AMD Radeon 550X vs AMD Radeon HD 7970 GHz Edition

VS

AMD Radeon 550X

AMD Radeon HD 7970 GHz Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 3GB VRAM Radeon HD 7970 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages

Released 6 years and 9 months late

Boost Clock has increased by 16% (1218MHz vs 1050MHz)

Lower TDP (50W vs 300W)

AMD Radeon HD 7970 GHz Edition 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 112.0GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X

1.247 TFLOPS

Radeon HD 7970 GHz Edition +244%

4.301 TFLOPS

Radeon 550X

VS

Radeon HD 7970 GHz Edition

Graphics Card

Mar 2019

Release Date

Jun 2012

Polaris

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1082 MHz

Base Clock

1000 MHz

1218 MHz

Boost Clock

1050 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

112.0GB/s

Bandwidth

288.0GB/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

19.49 GPixel/s

Pixel Rate

33.60 GPixel/s

38.98 GTexel/s

Texture Rate

134.4 GTexel/s

1247 GFLOPS

FP16 (half)

-

1247 GFLOPS

FP32 (float)

4.301 TFLOPS

77.95 GFLOPS

FP64 (double)

1075 GFLOPS

Board Design

50W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Lexa

GPU Name

Tahiti

Lexa PRO (215-0904018)

GPU Variant

Tahiti XT2 (215-0821065)

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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