AMD Radeon RX 6700M vs NVIDIA GeForce GT 645M

VS

AMD Radeon RX 6700M

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 10GB VRAM Radeon RX 6700M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6700M 's Advantages

Released 8 years and 7 months late

Boost Clock2400MHz

More VRAM (10GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 28.80GB/s)

1920 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 135W)

Score

Benchmark

FP32 (float)

Radeon RX 6700M +1933%

11.06 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon RX 6700M

VS

GeForce GT 645M

Graphics Card

May 2021

Release Date

Oct 2012

Mobility Radeon

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1489 MHz

Base Clock

-

2400 MHz

Boost Clock

-

2000 MHz

Memory Clock

900 MHz

Memory

10GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

160bit

Memory Bus

128bit

320.0GB/s

Bandwidth

28.80GB/s

Render Config

36

Compute Units

-

2304

Shading Units

384

144

TMUs

32

64

ROPs

16

-

36

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

256 KB

80 MB

L3 Cache

-

Theoretical Performance

153.6 GPixel/s

Pixel Rate

5.672 GPixel/s

345.6 GTexel/s

Texture Rate

22.69 GTexel/s

22.12 TFLOPS

FP16 (half)

-

11.06 TFLOPS

FP32 (float)

544.5 GFLOPS

691.2 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

135W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 22

GPU Name

GK107

Navi 22

GPU Variant

N13P-GS

RDNA 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

17.2 billion

Transistors

1.27 billion

335 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.5

Shader Model

5.1

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