NVIDIA B300 vs NVIDIA GeForce GTX 780 Rev. 2
GPU · Specs Compare
Graphics Card
Release Date
Sep 2025
Sep 2013
Generation
Server Blackwell
GeForce 700
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1665 MHz
863 MHz
Boost Clock
2032 MHz
902 MHz
Memory Clock
2000 MHz
1502 MHz
Memory
Memory Size
144GB
3GB
Memory Type
HBM3e
GDDR5
Memory Bus
4096bit
384bit
Bandwidth
4.10TB/s
288.4GB/s
Render Config
SM Count
148
—
Shading Units
18944
2304
TMUs
592
192
ROPs
24
48
Tensor Cores
592
—
L1 Cache
256 KB (per SM)
16 KB (per SMX)
L2 Cache
50 MB
1536 KB
Theoretical Performance
Pixel Rate
48.77 GPixel/s
43.30 GPixel/s
Texture Rate
1202.9 GTexel/s
173.2 GTexel/s
FP16 (half)
1231.8 TFLOPS
—
FP32 (float)
76.99 TFLOPS
4.156 TFLOPS
FP64 (double)
1202.9 GFLOPS
173.2 GFLOPS
Graphics Processor
GPU Name
GB110
GK110B
Architecture
Blackwell Ultra
Kepler
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
104 billion
7.08 billion
Die Size
Unknown
561 mm²
GPU Variant
—
GK110-300-B1
Board Design
TDP
1400W
250W
Suggested PSU
1800 W
600 W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
—
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
N/A
12 (11_1)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.1
CUDA
10.3
3.5
Shader Model
N/A
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.