NVIDIA B300 vs NVIDIA GeForce GTX 675MX Mac Edition
GPU · Specs Compare
Graphics Card
Release Date
Sep 2025
Apr 2013
Generation
Server Blackwell
GeForce 600M
Type
Desktop
Mobile
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1665 MHz
—
Boost Clock
2032 MHz
—
Memory Clock
2000 MHz
1250 MHz
Memory
Memory Size
144GB
1024MB
Memory Type
HBM3e
GDDR5
Memory Bus
4096bit
256bit
Bandwidth
4.10TB/s
160.0GB/s
Render Config
SM Count
148
—
Shading Units
18944
1344
TMUs
592
112
ROPs
24
32
Tensor Cores
592
—
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
50 MB
512 KB
Theoretical Performance
Pixel Rate
48.77 GPixel/s
20.13 GPixel/s
Texture Rate
1202.9 GTexel/s
80.53 GTexel/s
FP16 (half)
1231.8 TFLOPS
—
FP32 (float)
76.99 TFLOPS
1.933 TFLOPS
FP64 (double)
1202.9 GFLOPS
80.53 GFLOPS
Graphics Processor
GPU Name
GB110
GK104
Architecture
Blackwell Ultra
Kepler
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
104 billion
3.54 billion
Die Size
Unknown
294 mm²
GPU Variant
—
N13E-GSR-A2
Board Design
TDP
1400W
100W
Suggested PSU
1800 W
—
Outputs
No outputs
No outputs
Graphics Features
DirectX
N/A
12 (11_0)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.1
CUDA
10.3
3.0
Shader Model
N/A
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.