NVIDIA GeForce RTX 3070 Ti Mobile vs NVIDIA GeForce GT 645M

VS

NVIDIA GeForce RTX 3070 Ti Mobile NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3070 Ti Mobile and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3070 Ti Mobile 's Advantages

Released 9 years and 3 months late

Boost Clock1410MHz

More VRAM (8GB vs 2GB)

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

5504 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3070 Ti Mobile +2951%

16.6 TFLOPS

GeForce GT 645M

0.544 TFLOPS

GeForce RTX 3070 Ti Mobile

VS

GeForce GT 645M

Graphics Card

Jan 2022

Release Date

Oct 2012

GeForce 30 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

-

1410 MHz

Boost Clock

-

1750 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

28.80GB/s

Render Config

46

SM Count

-

Compute Units

-

5888

Shading Units

384

184

TMUs

32

96

ROPs

16

184

Tensor Cores

-

46

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

256 KB

Theoretical Performance

135.4 GPixel/s

Pixel Rate

5.672 GPixel/s

259.4 GTexel/s

Texture Rate

22.69 GTexel/s

16.60 TFLOPS

FP16 (half)

-

16.60 TFLOPS

FP32 (float)

544.5 GFLOPS

259.4 GFLOPS

FP64 (double)

22.69 GFLOPS

Graphics Processor

GA104

GPU Name

GK107

-

GPU Variant

N13P-GS

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

17.4 billion

Transistors

1.27 billion

392 mm²

Die Size

118 mm²

Board Design

115W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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

8.6

CUDA

3.0

6.6

Shader Model

5.1

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