NVIDIA GeForce RTX 4070 GDDR6 vs NVIDIA B300 SXM6 AC
GPU Specs Compare
Graphics Card
Release Date
Aug 2024
Sep 2025
Generation
GeForce 40
Server Blackwell
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 6.0 x16
Clock Speeds
Base Clock
1920 MHz
1665 MHz
Boost Clock
2475 MHz
2032 MHz
Memory Clock
2500 MHz
2000 MHz
Memory
Memory Size
12GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
192bit
8192bit
Bandwidth
480.0GB/s
8.19TB/s
Render Config
SM Count
46
148
Shading Units
5888
18944
TMUs
184
592
ROPs
64
24
Tensor Cores
184
592
RT Cores
46
-
L1 Cache
128 KB (per SM)
256 KB (per SM)
L2 Cache
36 MB
126 MB
Theoretical Performance
Pixel Rate
158.4 GPixel/s
48.77 GPixel/s
Texture Rate
455.4 GTexel/s
1202.9 GTexel/s
FP16 (half)
29.15 TFLOPS
76.99 TFLOPS
FP32 (float)
29.15 TFLOPS
76.99 TFLOPS
FP64 (double)
455.4 GFLOPS
1202.9 GFLOPS
Graphics Processor
GPU Name
AD104
GB110
GPU Variant
AD104-2XX-A1
-
Architecture
Ada Lovelace
Blackwell Ultra
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
35.8 billion
208 billion
Die Size
294 mm²
1628 mm²
Board Design
TDP
200W
1100W
Suggested PSU
550 W
1500 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Power Connectors
1x 16-pin
-
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.9
10.3
Shader Model
6.8
N/A