NVIDIA GeForce GTX 1080 11Gbps vs AMD Radeon HD 8870 OEM

VS

NVIDIA GeForce GTX 1080 11Gbps

AMD Radeon HD 8870 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 11Gbps and 2GB VRAM Radeon HD 8870 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 11Gbps 's Advantages

Released 4 years and 3 months late

Boost Clock1733MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (352.3GB/s vs 153.6GB/s)

1280 additional rendering cores

AMD Radeon HD 8870 OEM 's Advantages

Lower TDP (175W vs 180W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 11Gbps +246%

8.873 TFLOPS

Radeon HD 8870 OEM

2.56 TFLOPS

GeForce GTX 1080 11Gbps

VS

Radeon HD 8870 OEM

Graphics Card

Apr 2017

Release Date

Jan 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

-

1733 MHz

Boost Clock

-

1376 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

2GB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

256bit

352.3GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

SM Count

-

2560

Shading Units

1280

160

TMUs

80

64

ROPs

32

-

48 KB (per SM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

110.9 GPixel/s

Pixel Rate

32.00 GPixel/s

277.3 GTexel/s

Texture Rate

80.00 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

2.560 TFLOPS

277.3 GFLOPS

FP64 (double)

160.0 GFLOPS

Board Design

180W

TDP

175W

450 W

Suggested PSU

450 W

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

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GP104

GPU Name

Pitcairn

GP104-410-A1

GPU Variant

Pitcairn XT (215-0828047)

Pascal

Architecture

GCN 1.0

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

2.8 billion

314 mm²

Die Size

212 mm²

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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