NVIDIA GeForce GTX 260 Rev. 2 vs ATI Radeon HD 2900 GT

VS

NVIDIA GeForce GTX 260 Rev. 2

ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 260 Rev. 2 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 Rev. 2 's Advantages

Released 8 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 Rev. 2 +65%

0.477 TFLOPS

Radeon HD 2900 GT

0.288 TFLOPS

GeForce GTX 260 Rev. 2

VS

Radeon HD 2900 GT

Graphics Card

Jul 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

GT200B

GPU Name

R600

G200-103-B3

GPU Variant

R600 GT (215RGFDKA13FG)

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

1.4 billion

Transistors

0.72 billion

470 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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