NVIDIA RTX A4000 Max-Q vs AMD Radeon RX 640 Mobile

VS

NVIDIA RTX A4000 Max-Q

AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 8GB VRAM RTX A4000 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 RTX A4000 Max-Q 's Advantages

Released 1 years and 11 months late

Boost Clock has increased by 15% (1395MHz vs 1218MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (352.0GB/s vs 48.00GB/s)

4480 additional rendering cores

AMD Radeon RX 640 Mobile 's Advantages

Lower TDP (50W vs 80W)

Score

Benchmark

FP32 (float)

RTX A4000 Max Q +815%

14.28 TFLOPS

Radeon RX 640 Mobile

1.559 TFLOPS

RTX A4000 Max Q

VS

Radeon RX 640 Mobile

Graphics Card

Apr 2021

Release Date

May 2019

Quadro Ampere-M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

780 MHz

Base Clock

1082 MHz

1395 MHz

Boost Clock

1218 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

352.0GB/s

Bandwidth

48.00GB/s

Render Config

-

Compute Units

10

40

SM Count

-

5120

Shading Units

640

160

TMUs

40

80

ROPs

16

160

Tensor Cores

-

40

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

-

Theoretical Performance

111.6 GPixel/s

Pixel Rate

19.49 GPixel/s

223.2 GTexel/s

Texture Rate

48.72 GTexel/s

14.28 TFLOPS

FP16 (half)

1.559 TFLOPS

14.28 TFLOPS

FP32 (float)

1.559 TFLOPS

223.2 GFLOPS

FP64 (double)

97.44 GFLOPS

Board Design

80W

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GA104

GPU Name

Polaris 23

-

GPU Variant

Polaris 23 XT

Ampere

Architecture

GCN 4.0

Samsung

Foundry

GlobalFoundries

8 nm

Process Size

14 nm

17.4 billion

Transistors

2.2 billion

392 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

-

6.7

Shader Model

6.4

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