NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon E8870

VS

NVIDIA GeForce RTX 4090 Mobile AMD Radeon E8870

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 4GB VRAM Radeon E8870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages

Released 7 years and 4 months late

Boost Clock1695MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 96.00GB/s)

8960 additional rendering cores

AMD Radeon E8870 's Advantages

Lower TDP (75W vs 120W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Mobile +2047%

32.98 TFLOPS

Radeon E8870

1.536 TFLOPS

GeForce RTX 4090 Mobile

VS

Radeon E8870

Graphics Card

Jan 2023

Release Date

Sep 2015

GeForce 40 Mobile

Generation

Embedded

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1335 MHz

Base Clock

-

1695 MHz

Boost Clock

-

2250 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

96.00GB/s

Render Config

76

SM Count

-

Compute Units

12

9728

Shading Units

768

304

TMUs

48

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

189.8 GPixel/s

Pixel Rate

16.00 GPixel/s

515.3 GTexel/s

Texture Rate

48.00 GTexel/s

32.98 TFLOPS

FP16 (half)

-

32.98 TFLOPS

FP32 (float)

1.536 TFLOPS

515.3 GFLOPS

FP64 (double)

96.00 GFLOPS

Graphics Processor

AD103

GPU Name

Saturn

GN21-X11

GPU Variant

Saturn PRO

Ada Lovelace

Architecture

GCN 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

2.08 billion

379 mm²

Die Size

160 mm²

Board Design

120W

TDP

75W

-

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

2.0

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

6.3

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