NVIDIA GeForce RTX 4090 Max-Q vs ATI Mobility Radeon HD 4870

VS

NVIDIA GeForce RTX 4090 Max-Q

ATI Mobility Radeon HD 4870

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 512MB VRAM Mobility Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Max-Q 's Advantages

Released 14 years late

Boost Clock1455MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (448.0GB/s vs 56.83GB/s)

8928 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +3117%

28.31 TFLOPS

Mobility Radeon HD 4870

0.88 TFLOPS

GeForce RTX 4090 Max Q

VS

Mobility Radeon HD 4870

Graphics Card

Jan 2023

Release Date

Jan 2009

GeForce 40 Mobile

Generation

M9x

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

930 MHz

Base Clock

-

1455 MHz

Boost Clock

-

1750 MHz

Memory Clock

888 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

56.83GB/s

Render Config

-

Compute Units

10

76

SM Count

-

9728

Shading Units

800

304

TMUs

40

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

256 KB

-

Theoretical Performance

163.0 GPixel/s

Pixel Rate

8.800 GPixel/s

442.3 GTexel/s

Texture Rate

22.00 GTexel/s

28.31 TFLOPS

FP16 (half)

-

28.31 TFLOPS

FP32 (float)

880.0 GFLOPS

442.3 GFLOPS

FP64 (double)

176.0 GFLOPS

Board Design

80W

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

AD103

GPU Name

M98

GN21-X11

GPU Variant

M98 XT L2 (216-0732023)

Ada Lovelace

Architecture

TeraScale

TSMC

Foundry

TSMC

4 nm

Process Size

55 nm

45.9 billion

Transistors

0.956 billion

379 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

4.1

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