NVIDIA GeForce GTS 450 vs ATI Radeon HD 2900 XTX

VS

NVIDIA GeForce GTS 450

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTS 450 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 GTS 450 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (106W vs 240W)

ATI Radeon HD 2900 XTX 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 57.73GB/s)

128 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTS 450 +26%

0.601 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

GeForce GTS 450

VS

Radeon HD 2900 XTX

Graphics Card

Sep 2010

Release Date

Unknown

GeForce 400

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

902 MHz

Memory Clock

828 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

512bit

57.73GB/s

Bandwidth

106.0GB/s

Render Config

-

Compute Units

4

SM Count

-

192

Shading Units

320

32

TMUs

16

ROPs

16

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.264 GPixel/s

Pixel Rate

11.89 GPixel/s

25.06 GTexel/s

Texture Rate

11.89 GTexel/s

-

601.3 GFLOPS

FP32 (float)

475.5 GFLOPS

50.11 GFLOPS

FP64 (double)

-

Board Design

106W

TDP

240W

300 W

Suggested PSU

550 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GF106

GPU Name

R600

GF106-250-KA-A1

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.17 billion

Transistors

0.72 billion

238 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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