AMD Radeon Sky 900 vs NVIDIA GeForce GTX 285 Mac Edition

VS

AMD Radeon Sky 900

NVIDIA GeForce GTX 285 Mac Edition

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 1024MB VRAM GeForce GTX 285 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Released 4 years and 2 months late

Boost Clock950MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 159.0GB/s)

1552 additional rendering cores

NVIDIA GeForce GTX 285 Mac Edition 's Advantages

Lower TDP (204W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +380%

3.405 TFLOPS

GeForce GTX 285 Mac Edition

0.708 TFLOPS

Radeon Sky 900

VS

GeForce GTX 285 Mac Edition

Graphics Card

Mar 2013

Release Date

Jan 2009

Radeon Sky

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

825 MHz

Base Clock

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

1242 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

512bit

240.0GB/s

Bandwidth

159.0GB/s

Render Config

28

Compute Units

-

SM Count

30

1792

Shading Units

240

112

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

256 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

20.74 GPixel/s

106.4 GTexel/s

Texture Rate

51.84 GTexel/s

-

3.405 TFLOPS

FP32 (float)

708.5 GFLOPS

851.2 GFLOPS

FP64 (double)

88.56 GFLOPS

Board Design

300W

TDP

204W

700 W

Suggested PSU

550 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

GT200B

Orthrus

GPU Variant

G200-350-B3

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

1.4 billion

352 mm²

Die Size

470 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.3

5.1

Shader Model

4.0

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