NVIDIA GeForce GTX 1080 vs ATI Radeon HD 4855

VS

NVIDIA GeForce GTX 1080 ATI Radeon HD 4855

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080's Advantages

Released 6 years and 4 months late

Boost Clock 1733MHz

Larger VRAM bandwidth (320.3GB/s vs 115.2GB/s)

1920 additional rendering cores

ATI Radeon HD 4855's Advantages

Lower TDP (110W vs 180W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 +1105%

8.873 TFLOPS

Radeon HD 4855

0.736 TFLOPS

GeForce GTX 1080

VS

Radeon HD 4855

Graphics Card

May 2016

Release Date

Jan 2010

GeForce 10

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1607MHz

Base Clock

-

1733MHz

Boost Clock

-

1251MHz

Memory Clock

900MHz

Memory

8GB

Memory Size

512MB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

256bit

320.3 GB/s

Bandwidth

115.2 GB/s

Render Config

20

SM Count

-

Compute Units

8

2560

Shading Units

640

160

TMUs

32

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

16 KB (per CU)

2MB

L2 Cache

256KB

Theoretical Performance

110.9 GPixel/s

Pixel Rate

9.200 GPixel/s

277.3 GTexel/s

Texture Rate

18.40 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

736.0 GFLOPS

277.3 GFLOPS

FP64 (double)

147.2 GFLOPS

Graphics Processor

GP104

GPU Name

RV770

GP104-400-A1

GPU Variant

RV770 PRO (215-0669065)

Pascal

Architecture

TeraScale

TSMC

Foundry

TSMC

16 nm

Process Size

55 nm

7,200 million

Transistors

956 million

314mm²

Die Size

256mm²

Board Design

180W

TDP

110W

450W

Suggested PSU

300W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (12_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

6.1

CUDA

-

6.4

Shader Model

4.1

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