AMD Radeon HD 7950 Mac Edition vs AMD Radeon 550

VS

AMD Radeon HD 7950 Mac Edition

AMD Radeon 550

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 2GB VRAM Radeon 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Mac Edition 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 56.00GB/s)

1280 additional rendering cores

AMD Radeon 550 's Advantages

Released 4 years and 1 months late

Boost Clock1183MHz

Lower TDP (50W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition +136%

2.867 TFLOPS

Radeon 550

1.211 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon 550

Graphics Card

Mar 2013

Release Date

Apr 2017

Southern Islands

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1183 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

56.00GB/s

Render Config

28

Compute Units

8

-

1792

Shading Units

512

112

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

18.93 GPixel/s

89.60 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

2.867 TFLOPS

FP32 (float)

1211 GFLOPS

716.8 GFLOPS

FP64 (double)

75.71 GFLOPS

Board Design

200W

TDP

50W

550 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

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Lexa

Tahiti PRO (215-0821056)

GPU Variant

Lexa PRO (215-0904018)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

4.313 billion

Transistors

2.2 billion

352 mm²

Die Size

103 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.7

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