NVIDIA GeForce GTX 1080 vs ATI Radeon HD 2900 XT

VS

NVIDIA GeForce GTX 1080 ATI Radeon HD 2900 XT

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 and 512MB VRAM Radeon HD 2900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 's Advantages

Released 9 years late

Boost Clock1733MHz

Larger VRAM bandwidth (320.3GB/s vs 106.0GB/s)

2240 additional rendering cores

Lower TDP (180W vs 215W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 +1764%

8.873 TFLOPS

Radeon HD 2900 XT

0.476 TFLOPS

GeForce GTX 1080

VS

Radeon HD 2900 XT

Graphics Card

May 2016

Release Date

May 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

828 MHz

Memory

8GB

Memory Size

512MB

GDDR5X

Memory Type

GDDR3

256bit

Memory Bus

512bit

320.3GB/s

Bandwidth

106.0GB/s

Render Config

20

SM Count

-

Compute Units

4

2560

Shading Units

320

160

TMUs

16

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

-

2 MB

L2 Cache

256 KB

Theoretical Performance

110.9 GPixel/s

Pixel Rate

11.89 GPixel/s

277.3 GTexel/s

Texture Rate

11.89 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

475.5 GFLOPS

277.3 GFLOPS

FP64 (double)

-

Graphics Processor

GP104

GPU Name

R600

GP104-400-A1

GPU Variant

R600 XT (215RGMDKA13FG)

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

Board Design

180W

TDP

215W

450 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

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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