NVIDIA A2 vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA A2

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 16GB VRAM A2 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A2 's Advantages

Released 9 years and 7 months late

Boost Clock1770MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (200.1GB/s vs 91.87GB/s)

992 additional rendering cores

Lower TDP (60W vs 102W)

Score

Benchmark

FP32 (float)

A2 +406%

4.531 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

A2

VS

GeForce GT 645 OEM

Graphics Card

Nov 2021

Release Date

Apr 2012

Quadro

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1440 MHz

Base Clock

-

1770 MHz

Boost Clock

-

1563 MHz

Memory Clock

957 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

192bit

200.1GB/s

Bandwidth

91.87GB/s

Render Config

-

10

SM Count

6

1280

Shading Units

288

40

TMUs

48

32

ROPs

24

40

Tensor Cores

-

10

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

56.64 GPixel/s

Pixel Rate

9.312 GPixel/s

70.80 GTexel/s

Texture Rate

37.25 GTexel/s

4.531 TFLOPS

FP16 (half)

-

4.531 TFLOPS

FP32 (float)

894.0 GFLOPS

70.80 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

60W

TDP

102W

250 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

-

Graphics Processor

GA107

GPU Name

GF114

-

Ampere

Architecture

Fermi 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

Unknown

Transistors

1.95 billion

Unknown

Die Size

332 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.6

CUDA

2.1

6.6

Shader Model

5.1

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