AMD Radeon E8870 vs AMD Radeon RX 7900M

VS

AMD Radeon E8870

AMD Radeon RX 7900M

We compared two Mobile platform GPUs: 4GB VRAM Radeon E8870 and 16GB VRAM Radeon RX 7900M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E8870 's Advantages

Lower TDP (75W vs 180W)

AMD Radeon RX 7900M 's Advantages

Released 8 years and 1 months late

Boost Clock2090MHz

More VRAM (16GB vs 4GB)

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

3840 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon E8870

1.536 TFLOPS

Radeon RX 7900M +2407%

38.52 TFLOPS

Radeon E8870

VS

Radeon RX 7900M

Graphics Card

Sep 2015

Release Date

Oct 2023

Embedded

Generation

Navi Mobile

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2090 MHz

1500 MHz

Memory Clock

2250 MHz

Memory

4GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

576.0GB/s

Render Config

12

Compute Units

72

-

768

Shading Units

4608

48

TMUs

288

16

ROPs

192

-

RT Cores

72

16 KB (per CU)

L1 Cache

256 KB per Array

256 KB

L2 Cache

6 MB

-

L3 Cache

64 MB

Theoretical Performance

16.00 GPixel/s

Pixel Rate

401.3 GPixel/s

48.00 GTexel/s

Texture Rate

601.9 GTexel/s

-

FP16 (half)

77.05 TFLOPS

1.536 TFLOPS

FP32 (float)

38.52 TFLOPS

96.00 GFLOPS

FP64 (double)

1204 GFLOPS

Board Design

75W

TDP

180W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Saturn

GPU Name

Navi 31

Saturn PRO

GPU Variant

Navi 31

GCN 2.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

2.08 billion

Transistors

57.7 billion

160 mm²

Die Size

529 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.2

1.2

Vulkan

1.3

-

6.3

Shader Model

6.7

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