GeForce GTS 450 vs Radeon Sky 900

VS

NVIDIA GeForce GTS 450

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTS 450 and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

GeForce GTS 450 Advantages

Lower TDP (106W vs 300W)

Radeon Sky 900 Advantages

Released 2 years and 6 months late

Boost Clock950MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 57.73GB/s)

1600 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTS 450

601

Radeon Sky 900 +466%

3405

GeForce GTS 450

VS

Radeon Sky 900

Graphics Card

Sep 2010

Release Date

Mar 2013

GeForce 400

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

825 MHz

-

Boost Clock

950 MHz

902 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

57.73GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

4

SM Count

-

192

Shading Units

1792

32

TMUs

112

16

ROPs

32

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

Theoretical Performance

6.264 GPixel/s

Pixel Rate

30.40 GPixel/s

25.06 GTexel/s

Texture Rate

106.4 GTexel/s

601.3 GFLOPS

FP32 (float)

3.405 TFLOPS

50.11 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

106W

TDP

300W

300 W

Suggested PSU

700 W

2x DVI
1x mini-HDMI 1.3a

Outputs

1x DVI
1x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GF106

GPU Name

Tahiti

GF106-250-KA-A1

GPU Variant

Orthrus

Fermi

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.17 billion

Transistors

4.313 billion

238 mm²

Die Size

352 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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