AMD Radeon R5 M255 vs NVIDIA RTX A4000 Max-Q

VS

AMD Radeon R5 M255

NVIDIA RTX A4000 Max-Q

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 8GB VRAM RTX A4000 Max Q 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 6 years and 6 months late

Boost Clock has increased by 48% (1395MHz vs 940MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (352.0GB/s vs 32.00GB/s)

4736 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

RTX A4000 Max Q +1880%

14.28 TFLOPS

Radeon R5 M255

VS

RTX A4000 Max Q

Graphics Card

Oct 2014

Release Date

Apr 2021

Gem System

Generation

Quadro Ampere-M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

925 MHz

Base Clock

780 MHz

940 MHz

Boost Clock

1395 MHz

1000 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

256bit

32.00GB/s

Bandwidth

352.0GB/s

Render Config

6

Compute Units

-

SM Count

40

384

Shading Units

5120

24

TMUs

160

8

ROPs

80

-

Tensor Cores

160

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

111.6 GPixel/s

22.56 GTexel/s

Texture Rate

223.2 GTexel/s

721.9 GFLOPS

FP16 (half)

14.28 TFLOPS

721.9 GFLOPS

FP32 (float)

14.28 TFLOPS

45.12 GFLOPS

FP64 (double)

223.2 GFLOPS

Board Design

Unknown

TDP

80W

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

Topaz

GPU Name

GA104

Topaz PRO (216-0858030)

GPU Variant

-

GCN 3.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.55 billion

Transistors

17.4 billion

125 mm²

Die Size

392 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

8.6

6.5

Shader Model

6.7

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