AMD Radeon HD 8870M vs NVIDIA GeForce RTX 3080 Mobile

VS

AMD Radeon HD 8870M

NVIDIA GeForce RTX 3080 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M and 8GB VRAM GeForce RTX 3080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Mobile 's Advantages

Released 7 years and 9 months late

Boost Clock has increased by 99% (1545MHz vs 775MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 72.00GB/s)

5504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870M

0.992 TFLOPS

GeForce RTX 3080 Mobile +1813%

18.98 TFLOPS

Radeon HD 8870M

VS

GeForce RTX 3080 Mobile

Graphics Card

Apr 2013

Release Date

Jan 2021

Solar System

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

725 MHz

Base Clock

1110 MHz

775 MHz

Boost Clock

1545 MHz

1125 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

448.0GB/s

Render Config

10

Compute Units

-

SM Count

48

640

Shading Units

6144

40

TMUs

192

16

ROPs

96

-

Tensor Cores

192

-

RT Cores

48

16 KB (per CU)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

12.40 GPixel/s

Pixel Rate

148.3 GPixel/s

31.00 GTexel/s

Texture Rate

296.6 GTexel/s

-

FP16 (half)

18.98 TFLOPS

992.0 GFLOPS

FP32 (float)

18.98 TFLOPS

62.00 GFLOPS

FP64 (double)

296.6 GFLOPS

Board Design

Unknown

TDP

115W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Venus

GPU Name

GA104

Venus XT (216-0846000)

GPU Variant

GA104-775-A1

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

1.5 billion

Transistors

17.4 billion

123 mm²

Die Size

392 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

8.6

6.5 (5.1)

Shader Model

6.6

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