ATI Radeon HD 3830 vs AMD Radeon Sky 900

VS

ATI Radeon HD 3830

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3830 and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3830 's Advantages

Lower TDP (75W vs 300W)

AMD Radeon Sky 900 's Advantages

Released 4 years and 11 months late

Boost Clock950MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (240.0GB/s vs 26.50GB/s)

1472 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3830

0.428 TFLOPS

Radeon Sky 900 +695%

3.405 TFLOPS

Radeon HD 3830

VS

Radeon Sky 900

Graphics Card

Apr 2008

Release Date

Mar 2013

Radeon R600

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

828 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

26.50GB/s

Bandwidth

240.0GB/s

Render Config

4

Compute Units

28

-

320

Shading Units

1792

16

TMUs

112

16

ROPs

32

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

768 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

30.40 GPixel/s

10.69 GTexel/s

Texture Rate

106.4 GTexel/s

-

427.5 GFLOPS

FP32 (float)

3.405 TFLOPS

85.50 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

75W

TDP

300W

250 W

Suggested PSU

700 W

No outputs

Outputs

1x DVI 1x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

RV670

GPU Name

Tahiti

RV670 PRO (215-0708003)

GPU Variant

Orthrus

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

4.313 billion

192 mm²

Die Size

352 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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