NVIDIA GeForce GTX 1080 11Gbps vs AMD Radeon HD 6870

VS

NVIDIA GeForce GTX 1080 11Gbps

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 11Gbps and 1024MB VRAM Radeon HD 6870 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 6 years and 6 months late

Boost Clock1733MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (352.3GB/s vs 134.4GB/s)

1440 additional rendering cores

AMD Radeon HD 6870 's Advantages

Lower TDP (151W vs 180W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 11Gbps +340%

8.873 TFLOPS

Radeon HD 6870

2.016 TFLOPS

GeForce GTX 1080 11Gbps

VS

Radeon HD 6870

Graphics Card

Apr 2017

Release Date

Oct 2010

GeForce 10

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1607 MHz

Base Clock

-

1733 MHz

Boost Clock

-

1376 MHz

Memory Clock

1050 MHz

Memory

8GB

Memory Size

1024MB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

256bit

352.3GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

20

SM Count

-

2560

Shading Units

1120

160

TMUs

56

64

ROPs

32

-

48 KB (per SM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

110.9 GPixel/s

Pixel Rate

28.80 GPixel/s

277.3 GTexel/s

Texture Rate

50.40 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

2.016 TFLOPS

277.3 GFLOPS

FP64 (double)

-

Board Design

180W

TDP

151W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GP104

GPU Name

Barts

GP104-410-A1

GPU Variant

Barts XT (215-0798000)

Pascal

Architecture

TeraScale 2

TSMC

Foundry

TSMC

16 nm

Process Size

40 nm

7.2 billion

Transistors

1.7 billion

314 mm²

Die Size

255 mm²

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

6.1

CUDA

-

6.4

Shader Model

5.0

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