AMD Radeon HD 7950 Mac Edition vs ATI Radeon HD 3550

VS

AMD Radeon HD 7950 Mac Edition

ATI Radeon HD 3550

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 512MB VRAM Radeon HD 3550 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

Released 4 years and 7 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 6.336GB/s)

1752 additional rendering cores

ATI Radeon HD 3550 's Advantages

Lower TDP (30W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition +5872%

2.867 TFLOPS

Radeon HD 3550

0.048 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon HD 3550

Graphics Card

Mar 2013

Release Date

Aug 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

396 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

6.336GB/s

Render Config

28

Compute Units

2

-

1792

Shading Units

40

112

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

64 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.376 GPixel/s

89.60 GTexel/s

Texture Rate

2.376 GTexel/s

-

2.867 TFLOPS

FP32 (float)

47.52 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

30W

550 W

Suggested PSU

200 W

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

Outputs

2x DisplayPort

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

RV620

Tahiti PRO (215-0821056)

GPU Variant

RV620 PRO (215-0670006)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.181 billion

352 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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