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

VS

AMD Radeon R9 290X

AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X and 3GB VRAM Radeon HD 7950 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

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

AMD Radeon HD 7950 Mac Edition 's Advantages

Lower TDP (200W vs 290W)

Score

Benchmark

FP32 (float)

Radeon R9 290X +96%

5.632 TFLOPS

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon R9 290X

VS

Radeon HD 7950 Mac Edition

Graphics Card

Oct 2013

Release Date

Mar 2013

Volcanic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

384bit

320.0GB/s

Bandwidth

240.0GB/s

Render Config

44

Compute Units

28

-

2816

Shading Units

1792

176

TMUs

112

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

768 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

25.60 GPixel/s

176.0 GTexel/s

Texture Rate

89.60 GTexel/s

-

5.632 TFLOPS

FP32 (float)

2.867 TFLOPS

704.0 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

290W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Hawaii

GPU Name

Tahiti

Hawaii XT (215-0852000)

GPU Variant

Tahiti PRO (215-0821056)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

4.313 billion

438 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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