NVIDIA RTX A5000-8Q vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA RTX A5000-8Q

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM RTX A5000 8Q 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 RTX A5000-8Q 's Advantages

Released 9 years late

Boost Clock1695MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (768.0GB/s vs 91.87GB/s)

7904 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 230W)

Score

Benchmark

FP32 (float)

RTX A5000 8Q +3006%

27.77 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

RTX A5000 8Q

VS

GeForce GT 645 OEM

Graphics Card

Apr 2021

Release Date

Apr 2012

Quadro Ampere

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1170 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2000 MHz

Memory Clock

957 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

192bit

768.0GB/s

Bandwidth

91.87GB/s

Render Config

-

64

SM Count

6

8192

Shading Units

288

256

TMUs

48

96

ROPs

24

256

Tensor Cores

-

64

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

6 MB

L2 Cache

384 KB

-

Theoretical Performance

162.7 GPixel/s

Pixel Rate

9.312 GPixel/s

433.9 GTexel/s

Texture Rate

37.25 GTexel/s

27.77 TFLOPS

FP16 (half)

-

27.77 TFLOPS

FP32 (float)

894.0 GFLOPS

433.9 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

230W

TDP

102W

550 W

Suggested PSU

300 W

4x DisplayPort 1.4a

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 8-pin

Power Connectors

-

Graphics Processor

GA102

GPU Name

GF114

-

Ampere

Architecture

Fermi 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

1.95 billion

628 mm²

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

6.7

Shader Model

5.1

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