AMD Radeon Sky 500 vs AMD Radeon HD 8490 OEM

VS

AMD Radeon Sky 500

AMD Radeon HD 8490 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon Sky 500 and 1024MB VRAM Radeon HD 8490 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 500 's Advantages

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)

1120 additional rendering cores

AMD Radeon HD 8490 OEM 's Advantages

Lower TDP (35W vs 150W)

Score

Benchmark

FP32 (float)

Radeon Sky 500 +768%

2.432 TFLOPS

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon Sky 500

VS

Radeon HD 8490 OEM

Graphics Card

Mar 2013

Release Date

Jul 2013

Radeon Sky

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

14.40GB/s

Render Config

20

Compute Units

2

-

1280

Shading Units

160

80

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

3.500 GPixel/s

76.00 GTexel/s

Texture Rate

7.000 GTexel/s

-

2.432 TFLOPS

FP32 (float)

280.0 GFLOPS

152.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

35W

450 W

Suggested PSU

200 W

1x DisplayPort 1.2

Outputs

1x DVI 1x DisplayPort 1.1

1x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Caicos

Pitcairn XT GL (215-0828073)

GPU Variant

Caicos XTX

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.37 billion

212 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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