NVIDIA GeForce RTX 4070 Max-Q vs NVIDIA GeForce GT 645M

VS

NVIDIA GeForce RTX 4070 Max-Q

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 4070 Max Q 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 4070 Max-Q 's Advantages

Released 10 years and 3 months late

Boost Clock1230MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 28.80GB/s)

4224 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 35W)

Score

Benchmark

FP32 (float)

GeForce RTX 4070 Max Q +1984%

11.34 TFLOPS

GeForce GT 645M

0.544 TFLOPS

GeForce RTX 4070 Max Q

VS

GeForce GT 645M

Graphics Card

Jan 2023

Release Date

Oct 2012

GeForce 40 Mobile

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

735 MHz

Base Clock

-

1230 MHz

Boost Clock

-

1750 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

28.80GB/s

Render Config

-

36

SM Count

-

4608

Shading Units

384

144

TMUs

32

48

ROPs

16

144

Tensor Cores

-

36

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

32 MB

L2 Cache

256 KB

-

Theoretical Performance

59.04 GPixel/s

Pixel Rate

5.672 GPixel/s

177.1 GTexel/s

Texture Rate

22.69 GTexel/s

11.34 TFLOPS

FP16 (half)

-

11.34 TFLOPS

FP32 (float)

544.5 GFLOPS

177.1 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

35W

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD106

GPU Name

GK107

GN21-X6

GPU Variant

N13P-GS

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

1.27 billion

190 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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