ATI Radeon HD 2900 XTX vs NVIDIA GeForce GTS 450

VS

ATI Radeon HD 2900 XTX

NVIDIA GeForce GTS 450

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

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

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

128 additional rendering cores

NVIDIA GeForce GTS 450 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (106W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

GeForce GTS 450 +26%

0.601 TFLOPS

Radeon HD 2900 XTX

VS

GeForce GTS 450

Graphics Card

Unknown

Release Date

Sep 2010

Radeon R600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

902 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

57.73GB/s

Render Config

4

Compute Units

-

SM Count

4

320

Shading Units

192

16

TMUs

32

16

ROPs

16

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

6.264 GPixel/s

11.89 GTexel/s

Texture Rate

25.06 GTexel/s

-

475.5 GFLOPS

FP32 (float)

601.3 GFLOPS

-

FP64 (double)

50.11 GFLOPS

Board Design

240W

TDP

106W

550 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

R600

GPU Name

GF106

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

GF106-250-KA-A1

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.72 billion

Transistors

1.17 billion

420 mm²

Die Size

238 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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