AMD Radeon HD 7950 Mac Edition vs AMD Radeon R9 290X

VS

AMD Radeon HD 7950 Mac Edition

AMD Radeon R9 290X

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 4GB VRAM Radeon R9 290X 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

Lower TDP (200W vs 290W)

AMD Radeon R9 290X 's Advantages

Released 7 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (320.0GB/s vs 240.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon R9 290X +96%

5.632 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon R9 290X

Graphics Card

Mar 2013

Release Date

Oct 2013

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1250 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

512bit

240.0GB/s

Bandwidth

320.0GB/s

Render Config

28

Compute Units

44

-

1792

Shading Units

2816

112

TMUs

176

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

64.00 GPixel/s

89.60 GTexel/s

Texture Rate

176.0 GTexel/s

-

2.867 TFLOPS

FP32 (float)

5.632 TFLOPS

716.8 GFLOPS

FP64 (double)

704.0 GFLOPS

Board Design

200W

TDP

290W

550 W

Suggested PSU

600 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

Hawaii

Tahiti PRO (215-0821056)

GPU Variant

Hawaii XT (215-0852000)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

6.2 billion

352 mm²

Die Size

438 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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