AMD Radeon RX 550X Mobile vs AMD Radeon HD 7870M

VS

AMD Radeon RX 550X Mobile AMD Radeon HD 7870M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 550X Mobile and 2GB VRAM Radeon HD 7870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X Mobile 's Advantages

Released 6 years late

Boost Clock1176MHz

AMD Radeon HD 7870M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 48.00GB/s)

Lower TDP (45W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 550X Mobile +46%

1.505 TFLOPS

Radeon HD 7870M

1.024 TFLOPS

Radeon RX 550X Mobile

VS

Radeon HD 7870M

Graphics Card

Apr 2018

Release Date

Apr 2012

Mobility Radeon

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1176 MHz

Boost Clock

-

1500 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

10

Compute Units

10

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

18.82 GPixel/s

Pixel Rate

12.80 GPixel/s

47.04 GTexel/s

Texture Rate

32.00 GTexel/s

1.505 TFLOPS

FP16 (half)

-

1.505 TFLOPS

FP32 (float)

1024 GFLOPS

94.08 GFLOPS

FP64 (double)

64.00 GFLOPS

Graphics Processor

Polaris 23

GPU Name

Heathrow

Polaris 23 MXT

GPU Variant

Heathrow XT (216-0835033)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

1.5 billion

103 mm²

Die Size

123 mm²

Board Design

50W

TDP

45W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

5.1

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