ATI Mobility Radeon HD 3870 vs NVIDIA GeForce RTX 4090 Max-Q

VS

ATI Mobility Radeon HD 3870

NVIDIA GeForce RTX 4090 Max-Q

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 16GB VRAM GeForce RTX 4090 Max Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 80W)

NVIDIA GeForce RTX 4090 Max-Q 's Advantages

Released 14 years and 7 months late

Boost Clock1455MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (448.0GB/s vs 54.40GB/s)

9408 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870

0.422 TFLOPS

GeForce RTX 4090 Max Q +6608%

28.31 TFLOPS

Mobility Radeon HD 3870

VS

GeForce RTX 4090 Max Q

Graphics Card

Jun 2008

Release Date

Jan 2023

M8x

Generation

GeForce 40 Mobile

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

930 MHz

-

Boost Clock

1455 MHz

850 MHz

Memory Clock

1750 MHz

Memory

512MB

Memory Size

16GB

GDDR3

Memory Type

GDDR6

256bit

Memory Bus

256bit

54.40GB/s

Bandwidth

448.0GB/s

Render Config

4

Compute Units

-

SM Count

76

320

Shading Units

9728

16

TMUs

304

16

ROPs

112

-

Tensor Cores

304

-

RT Cores

76

-

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

64 MB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

163.0 GPixel/s

10.56 GTexel/s

Texture Rate

442.3 GTexel/s

-

FP16 (half)

28.31 TFLOPS

422.4 GFLOPS

FP32 (float)

28.31 TFLOPS

84.48 GFLOPS

FP64 (double)

442.3 GFLOPS

Board Design

55W

TDP

80W

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

M88

GPU Name

AD103

-

GPU Variant

GN21-X11

TeraScale

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

55 nm

Process Size

4 nm

0.666 billion

Transistors

45.9 billion

192 mm²

Die Size

379 mm²

Graphics Features

10.1 (10_1)

DirectX

12 Ultimate (12_2)

3.3

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.9

4.1

Shader Model

6.7

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