NVIDIA GeForce RTX 3080 Ti Mobile vs AMD Radeon RX 640 Mobile

VS

NVIDIA GeForce RTX 3080 Ti Mobile

AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 3080 Ti Mobile and 2GB VRAM Radeon RX 640 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti Mobile 's Advantages

Released 2 years and 8 months late

Boost Clock has increased by 3% (1260MHz vs 1218MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 48.00GB/s)

6784 additional rendering cores

AMD Radeon RX 640 Mobile 's Advantages

Lower TDP (50W vs 115W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti Mobile +1100%

18.71 TFLOPS

Radeon RX 640 Mobile

1.559 TFLOPS

GeForce RTX 3080 Ti Mobile

VS

Radeon RX 640 Mobile

Graphics Card

Jan 2022

Release Date

May 2019

GeForce 30 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

810 MHz

Base Clock

1082 MHz

1260 MHz

Boost Clock

1218 MHz

2000 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

48.00GB/s

Render Config

-

Compute Units

10

58

SM Count

-

7424

Shading Units

640

232

TMUs

40

96

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

121.0 GPixel/s

Pixel Rate

19.49 GPixel/s

292.3 GTexel/s

Texture Rate

48.72 GTexel/s

18.71 TFLOPS

FP16 (half)

1.559 TFLOPS

18.71 TFLOPS

FP32 (float)

1.559 TFLOPS

292.3 GFLOPS

FP64 (double)

97.44 GFLOPS

Board Design

115W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GA103S

GPU Name

Polaris 23

GN20-E8-A1

GPU Variant

Polaris 23 XT

Ampere

Architecture

GCN 4.0

Samsung

Foundry

GlobalFoundries

8 nm

Process Size

14 nm

Unknown

Transistors

2.2 billion

496 mm²

Die Size

103 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2

8.6

CUDA

-

6.5

Shader Model

6.4

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