AMD Radeon R9 255 OEM vs NVIDIA GeForce GTX 1080

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GTX 1080

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 8GB VRAM GeForce GTX 1080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Lower TDP (65W vs 180W)

NVIDIA GeForce GTX 1080 's Advantages

Released 2 years and 5 months late

Boost Clock has increased by 86% (1733MHz vs 930MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (320.3GB/s vs 73.60GB/s)

2048 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

GeForce GTX 1080 +832%

8.873 TFLOPS

Radeon R9 255 OEM

VS

GeForce GTX 1080

Graphics Card

Dec 2013

Release Date

May 2016

Volcanic Islands

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

1607 MHz

930 MHz

Boost Clock

1733 MHz

1150 MHz

Memory Clock

1251 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5X

128bit

Memory Bus

256bit

73.60GB/s

Bandwidth

320.3GB/s

Render Config

8

Compute Units

-

SM Count

20

512

Shading Units

2560

32

TMUs

160

16

ROPs

64

-

16 KB (per CU)

L1 Cache

48 KB (per SM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

110.9 GPixel/s

29.76 GTexel/s

Texture Rate

277.3 GTexel/s

-

FP16 (half)

138.6 GFLOPS

952.3 GFLOPS

FP32 (float)

8.873 TFLOPS

59.52 GFLOPS

FP64 (double)

277.3 GFLOPS

Board Design

65W

TDP

180W

250 W

Suggested PSU

450 W

No outputs

Outputs

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

1x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Cape Verde

GPU Name

GP104

Cape Verde PRX

GPU Variant

GP104-400-A1

GCN 1.0

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

1.5 billion

Transistors

7.2 billion

123 mm²

Die Size

314 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

6.1

5.1

Shader Model

6.4

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