AMD Radeon RX 550 512SP vs AMD Radeon HD 7970

VS

AMD Radeon RX 550 512SP AMD Radeon HD 7970

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

Main Differences

AMD Radeon RX 550 512SP 's Advantages

Released 5 years and 10 months late

Boost Clock1071MHz

Lower TDP (50W vs 250W)

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

Score

Benchmark

FP32 (float)

Radeon RX 550 512SP

1.097 TFLOPS

Radeon HD 7970 +245%

3.789 TFLOPS

Radeon RX 550 512SP

VS

Radeon HD 7970

Graphics Card

Oct 2017

Release Date

Dec 2011

Polaris

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

96.00GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

8

Compute Units

32

512

Shading Units

2048

32

TMUs

128

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

29.60 GPixel/s

34.27 GTexel/s

Texture Rate

118.4 GTexel/s

1097 GFLOPS

FP16 (half)

-

1097 GFLOPS

FP32 (float)

3.789 TFLOPS

68.54 GFLOPS

FP64 (double)

947.2 GFLOPS

Graphics Processor

Baffin

GPU Name

Tahiti

Baffin LE

GPU Variant

Tahiti XT (215-0821060)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

4.313 billion

123 mm²

Die Size

352 mm²

Board Design

50W

TDP

250W

250 W

Suggested PSU

600 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 Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

5.1

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