NVIDIA GeForce GTX 1080 vs ATI Radeon HD 2900 GT

VS

NVIDIA GeForce GTX 1080

ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 's Advantages

Released 8 years and 6 months late

Boost Clock1733MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (320.3GB/s vs 51.20GB/s)

2320 additional rendering cores

ATI Radeon HD 2900 GT 's Advantages

Lower TDP (150W vs 180W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 +2980%

8.873 TFLOPS

Radeon HD 2900 GT

0.288 TFLOPS

GeForce GTX 1080

VS

Radeon HD 2900 GT

Graphics Card

May 2016

Release Date

Nov 2007

GeForce 10

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1607 MHz

Base Clock

-

1733 MHz

Boost Clock

-

1251 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

256MB

GDDR5X

Memory Type

GDDR3

256bit

Memory Bus

256bit

320.3GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

3

20

SM Count

-

2560

Shading Units

240

160

TMUs

12

64

ROPs

12

-

48 KB (per SM)

L1 Cache

-

2 MB

L2 Cache

128 KB

-

Theoretical Performance

110.9 GPixel/s

Pixel Rate

7.212 GPixel/s

277.3 GTexel/s

Texture Rate

7.212 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

288.5 GFLOPS

277.3 GFLOPS

FP64 (double)

-

Board Design

180W

TDP

150W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

GP104

GPU Name

R600

GP104-400-A1

GPU Variant

R600 GT (215RGFDKA13FG)

Pascal

Architecture

TeraScale

TSMC

Foundry

TSMC

16 nm

Process Size

80 nm

7.2 billion

Transistors

0.72 billion

314 mm²

Die Size

420 mm²

Graphics Features

12 (12_1)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

6.1

CUDA

-

6.4

Shader Model

4.0

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