AMD Radeon RX 480 Mobile vs AMD Radeon HD 8870M

VS

AMD Radeon RX 480 Mobile AMD Radeon HD 8870M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 480 Mobile and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 480 Mobile 's Advantages

Released 3 years and 4 months late

Boost Clock has increased by 39% (1077MHz vs 775MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 72.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 480 Mobile +400%

4.963 TFLOPS

Radeon HD 8870M

0.992 TFLOPS

Radeon RX 480 Mobile

VS

Radeon HD 8870M

Graphics Card

Aug 2016

Release Date

Apr 2013

Mobility Radeon

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

725 MHz

1077 MHz

Boost Clock

775 MHz

2000 MHz

Memory Clock

1125 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

36

Compute Units

10

2304

Shading Units

640

144

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

Theoretical Performance

34.46 GPixel/s

Pixel Rate

12.40 GPixel/s

155.1 GTexel/s

Texture Rate

31.00 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

992.0 GFLOPS

310.2 GFLOPS

FP64 (double)

62.00 GFLOPS

Graphics Processor

Ellesmere

GPU Name

Venus

Ellesmere XT

GPU Variant

Venus XT (216-0846000)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

1.5 billion

232 mm²

Die Size

123 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

CUDA

-

6.4

Shader Model

6.5 (5.1)

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