NVIDIA GeForce RTX 4080 Mobile vs NVIDIA GeForce GT 745A

VS

NVIDIA GeForce RTX 4080 Mobile

NVIDIA GeForce GT 745A

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Mobile and 2GB VRAM GeForce GT 745A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 Mobile 's Advantages

Released 9 years and 5 months late

Boost Clock has increased by 82% (1665MHz vs 915MHz)

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (432.0GB/s vs 28.80GB/s)

7040 additional rendering cores

NVIDIA GeForce GT 745A 's Advantages

Lower TDP (33W vs 110W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Mobile +3416%

24.72 TFLOPS

GeForce GT 745A

0.703 TFLOPS

GeForce RTX 4080 Mobile

VS

GeForce GT 745A

Graphics Card

Jan 2023

Release Date

Aug 2013

GeForce 40 Mobile

Generation

GeForce 700A

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1290 MHz

Base Clock

837 MHz

1665 MHz

Boost Clock

915 MHz

2250 MHz

Memory Clock

900 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

28.80GB/s

Render Config

-

58

SM Count

-

7424

Shading Units

384

232

TMUs

32

80

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

48 MB

L2 Cache

256 KB

-

Theoretical Performance

133.2 GPixel/s

Pixel Rate

7.320 GPixel/s

386.3 GTexel/s

Texture Rate

29.28 GTexel/s

24.72 TFLOPS

FP16 (half)

-

24.72 TFLOPS

FP32 (float)

702.7 GFLOPS

386.3 GFLOPS

FP64 (double)

29.28 GFLOPS

Board Design

110W

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD104

GPU Name

GK107

GN21-X9

GPU Variant

N14P-LP

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

35.8 billion

Transistors

1.27 billion

295 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.9

CUDA

3.0

6.7

Shader Model

5.1

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