ATI Radeon HD 2900 XT vs NVIDIA GeForce GT 440

VS

ATI Radeon HD 2900 XT

NVIDIA GeForce GT 440

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 1024MB VRAM GeForce GT 440 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 28.80GB/s)

224 additional rendering cores

NVIDIA GeForce GT 440 's Advantages

Released 3 years and 9 months late

More VRAM (1024GB vs 512GB)

Lower TDP (65W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT +53%

0.476 TFLOPS

GeForce GT 440

0.311 TFLOPS

Radeon HD 2900 XT

VS

GeForce GT 440

Graphics Card

May 2007

Release Date

Feb 2011

Radeon R600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

28.80GB/s

Render Config

4

Compute Units

-

SM Count

2

320

Shading Units

96

16

TMUs

16

ROPs

4

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

3.240 GPixel/s

11.89 GTexel/s

Texture Rate

12.96 GTexel/s

-

475.5 GFLOPS

FP32 (float)

311.0 GFLOPS

-

FP64 (double)

25.92 GFLOPS

Board Design

215W

TDP

65W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

R600

GPU Name

GF108

R600 XT (215RGMDKA13FG)

GPU Variant

GF108-400-A1

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.72 billion

Transistors

0.585 billion

420 mm²

Die Size

116 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

2.1

4.0

Shader Model

5.1

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