AMD Radeon R9 Nano vs AMD Radeon HD 8990 OEM

VS

AMD Radeon R9 Nano

AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 Nano 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 R9 Nano 's Advantages

Released 2 years and 4 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (512.0GB/s vs 288.0GB/s)

2048 additional rendering cores

Lower TDP (175W vs 375W)

AMD Radeon HD 8990 OEM 's Advantages

Boost Clock1000MHz

Score

Benchmark

FP32 (float)

Radeon R9 Nano +100%

8.192 TFLOPS

Radeon HD 8990 OEM

4.096 TFLOPS

Radeon R9 Nano

VS

Radeon HD 8990 OEM

Graphics Card

Aug 2015

Release Date

Apr 2013

Pirate 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

500 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

3GB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

384bit

512.0GB/s

Bandwidth

288.0GB/s

Render Config

64

Compute Units

32

-

4096

Shading Units

2048

256

TMUs

128

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

32.00 GPixel/s

256.0 GTexel/s

Texture Rate

128.0 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

4.096 TFLOPS

512.0 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

175W

TDP

375W

450 W

Suggested PSU

750 W

1x HDMI 1.4a 3x DisplayPort 1.2

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Fiji

GPU Name

Malta

Fiji XT CA (215-0862120)

GPU Variant

Malta XT (215-0849026)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8.9 billion

Transistors

4.313 billion

596 mm²

Die Size

365 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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