AMD Radeon RX 550X Mobile vs AMD Radeon HD 8770M

VS

AMD Radeon RX 550X Mobile

AMD Radeon HD 8770M

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 550X Mobile and 2GB VRAM Radeon HD 8770M 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 5 years late

Boost Clock has increased by 43% (1176MHz vs 825MHz)

256 additional rendering cores

AMD Radeon HD 8770M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 48.00GB/s)

Score

Benchmark

FP32 (float)

Radeon RX 550X Mobile +137%

1.505 TFLOPS

Radeon HD 8770M

0.633 TFLOPS

Radeon RX 550X Mobile

VS

Radeon HD 8770M

Graphics Card

Apr 2018

Release Date

Apr 2013

Mobility Radeon

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1100 MHz

Base Clock

775 MHz

1176 MHz

Boost Clock

825 MHz

1500 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

48.00GB/s

Bandwidth

72.00GB/s

Render Config

10

Compute Units

6

-

640

Shading Units

384

40

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

18.82 GPixel/s

Pixel Rate

6.600 GPixel/s

47.04 GTexel/s

Texture Rate

19.80 GTexel/s

1.505 TFLOPS

FP16 (half)

-

1.505 TFLOPS

FP32 (float)

633.6 GFLOPS

94.08 GFLOPS

FP64 (double)

39.60 GFLOPS

Board Design

50W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 23

GPU Name

Mars

Polaris 23 MXT

GPU Variant

Mars S3 XT (216-0842018)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

0.95 billion

103 mm²

Die Size

77 mm²

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

-

6.4

Shader Model

6.5 (5.1)

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