AMD Radeon RX 6900 XTX vs AMD Radeon RX 9070
GPU Specs Compare
Graphics Card
Release Date
Unknown
Mar 2025
Generation
Navi II
Navi IV
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
2075 MHz
1330 MHz
Boost Clock
2435 MHz
2520 MHz
Memory Clock
2250 MHz
2518 MHz
Memory
Memory Size
16GB
16GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
256bit
Bandwidth
576.0GB/s
644.6GB/s
Render Config
Compute Units
80
56
Shading Units
5120
3584
TMUs
320
224
ROPs
128
128
RT Cores
80
56
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
4 MB
8 MB
L3 Cache
128 MB
64 MB
Tensor Cores
-
112
Theoretical Performance
Pixel Rate
311.7 GPixel/s
322.6 GPixel/s
Texture Rate
779.2 GTexel/s
564.5 GTexel/s
FP16 (half)
49.87 TFLOPS
72.25 TFLOPS
FP32 (float)
24.93 TFLOPS
36.13 TFLOPS
FP64 (double)
1.558 TFLOPS
1129 GFLOPS
Graphics Processor
GPU Name
Navi 21
Navi 48
GPU Variant
Navi 21 XTXH(215-121000247)
Navi 48 XT(215-176600331)
Architecture
RDNA 2.0
RDNA 4.0
Foundry
TSMC
TSMC
Process Size
7 nm
4 nm
Transistors
26.8 billion
53.9 billion
Die Size
520 mm²
357 mm²
Board Design
TDP
330W
220W
Suggested PSU
700 W
550 W
Outputs
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
1x HDMI 2.1b3x DisplayPort 2.1a
Power Connectors
2x 8-pin
2x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
2.2
Vulkan
1.3
1.3
Shader Model
6.5
6.8