AMD Radeon RX 550X vs AMD Radeon HD 7970 X2

VS

AMD Radeon RX 550X

AMD Radeon HD 7970 X2

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 3GB VRAM Radeon HD 7970 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 's Advantages

Released 6 years and 4 months late

Boost Clock1183MHz

More VRAM (4GB vs 3GB)

Lower TDP (50W vs 500W)

AMD Radeon HD 7970 X2 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 96.00GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550X

1.211 TFLOPS

Radeon HD 7970 X2 +212%

3.789 TFLOPS

Radeon RX 550X

VS

Radeon HD 7970 X2

Graphics Card

Dec 2018

Release Date

Aug 2012

Polaris

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1100 MHz

Base Clock

-

1183 MHz

Boost Clock

-

1500 MHz

Memory Clock

1375 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

96.00GB/s

Bandwidth

264.0GB/s

Render Config

8

Compute Units

32

-

512

Shading Units

2048

32

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

18.93 GPixel/s

Pixel Rate

29.60 GPixel/s

37.86 GTexel/s

Texture Rate

118.4 GTexel/s

1211 GFLOPS

FP16 (half)

-

1211 GFLOPS

FP32 (float)

3.789 TFLOPS

75.71 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

50W

TDP

500W

250 W

Suggested PSU

900 W

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

Outputs

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

None

Power Connectors

3x 8-pin

Graphics Processor

Lexa

GPU Name

New Zealand

Lexa PRO (215-0904018)

GPU Variant

-

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

4.313 billion

103 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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