NVIDIA GeForce RTX 4090 vs NVIDIA B100
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 96GB VRAM B100 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 4090 's Advantages
Boost Clock has increased by 37% (2520MHz vs 1837MHz)
Lower TDP (450W vs 1000W)
NVIDIA B100 's Advantages
Released 2 years and 2 months late
More VRAM (96GB vs 24GB)
Larger VRAM bandwidth (4.10TB/s vs 1.01TB/s)
512 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce RTX 4090
+33%
82.58 TFLOPS
B100
62.08 TFLOPS
Graphics Card
Sep 2022
Release Date
Nov 2024
GeForce 40
Generation
Server Blackwell
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
2235 MHz
Base Clock
1665 MHz
2520 MHz
Boost Clock
1837 MHz
1313 MHz
Memory Clock
2000 MHz
Memory
24GB
Memory Size
96GB
GDDR6X
Memory Type
HBM3e
384bit
Memory Bus
4096bit
1.01TB/s
Bandwidth
4.10TB/s
Render Config
-
-
-
128
SM Count
132
16384
Shading Units
16896
512
TMUs
528
176
ROPs
24
512
Tensor Cores
528
128
RT Cores
-
128 KB (per SM)
L1 Cache
256 KB (per SM)
72 MB
L2 Cache
50 MB
-
-
-
Theoretical Performance
443.5 GPixel/s
Pixel Rate
44.09 GPixel/s
1290 GTexel/s
Texture Rate
969.9 GTexel/s
82.58 TFLOPS
FP16 (half)
248.3 TFLOPS
82.58 TFLOPS
FP32 (float)
62.08 TFLOPS
1290 GFLOPS
FP64 (double)
31.04 TFLOPS
Board Design
450W
TDP
1000W
850 W
Suggested PSU
1400 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
No outputs
1x 16-pin
Power Connectors
-
Graphics Processor
AD102
GPU Name
GB102
AD102-300-A1
GPU Variant
-
Ada Lovelace
Architecture
Blackwell
TSMC
Foundry
TSMC
5 nm
Process Size
5 nm
76.3 billion
Transistors
104 billion
609 mm²
Die Size
Unknown
Graphics Features
12 Ultimate (12_2)
DirectX
N/A
4.6
OpenGL
N/A
3.0
OpenCL
3.0
1.3
Vulkan
N/A
8.9
CUDA
10.1
6.8
Shader Model
N/A
