AMD Radeon HD 8990 OEM vs AMD Radeon R9 380X

VS

AMD Radeon HD 8990 OEM AMD Radeon R9 380X

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 4GB VRAM Radeon R9 380X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8990 OEM 's Advantages

Boost Clock1000MHz

Larger VRAM bandwidth (288.0GB/s vs 182.4GB/s)

AMD Radeon R9 380X 's Advantages

Released 2 years and 7 months late

More VRAM (4GB vs 3GB)

Lower TDP (190W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM +3%

4.096 TFLOPS

Radeon R9 380X

3.973 TFLOPS

Radeon HD 8990 OEM

VS

Radeon R9 380X

Graphics Card

Apr 2013

Release Date

Nov 2015

Sea Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1425 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

182.4GB/s

Render Config

-

SM Count

-

32

Compute Units

32

2048

Shading Units

2048

128

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

31.04 GPixel/s

128.0 GTexel/s

Texture Rate

124.2 GTexel/s

-

FP16 (half)

3.973 TFLOPS

4.096 TFLOPS

FP32 (float)

3.973 TFLOPS

1024 GFLOPS

FP64 (double)

248.3 GFLOPS

Graphics Processor

Malta

GPU Name

Antigua

Malta XT (215-0849026)

GPU Variant

Antigua XT (215-0877016)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

5 billion

365 mm²

Die Size

366 mm²

Board Design

375W

TDP

190W

750 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.3

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