NVIDIA GeForce GTX 480 vs ATI Radeon HD 2900 XT

VS

NVIDIA GeForce GTX 480

ATI Radeon HD 2900 XT

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 480 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 480 's Advantages

Released 2 years and 10 months late

More VRAM (1536GB vs 512GB)

Larger VRAM bandwidth (177.4GB/s vs 106.0GB/s)

160 additional rendering cores

ATI Radeon HD 2900 XT 's Advantages

Lower TDP (215W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 480 +182%

1.345 TFLOPS

Radeon HD 2900 XT

0.476 TFLOPS

GeForce GTX 480

VS

Radeon HD 2900 XT

Graphics Card

Mar 2010

Release Date

May 2007

GeForce 400

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

924 MHz

Memory Clock

828 MHz

Memory

1536MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

512bit

177.4GB/s

Bandwidth

106.0GB/s

Render Config

-

Compute Units

4

15

SM Count

-

480

Shading Units

320

60

TMUs

16

48

ROPs

16

-

64 KB (per SM)

L1 Cache

-

768 KB

L2 Cache

256 KB

-

Theoretical Performance

21.03 GPixel/s

Pixel Rate

11.89 GPixel/s

42.06 GTexel/s

Texture Rate

11.89 GTexel/s

-

1345 GFLOPS

FP32 (float)

475.5 GFLOPS

168.1 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

215W

600 W

Suggested PSU

550 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF100

GPU Name

R600

GF100-375-A3

GPU Variant

R600 XT (215RGMDKA13FG)

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

3.1 billion

Transistors

0.72 billion

529 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.0

CUDA

-

5.1

Shader Model

4.0

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