NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GTX 745 OEM

VS

NVIDIA GeForce RTX 3080 Ti 20 GB

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 4GB VRAM GeForce GTX 745 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

Released 7 years and 11 months late

Boost Clock1665MHz

More VRAM (20GB vs 4GB)

Larger VRAM bandwidth (760.3GB/s vs 28.80GB/s)

9856 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

Lower TDP (55W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +4200%

34.1 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

Blender

GeForce RTX 3080 Ti 20 GB +10929%

5956

GeForce GTX 745 OEM

54

OctaneBench

GeForce RTX 3080 Ti 20 GB +3906%

641

GeForce GTX 745 OEM

16

GeForce RTX 3080 Ti 20 GB

VS

GeForce GTX 745 OEM

Graphics Card

Jan 2022

Release Date

Feb 2014

GeForce 30

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

-

1665 MHz

Boost Clock

-

1188 MHz

Memory Clock

900 MHz

Memory

20GB

Memory Size

4GB

GDDR6X

Memory Type

DDR3

320bit

Memory Bus

128bit

760.3GB/s

Bandwidth

28.80GB/s

Render Config

-

80

SM Count

-

10240

Shading Units

384

320

TMUs

24

112

ROPs

16

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SMM)

6 MB

L2 Cache

2 MB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

16.53 GPixel/s

532.8 GTexel/s

Texture Rate

24.79 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

793.3 GFLOPS

532.8 GFLOPS

FP64 (double)

24.79 GFLOPS

Board Design

350W

TDP

55W

750 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 2.0 1x VGA

1x 12-pin

Power Connectors

None

Graphics Processor

GA102

GPU Name

GM107

GA102-225-A1

GPU Variant

GM107-220-A2

Ampere

Architecture

Maxwell

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

1.87 billion

628 mm²

Die Size

148 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.6

CUDA

5.0

6.6

Shader Model

5.1

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