GeForce 840A and GeForce2 PRO - video card comparison

GeForce 840A

GeForce2 PRO

Architecture

Maxwell (2014−2018)

Celsius (1999−2005)

GPU code name

GM108

NV15 A5

Market segment

Desktop

Desktop

Release date

March 2014

December 2000

Interface

PCIe 3.0 x8

AGP 4x

Supplementary power connectors

-

None

Boost clock speed

1124 MHz

-

Core clock speed

1029 MHz

200 MHz

Floating-point performance

863.2 gflops

-

Manufacturing process technology

28 nm

150 nm

Number of transistors

-

25 million

Pipelines / CUDA cores

384

-

Power consumption (TDP)

33 Watt

-

Texture fill rate

17.98

1.600

Memory type

DDR3

DDR

Maximum RAM amount

2 GB

64 MB

Memory bus width

64 Bit

128 Bit

Memory clock speed

2002 MHz

400 MHz

Memory bandwidth

16.02 GB/s

6.4 GB/s

Display Connectors

No outputs

1x VGA

DirectX

12 (11_0)

7.0

CUDA

5.0

-

OpenCL

1.2

N/A

OpenGL

4.6

1.2

Shader Model

5.1

-

Vulkan

1.1.126

N/A