AMD Radeon HD 7950 Mac Edition vs AMD Radeon HD 8990 OEM

VS

AMD Radeon HD 7950 Mac Edition AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 3GB VRAM Radeon HD 8990 OEM 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 375W)

AMD Radeon HD 8990 OEM 's Advantages

Boost Clock1000MHz

Larger VRAM bandwidth (288.0GB/s vs 240.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon HD 8990 OEM +42%

4.096 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon HD 8990 OEM

Graphics Card

Mar 2013

Release Date

Apr 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

28

Compute Units

32

1792

Shading Units

2048

112

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

32.00 GPixel/s

89.60 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP16 (half)

-

2.867 TFLOPS

FP32 (float)

4.096 TFLOPS

716.8 GFLOPS

FP64 (double)

1024 GFLOPS

Graphics Processor

Tahiti

GPU Name

Malta

Tahiti PRO (215-0821056)

GPU Variant

Malta XT (215-0849026)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

4.313 billion

352 mm²

Die Size

365 mm²

Board Design

200W

TDP

375W

550 W

Suggested PSU

750 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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