NVIDIA GeForce GT 745A vs NVIDIA GeForce RTX 3080 Mobile 16 GB

VS

NVIDIA GeForce GT 745A

NVIDIA GeForce RTX 3080 Mobile 16 GB

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A and 16GB VRAM GeForce RTX 3080 Mobile 16 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745A 's Advantages

Lower TDP (33W vs 115W)

NVIDIA GeForce RTX 3080 Mobile 16 GB 's Advantages

Released 7 years and 5 months late

Boost Clock has increased by 69% (1545MHz vs 915MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.80GB/s)

5760 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 745A

0.703 TFLOPS

GeForce RTX 3080 Mobile 16 GB +2599%

18.98 TFLOPS

GeForce GT 745A

VS

GeForce RTX 3080 Mobile 16 GB

Graphics Card

Aug 2013

Release Date

Jan 2021

GeForce 700A

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

837 MHz

Base Clock

1110 MHz

915 MHz

Boost Clock

1545 MHz

900 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

16GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

448.0GB/s

Render Config

-

SM Count

48

384

Shading Units

6144

32

TMUs

192

16

ROPs

96

-

Tensor Cores

192

-

RT Cores

48

16 KB (per SMX)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

7.320 GPixel/s

Pixel Rate

148.3 GPixel/s

29.28 GTexel/s

Texture Rate

296.6 GTexel/s

-

FP16 (half)

18.98 TFLOPS

702.7 GFLOPS

FP32 (float)

18.98 TFLOPS

29.28 GFLOPS

FP64 (double)

296.6 GFLOPS

Board Design

33W

TDP

115W

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GK107

GPU Name

GA104

N14P-LP

GPU Variant

GA104-775-A1

Kepler

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.27 billion

Transistors

17.4 billion

118 mm²

Die Size

392 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

6.8

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