NVIDIA GeForce GTX 645 OEM vs NVIDIA A2

VS

NVIDIA GeForce GTX 645 OEM

NVIDIA A2

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

Main Differences

NVIDIA A2 's Advantages

Released 8 years and 7 months late

Boost Clock1770MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (200.1GB/s vs 64.00GB/s)

704 additional rendering cores

Lower TDP (60W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

A2 +377%

4.531 TFLOPS

GeForce GTX 645 OEM

VS

A2

Graphics Card

Apr 2013

Release Date

Nov 2021

GeForce 600

Generation

Quadro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1440 MHz

-

Boost Clock

1770 MHz

1000 MHz

Memory Clock

1563 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

200.1GB/s

Render Config

-

SM Count

10

576

Shading Units

1280

48

TMUs

40

16

ROPs

32

-

Tensor Cores

40

-

RT Cores

10

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

56.64 GPixel/s

39.55 GTexel/s

Texture Rate

70.80 GTexel/s

-

FP16 (half)

4.531 TFLOPS

949.2 GFLOPS

FP32 (float)

4.531 TFLOPS

39.55 GFLOPS

FP64 (double)

70.80 GFLOPS

Board Design

65W

TDP

60W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

GA107

GK106-200-A1

GPU Variant

-

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

2.54 billion

Transistors

Unknown

221 mm²

Die Size

Unknown

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

8.6

5.1

Shader Model

6.6

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