ATI Radeon HD 2900 XT vs NVIDIA GeForce GTX 480

VS

ATI Radeon HD 2900 XT

NVIDIA GeForce GTX 480

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1536MB VRAM GeForce GTX 480 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Lower TDP (215W vs 250W)

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

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

GeForce GTX 480 +182%

1.345 TFLOPS

Radeon HD 2900 XT

VS

GeForce GTX 480

Graphics Card

May 2007

Release Date

Mar 2010

Radeon R600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

924 MHz

Memory

512MB

Memory Size

1536MB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

384bit

106.0GB/s

Bandwidth

177.4GB/s

Render Config

4

Compute Units

-

SM Count

15

320

Shading Units

480

16

TMUs

60

16

ROPs

48

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

21.03 GPixel/s

11.89 GTexel/s

Texture Rate

42.06 GTexel/s

-

475.5 GFLOPS

FP32 (float)

1345 GFLOPS

-

FP64 (double)

168.1 GFLOPS

Board Design

215W

TDP

250W

550 W

Suggested PSU

600 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

R600

GPU Name

GF100

R600 XT (215RGMDKA13FG)

GPU Variant

GF100-375-A3

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.72 billion

Transistors

3.1 billion

420 mm²

Die Size

529 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.0

4.0

Shader Model

5.1

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