NVIDIA GeForce GTX 275 PhysX Edition vs ATI Radeon HD 2900 XTX

VS

NVIDIA GeForce GTX 275 PhysX Edition

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 512MB VRAM Radeon HD 2900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 PhysX Edition 's Advantages

More VRAM (896GB vs 512GB)

Larger VRAM bandwidth (127.0GB/s vs 106.0GB/s)

Lower TDP (219W vs 240W)

ATI Radeon HD 2900 XTX 's Advantages

80 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition +30%

0.622 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 2900 XTX

Graphics Card

Feb 2010

Release Date

Unknown

GeForce 200

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

828 MHz

Memory

896MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

448bit

Memory Bus

512bit

127.0GB/s

Bandwidth

106.0GB/s

Render Config

-

Compute Units

4

30

SM Count

-

240

Shading Units

320

80

TMUs

16

28

ROPs

16

-

224 KB

L2 Cache

256 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

11.89 GPixel/s

50.64 GTexel/s

Texture Rate

11.89 GTexel/s

-

622.1 GFLOPS

FP32 (float)

475.5 GFLOPS

77.76 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

240W

550 W

Suggested PSU

550 W

2x DVI

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

G92B

GPU Name

R600

G92-421-B1

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.754 billion

Transistors

0.72 billion

260 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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