NVIDIA GeForce GT 640M vs AMD Radeon RX 6700M

VS

NVIDIA GeForce GT 640M AMD Radeon RX 6700M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M and 10GB VRAM Radeon RX 6700M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640M 's Advantages

Lower TDP (32W vs 135W)

AMD Radeon RX 6700M 's Advantages

Released 9 years and 2 months late

Boost Clock2400MHz

More VRAM (10GB vs 2GB)

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

1920 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M

0.48 TFLOPS

Radeon RX 6700M +2204%

11.06 TFLOPS

GeForce GT 640M

VS

Radeon RX 6700M

Graphics Card

Mar 2012

Release Date

May 2021

GeForce 600M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1489 MHz

-

Boost Clock

2400 MHz

900 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

10GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

160bit

28.80GB/s

Bandwidth

320.0GB/s

Render Config

-

SM Count

-

Compute Units

36

384

Shading Units

2304

32

TMUs

144

16

ROPs

64

-

Tensor Cores

-

RT Cores

36

16 KB (per SMX)

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

Theoretical Performance

5.000 GPixel/s

Pixel Rate

153.6 GPixel/s

20.00 GTexel/s

Texture Rate

345.6 GTexel/s

-

FP16 (half)

22.12 TFLOPS

480.0 GFLOPS

FP32 (float)

11.06 TFLOPS

20.00 GFLOPS

FP64 (double)

691.2 GFLOPS

Graphics Processor

GK107

GPU Name

Navi 22

N13P-GS

GPU Variant

Navi 22

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

1.27 billion

Transistors

17.2 billion

118 mm²

Die Size

335 mm²

Board Design

32W

TDP

135W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.5

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