NVIDIA GeForce GTX 260 vs ATI Radeon HD 2900 GT

VS

NVIDIA GeForce GTX 260

ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 260 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 260 's Advantages

Released 7 months late

More VRAM (896GB vs 256GB)

Larger VRAM bandwidth (111.9GB/s vs 51.20GB/s)

ATI Radeon HD 2900 GT 's Advantages

48 additional rendering cores

Lower TDP (150W vs 182W)

Score

Benchmark

FP32 (float)

GeForce GTX 260 +65%

0.477 TFLOPS

Radeon HD 2900 GT

0.288 TFLOPS

GeForce GTX 260

VS

Radeon HD 2900 GT

Graphics Card

Jun 2008

Release Date

Nov 2007

GeForce 200

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

999 MHz

Memory Clock

800 MHz

Memory

896MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

448bit

Memory Bus

256bit

111.9GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

3

24

SM Count

-

192

Shading Units

240

64

TMUs

12

28

ROPs

12

-

224 KB

L2 Cache

128 KB

-

Theoretical Performance

16.13 GPixel/s

Pixel Rate

7.212 GPixel/s

36.86 GTexel/s

Texture Rate

7.212 GTexel/s

-

476.9 GFLOPS

FP32 (float)

288.5 GFLOPS

59.62 GFLOPS

FP64 (double)

-

Board Design

182W

TDP

150W

450 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

GT200

GPU Name

R600

G200-100-A2

GPU Variant

R600 GT (215RGFDKA13FG)

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

80 nm

1.4 billion

Transistors

0.72 billion

576 mm²

Die Size

420 mm²

Graphics Features

11.1 (10_0)

DirectX

10.0 (10_0)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

4.0

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