AMD Radeon HD 6970 X2 vs AMD Radeon RX 550X

VS

AMD Radeon HD 6970 X2

AMD Radeon RX 550X

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 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 HD 6970 X2 's Advantages

Larger VRAM bandwidth (176.0GB/s vs 96.00GB/s)

1024 additional rendering cores

AMD Radeon RX 550X 's Advantages

Boost Clock1183MHz

More VRAM (4GB vs 2GB)

Lower TDP (50W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +123%

2.703 TFLOPS

Radeon RX 550X

1.211 TFLOPS

Radeon HD 6970 X2

VS

Radeon RX 550X

Graphics Card

Unknown

Release Date

Dec 2018

Northern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1183 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

176.0GB/s

Bandwidth

96.00GB/s

Render Config

24

Compute Units

8

-

1536

Shading Units

512

96

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

18.93 GPixel/s

84.48 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

2.703 TFLOPS

FP32 (float)

1211 GFLOPS

-

FP64 (double)

75.71 GFLOPS

Board Design

375W

TDP

50W

750 W

Suggested PSU

250 W

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

Outputs

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

3x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

Lexa

Antilles XT (215-0807027)

GPU Variant

Lexa PRO (215-0904018)

TeraScale 3

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

2.64 billion

Transistors

2.2 billion

389 mm²

Die Size

103 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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