NVIDIA GeForce RTX 4080 Max-Q vs AMD Radeon RX 640 Mobile

VS

NVIDIA GeForce RTX 4080 Max-Q AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Max Q 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 4080 Max-Q 's Advantages

Released 3 years and 8 months late

Boost Clock has increased by 11% (1350MHz vs 1218MHz)

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (336.0GB/s vs 48.00GB/s)

6784 additional rendering cores

AMD Radeon RX 640 Mobile 's Advantages

Lower TDP (50W vs 60W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Max Q +1185%

20.04 TFLOPS

Radeon RX 640 Mobile

1.559 TFLOPS

GeForce RTX 4080 Max Q

VS

Radeon RX 640 Mobile

Graphics Card

Jan 2023

Release Date

May 2019

GeForce 40 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

795 MHz

Base Clock

1082 MHz

1350 MHz

Boost Clock

1218 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

64bit

336.0GB/s

Bandwidth

48.00GB/s

Render Config

58

SM Count

-

Compute Units

10

7424

Shading Units

640

232

TMUs

40

80

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

48 MB

L2 Cache

512 KB

Theoretical Performance

108.0 GPixel/s

Pixel Rate

19.49 GPixel/s

313.2 GTexel/s

Texture Rate

48.72 GTexel/s

20.04 TFLOPS

FP16 (half)

1.559 TFLOPS

20.04 TFLOPS

FP32 (float)

1.559 TFLOPS

313.2 GFLOPS

FP64 (double)

97.44 GFLOPS

Graphics Processor

AD104

GPU Name

Polaris 23

GN21-X9

GPU Variant

Polaris 23 XT

Ada Lovelace

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

4 nm

Process Size

14 nm

35.8 billion

Transistors

2.2 billion

295 mm²

Die Size

103 mm²

Board Design

60W

TDP

50W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

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

8.9

CUDA

-

6.7

Shader Model

6.4

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