NVIDIA GeForce GTX 1080 vs AMD Radeon HD 8990 OEM

VS

NVIDIA GeForce GTX 1080 AMD Radeon HD 8990 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 's Advantages

Released 3 years and 1 months late

Boost Clock has increased by 73% (1733MHz vs 1000MHz)

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (320.3GB/s vs 288.0GB/s)

512 additional rendering cores

Lower TDP (180W vs 375W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 +116%

8.873 TFLOPS

Radeon HD 8990 OEM

4.096 TFLOPS

GeForce GTX 1080

VS

Radeon HD 8990 OEM

Graphics Card

May 2016

Release Date

Apr 2013

GeForce 10

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1607 MHz

Base Clock

950 MHz

1733 MHz

Boost Clock

1000 MHz

1251 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

3GB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

384bit

320.3GB/s

Bandwidth

288.0GB/s

Render Config

20

SM Count

-

Compute Units

32

2560

Shading Units

2048

160

TMUs

128

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

Theoretical Performance

110.9 GPixel/s

Pixel Rate

32.00 GPixel/s

277.3 GTexel/s

Texture Rate

128.0 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

4.096 TFLOPS

277.3 GFLOPS

FP64 (double)

1024 GFLOPS

Graphics Processor

GP104

GPU Name

Malta

GP104-400-A1

GPU Variant

Malta XT (215-0849026)

Pascal

Architecture

GCN 1.0

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

4.313 billion

314 mm²

Die Size

365 mm²

Board Design

180W

TDP

375W

450 W

Suggested PSU

750 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 8-pin

Power Connectors

2x 8-pin

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

6.1

CUDA

-

6.4

Shader Model

5.1

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