GeForce GTX 645 OEM and B200 SXM 192 GB - video card comparison

GeForce GTX 645 OEM

B200 SXM 192 GB

Architecture

Kepler (2012−2018)

Blackwell

GPU code name

GK106

GB100

Market segment

Desktop

Release date

April 2013

2024 (recently)

Interface

PCIe 3.0 x16

PCIe 5.0 x16

Supplementary power connectors

None

Boost clock speed

1837 MHz

Core clock speed

824 MHz

Floating-point performance

949.2 gflops

Manufacturing process technology

28 nm

5 nm

Number of transistors

2,540 million

208,000 million

Pipelines / CUDA cores

576

16896

Power consumption (TDP)

65 Watt

1000 Watt

Texture fill rate

39.55

969.9

Memory type

GDDR5

HBM3e

Maximum RAM amount

1 GB

96 GB

Memory bus width

128 Bit

4096 Bit

Memory clock speed

4000 MHz

8 GB/s

Memory bandwidth

64 GB/s

4.1 TB/s

Display Connectors

1x DVI, 1x HDMI, 1x DisplayPort

No outputs

HDMI

DirectX

12 (11_0)

N/A

CUDA

3.0

9.0

OpenCL

1.2

3.0

OpenGL

4.6

N/A

Shader Model

5.1

N/A

Vulkan

1.1.126

N/A