AMD Radeon R9 270 1024SP vs AMD Radeon RX 550X

VS

AMD Radeon R9 270 1024SP

AMD Radeon RX 550X

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 1024SP and 4GB VRAM Radeon RX 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 1024SP 's Advantages

Larger VRAM bandwidth (153.6GB/s vs 96.00GB/s)

512 additional rendering cores

AMD Radeon RX 550X 's Advantages

Released 3 years and 9 months late

Boost Clock has increased by 28% (1183MHz vs 925MHz)

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 1024SP +56%

1.894 TFLOPS

Radeon RX 550X

1.211 TFLOPS

Radeon R9 270 1024SP

VS

Radeon RX 550X

Graphics Card

Mar 2015

Release Date

Dec 2018

Volcanic Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

1100 MHz

925 MHz

Boost Clock

1183 MHz

1200 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

96.00GB/s

Render Config

16

Compute Units

8

-

1024

Shading Units

512

64

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

18.93 GPixel/s

59.20 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

1.894 TFLOPS

FP32 (float)

1211 GFLOPS

118.4 GFLOPS

FP64 (double)

75.71 GFLOPS

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

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

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Lexa

Pitcairn PRO (215-0828062)

GPU Variant

Lexa PRO (215-0904018)

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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