NVIDIA B300 SXM6 AC vs NVIDIA Tesla M40
GPU Specs Compare
Graphics Card
Release Date
Sep 2025
Nov 2015
Generation
Server Blackwell
Tesla Maxwell
Type
Desktop
Professional
Bus Interface
PCIe 6.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1665 MHz
948 MHz
Boost Clock
2032 MHz
1112 MHz
Memory Clock
2000 MHz
1502 MHz
Memory
Memory Size
288GB
12GB
Memory Type
HBM3e
GDDR5
Memory Bus
8192bit
384bit
Bandwidth
8.19TB/s
288.4GB/s
Render Config
SM Count
148
-
Shading Units
18944
3072
TMUs
592
192
ROPs
24
96
Tensor Cores
592
-
L1 Cache
256 KB (per SM)
48 KB (per SMM)
L2 Cache
126 MB
3 MB
Theoretical Performance
Pixel Rate
48.77 GPixel/s
106.8 GPixel/s
Texture Rate
1202.9 GTexel/s
213.5 GTexel/s
FP16 (half)
76.99 TFLOPS
-
FP32 (float)
76.99 TFLOPS
6.832 TFLOPS
FP64 (double)
1202.9 GFLOPS
213.5 GFLOPS
Graphics Processor
GPU Name
GB110
GM200
Architecture
Blackwell Ultra
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
208 billion
8 billion
Die Size
1628 mm²
601 mm²
GPU Variant
-
GM200-895-A1
Board Design
TDP
1100W
250W
Suggested PSU
1500 W
600 W
Outputs
No outputs
No outputs
Power Connectors
-
8-pin EPS
Graphics Features
DirectX
N/A
12 (12_1)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
CUDA
10.3
5.2
Shader Model
N/A
6.7
📊 Benchmark
3DMark Time Spy
-
5,323
OctaneBench
-
123
Blender
-
106