AMD Radeon RX 9070 vs NVIDIA B300
GPU Specs Compare
Graphics Card
Release Date
Mar 2025
Sep 2025
Generation
Navi IV
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1330 MHz
1665 MHz
Boost Clock
2520 MHz
2032 MHz
Memory Clock
2518 MHz
2000 MHz
Memory
Memory Size
16GB
144GB
Memory Type
GDDR6
HBM3e
Memory Bus
256bit
4096bit
Bandwidth
644.6GB/s
4.10TB/s
Render Config
Compute Units
56
-
Shading Units
3584
18944
TMUs
224
592
ROPs
128
24
Tensor Cores
112
592
RT Cores
56
-
L1 Cache
128 KB per Array
256 KB (per SM)
L2 Cache
8 MB
50 MB
L3 Cache
64 MB
-
SM Count
-
148
Theoretical Performance
Pixel Rate
322.6 GPixel/s
48.77 GPixel/s
Texture Rate
564.5 GTexel/s
1202.9 GTexel/s
FP16 (half)
72.25 TFLOPS
1231.8 TFLOPS
FP32 (float)
36.13 TFLOPS
76.99 TFLOPS
FP64 (double)
1129 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
Navi 48
GB110
GPU Variant
Navi 48 XT(215-176600331)
-
Architecture
RDNA 4.0
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
4 nm
5 nm
Transistors
53.9 billion
104 billion
Die Size
357 mm²
Unknown
Board Design
TDP
220W
1400W
Suggested PSU
550 W
1800 W
Outputs
1x HDMI 2.1b3x DisplayPort 2.1a
No outputs
Power Connectors
2x 8-pin
-
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.2
3.0
Vulkan
1.3
N/A
Shader Model
6.8
N/A
CUDA
-
10.3