NVIDIA B300 vs NVIDIA GeForce RTX 5070
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Mar 2025
Generation
Server Blackwell
GeForce 50
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1665 MHz
2325 MHz
Boost Clock
2032 MHz
2512 MHz
Memory Clock
2000 MHz
1750 MHz
Memory
Memory Size
144GB
12GB
Memory Type
HBM3e
GDDR7
Memory Bus
4096bit
192bit
Bandwidth
4.10TB/s
672.0GB/s
Render Config
SM Count
148
48
Shading Units
18944
6144
TMUs
592
192
ROPs
24
80
Tensor Cores
592
192
L1 Cache
256 KB (per SM)
128 KB (per SM)
L2 Cache
50 MB
48 MB
RT Cores
-
48
Theoretical Performance
Pixel Rate
48.77 GPixel/s
201.0 GPixel/s
Texture Rate
1202.9 GTexel/s
482.3 GTexel/s
FP16 (half)
1231.8 TFLOPS
30.87 TFLOPS
FP32 (float)
76.99 TFLOPS
30.87 TFLOPS
FP64 (double)
1202.9 GFLOPS
482.3 GFLOPS
Graphics Processor
GPU Name
GB110
GB205
Architecture
Blackwell Ultra
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
104 billion
31.1 billion
Die Size
Unknown
263 mm²
GPU Variant
-
GB205-300-A1
Board Design
TDP
1400W
250W
Suggested PSU
1800 W
600 W
Outputs
No outputs
1x HDMI 2.1b3x DisplayPort 2.1b
Power Connectors
-
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.4
CUDA
10.3
12.0
Shader Model
N/A
6.8
📊 Benchmark
3DMark Time Spy
-
22,544
3DMark Time Spy Extreme
-
10,789
3DMark Speed Way
-
5,896
Blender
-
6,218