AMD Radeon Sky 900 vs ATI Radeon X800 GTO

VS

AMD Radeon Sky 900

ATI Radeon X800 GTO

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 128MB VRAM Radeon X800 GTO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Released 5 years and 3 months late

Boost Clock950MHz

More VRAM (3GB vs 128GB)

Larger VRAM bandwidth (240.0GB/s vs 22.40GB/s)

1792 additional rendering cores

ATI Radeon X800 GTO 's Advantages

Lower TDP (49W vs 300W)

Score

Radeon Sky 900

VS

Radeon X800 GTO

Graphics Card

Mar 2013

Release Date

Dec 2007

Radeon Sky

Generation

Radeon R400 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

825 MHz

Base Clock

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

350 MHz

Memory

3GB

Memory Size

128MB

GDDR5

Memory Type

DDR

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

22.40GB/s

Render Config

28

Compute Units

-

1792

Shading Units

-

112

TMUs

12

32

ROPs

12

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

4.800 GPixel/s

106.4 GTexel/s

Texture Rate

4.800 GTexel/s

-

3.405 TFLOPS

FP32 (float)

-

851.2 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

49W

700 W

Suggested PSU

200 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

R423

Orthrus

GPU Variant

R423 GTO

GCN 1.0

Architecture

R400

TSMC

Foundry

TSMC

28 nm

Process Size

130 nm

4.313 billion

Transistors

0.16 billion

352 mm²

Die Size

289 mm²

Graphics Features

12 (11_1)

DirectX

9.0b (9_2)

4.6

OpenGL

2.1

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

-

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