NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce RTX 3090 Ti

VS

NVIDIA GeForce GTX 645 OEM

NVIDIA GeForce RTX 3090 Ti

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 24GB VRAM GeForce RTX 3090 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 450W)

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 8 years and 9 months late

Boost Clock1860MHz

More VRAM (24GB vs 1024GB)

Larger VRAM bandwidth (1008GB/s vs 64.00GB/s)

10176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

GeForce RTX 3090 Ti +4114%

40 TFLOPS

GeForce GTX 645 OEM

VS

GeForce RTX 3090 Ti

Graphics Card

Apr 2013

Release Date

Jan 2022

GeForce 600

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1560 MHz

-

Boost Clock

1860 MHz

1000 MHz

Memory Clock

1313 MHz

Memory

1024MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

1008GB/s

Render Config

-

SM Count

84

576

Shading Units

10752

48

TMUs

336

16

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

208.3 GPixel/s

39.55 GTexel/s

Texture Rate

625.0 GTexel/s

-

FP16 (half)

40.00 TFLOPS

949.2 GFLOPS

FP32 (float)

40.00 TFLOPS

39.55 GFLOPS

FP64 (double)

625.0 GFLOPS

Board Design

65W

TDP

450W

250 W

Suggested PSU

850 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 16-pin

Graphics Processor

GK106

GPU Name

GA102

GK106-200-A1

GPU Variant

GA102-350-A1

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

2.54 billion

Transistors

28.3 billion

221 mm²

Die Size

628 mm²

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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