AMD Radeon HD 7850M vs AMD Radeon 550X Mobile

VS

AMD Radeon HD 7850M

AMD Radeon 550X Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7850M 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 7850M 's Advantages

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

Lower TDP (40W vs 50W)

AMD Radeon 550X Mobile 's Advantages

Released 6 years late

Boost Clock1287MHz

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon HD 7850M

0.864 TFLOPS

Radeon 550X Mobile +90%

1.647 TFLOPS

Radeon HD 7850M

VS

Radeon 550X Mobile

Graphics Card

Apr 2012

Release Date

Apr 2018

London

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1287 MHz

1000 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

48.00GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

20.59 GPixel/s

27.00 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

864.0 GFLOPS

FP32 (float)

1.647 TFLOPS

54.00 GFLOPS

FP64 (double)

103.0 GFLOPS

Board Design

40W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Heathrow

GPU Name

Polaris 23

Heathrow PRO

GPU Variant

Polaris 23 MXT

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

2.2 billion

123 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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