AMD Radeon 550X vs AMD Radeon HD 6870 X2

VS

AMD Radeon 550X

AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages

Released 7 years and 8 months late

Boost Clock1218MHz

More VRAM (2GB vs 1024GB)

Lower TDP (50W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 112.0GB/s)

608 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X

1.247 TFLOPS

Radeon HD 6870 X2 +61%

2.016 TFLOPS

Radeon 550X

VS

Radeon HD 6870 X2

Graphics Card

Mar 2019

Release Date

Jul 2011

Polaris

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1750 MHz

Memory Clock

1050 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

112.0GB/s

Bandwidth

134.4GB/s

Render Config

8

Compute Units

14

-

512

Shading Units

1120

32

TMUs

56

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

28.80 GPixel/s

38.98 GTexel/s

Texture Rate

50.40 GTexel/s

1247 GFLOPS

FP16 (half)

-

1247 GFLOPS

FP32 (float)

2.016 TFLOPS

77.95 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

300W

250 W

Suggested PSU

700 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

-

Graphics Processor

Lexa

GPU Name

Barts

Lexa PRO (215-0904018)

GPU Variant

Barts XT (215-0798000)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

2.2 billion

Transistors

1.7 billion

103 mm²

Die Size

255 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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