608
+500.0%
Shaders
768
4,608
+500.0%
TMUs
48
288
+500.0%
ROPs
32
128
+300.0%
Compute Units
12
72
+500.0%
Clocks
Base Clock
1923 MHz
1825 MHz
Boost Clock
2321 MHz
2250 MHz
Game Clock
2039 MHz
2015 MHz
Memory Clock
2000 MHz
16 Gbps effective
2000 MHz
16 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
512.0 GB/s
Cache
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
1024 KB
4 MB
L3 Cache
16 MB
128 MB
L0 Cache
32 KB per WGP
32 KB per WGP
Performance
Pixel Rate
74.27 GPixel/s
288.0 GPixel/s
Texture Rate
111.4 GTexel/s
648.0 GTexel/s
FP32 (TFLOPS)
3.565 TFLOPS
20.74 TFLOPS
FP64 (TFLOPS)
222.8 GFLOPS (1:16)
1,296.0 GFLOPS (1:16)
FP16 (TFLOPS)
7.130 TFLOPS (2:1)
41.47 TFLOPS (2:1)
AI/RT
RT Cores
12
72
+500.0%
Power
TDP
53 W
300 W
TDP (W)
53
300
+466.0%
Suggested PSU
250 W
700 W
Power Connectors
None
2x 8-pin
Architecture
Architecture
RDNA 2.0
RDNA 2.0
GPU Name
Navi 24
Navi 21
Generation
Navi II
(RX 6000)
Navi II
(RX 6000)
Process Size
6 nm
7 nm
Transistors
5,400 million
26,800 million
Die Size
107 mm²
520 mm²
Foundry
TSMC
TSMC
Density
50.5M / mm²
51.5M / mm²
API Support
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
Vulkan
1.4
1.4
OpenCL
2.2
2.1
Shader Model
6.8
6.8
Physical
Slot Width
Single-slot
Dual-slot
Length
—
267 mm
10.5 inches
Height
—
120 mm
4.7 inches
Outputs
1x HDMI 2.11x DisplayPort 1.4a
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Bus Interface
PCIe 4.0 x4
PCIe 4.0 x16
Other
Launch Price
159 USD
649 USD
Production
End-of-life
End-of-life
Predecessor
Navi
Navi
Successor
Navi III
Navi III