AMD Radeon HD 8970M vs AMD Radeon 550X Mobile

VS

AMD Radeon HD 8970M

AMD Radeon 550X Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 4GB VRAM Radeon 550X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 48.00GB/s)

640 additional rendering cores

AMD Radeon 550X Mobile 's Advantages

Released 4 years and 11 months late

Boost Clock has increased by 43% (1287MHz vs 900MHz)

Lower TDP (50W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +39%

2.304 TFLOPS

Radeon 550X Mobile

1.647 TFLOPS

Radeon HD 8970M

VS

Radeon 550X Mobile

Graphics Card

May 2013

Release Date

Apr 2018

Solar System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

850 MHz

Base Clock

1100 MHz

900 MHz

Boost Clock

1287 MHz

1200 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

48.00GB/s

Render Config

20

Compute Units

10

-

1280

Shading Units

640

80

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

20.59 GPixel/s

72.00 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

2.304 TFLOPS

FP32 (float)

1.647 TFLOPS

144.0 GFLOPS

FP64 (double)

103.0 GFLOPS

Board Design

100W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Neptune

GPU Name

Polaris 23

Neptune XT (216-0847000)

GPU Variant

Polaris 23 MXT

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.8 billion

Transistors

2.2 billion

212 mm²

Die Size

103 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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