AMD Radeon HD 7970 vs AMD Radeon RX 550 512SP

VS

AMD Radeon HD 7970

AMD Radeon RX 550 512SP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 2GB VRAM Radeon RX 550 512SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

More VRAM (3GB vs 2GB)

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

1536 additional rendering cores

AMD Radeon RX 550 512SP 's Advantages

Released 5 years and 10 months late

Boost Clock1071MHz

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +245%

3.789 TFLOPS

Radeon RX 550 512SP

1.097 TFLOPS

Radeon HD 7970

VS

Radeon RX 550 512SP

Graphics Card

Dec 2011

Release Date

Oct 2017

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

1375 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

96.00GB/s

Render Config

32

Compute Units

8

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

17.14 GPixel/s

118.4 GTexel/s

Texture Rate

34.27 GTexel/s

-

FP16 (half)

1097 GFLOPS

3.789 TFLOPS

FP32 (float)

1097 GFLOPS

947.2 GFLOPS

FP64 (double)

68.54 GFLOPS

Board Design

250W

TDP

50W

600 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Baffin

Tahiti XT (215-0821060)

GPU Variant

Baffin LE

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

3 billion

352 mm²

Die Size

123 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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