AMD Radeon Sky 700 vs AMD Radeon HD 6450

VS

AMD Radeon Sky 700

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 6GB VRAM Radeon Sky 700 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 700 's Advantages

Released 1 years and 11 months late

More VRAM (6GB vs 512GB)

Larger VRAM bandwidth (264.0GB/s vs 25.60GB/s)

1632 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 225W)

Score

Benchmark

FP32 (float)

Radeon Sky 700 +1513%

3.226 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon Sky 700

VS

Radeon HD 6450

Graphics Card

Mar 2013

Release Date

Apr 2011

Radeon Sky

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

800 MHz

Memory

6GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

25.60GB/s

Render Config

28

Compute Units

2

-

1792

Shading Units

160

112

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.500 GPixel/s

100.8 GTexel/s

Texture Rate

5.000 GTexel/s

-

3.226 TFLOPS

FP32 (float)

200.0 GFLOPS

806.4 GFLOPS

FP64 (double)

-

Board Design

225W

TDP

18W

550 W

Suggested PSU

200 W

1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

Caicos

Tahiti PRO GL

GPU Variant

Caicos PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.37 billion

352 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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