NVIDIA RTX A1000 vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA RTX A1000

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 8GB VRAM RTX A1000 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 A1000 's Advantages

Released 12 years late

Boost Clock1462MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 91.87GB/s)

2016 additional rendering cores

Lower TDP (50W vs 102W)

Score

Benchmark

FP32 (float)

RTX A1000 +653%

6.737 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

RTX A1000

VS

GeForce GT 645 OEM

Graphics Card

Apr 2024

Release Date

Apr 2012

Quadro Ampere

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

727 MHz

Base Clock

-

1462 MHz

Boost Clock

-

1500 MHz

Memory Clock

957 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

192bit

192.0GB/s

Bandwidth

91.87GB/s

Render Config

-

18

SM Count

6

2304

Shading Units

288

72

TMUs

48

32

ROPs

24

72

Tensor Cores

-

18

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

46.78 GPixel/s

Pixel Rate

9.312 GPixel/s

105.3 GTexel/s

Texture Rate

37.25 GTexel/s

6.737 TFLOPS

FP16 (half)

-

6.737 TFLOPS

FP32 (float)

894.0 GFLOPS

105.3 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

50W

TDP

102W

250 W

Suggested PSU

300 W

4x mini-DisplayPort 1.4a

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

8.7 billion

Transistors

1.95 billion

200 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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