GeForce GTS 450 vs Radeon HD 2900 XT

VS

NVIDIA GeForce GTS 450

ATI Radeon HD 2900 XT

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTS 450 and 512MB VRAM Radeon HD 2900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

GeForce GTS 450 Advantages

Released 3 years and 4 months late

More VRAM (1024GB vs 512GB)

Lower TDP (106W vs 215W)

Radeon HD 2900 XT Advantages

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

128 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTS 450 +26%

601

Radeon HD 2900 XT

476

GeForce GTS 450

VS

Radeon HD 2900 XT

Graphics Card

Sep 2010

Release Date

May 2007

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

215W

300 W

Suggested PSU

550 W

2x DVI
1x mini-HDMI 1.3a

Outputs

2x DVI
1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF106

GPU Name

R600

GF106-250-KA-A1

GPU Variant

R600 XT

(215RGMDKA13FG)

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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