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

VS

AMD Radeon RX 640 Mobile NVIDIA GeForce RTX 3080 Ti Mobile

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

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Lower TDP (50W vs 115W)

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

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

GeForce RTX 3080 Ti Mobile +1100%

18.71 TFLOPS

Radeon RX 640 Mobile

VS

GeForce RTX 3080 Ti Mobile

Graphics Card

May 2019

Release Date

Jan 2022

Mobility Radeon

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1082 MHz

Base Clock

810 MHz

1218 MHz

Boost Clock

1260 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

512.0GB/s

Render Config

-

SM Count

58

10

Compute Units

-

640

Shading Units

7424

40

TMUs

232

16

ROPs

96

-

Tensor Cores

232

-

RT Cores

58

16 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

4 MB

Theoretical Performance

19.49 GPixel/s

Pixel Rate

121.0 GPixel/s

48.72 GTexel/s

Texture Rate

292.3 GTexel/s

1.559 TFLOPS

FP16 (half)

18.71 TFLOPS

1.559 TFLOPS

FP32 (float)

18.71 TFLOPS

97.44 GFLOPS

FP64 (double)

292.3 GFLOPS

Graphics Processor

Polaris 23

GPU Name

GA103S

Polaris 23 XT

GPU Variant

GN20-E8-A1

GCN 4.0

Architecture

Ampere

GlobalFoundries

Foundry

Samsung

14 nm

Process Size

8 nm

2.2 billion

Transistors

Unknown

103 mm²

Die Size

496 mm²

Board Design

50W

TDP

115W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

6.4

Shader Model

6.5

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