AMD Radeon HD 8740 OEM vs AMD Radeon Sky 900

VS

AMD Radeon HD 8740 OEM

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8740 OEM and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8740 OEM 's Advantages

Released 6 months late

Lower TDP (55W vs 300W)

AMD Radeon Sky 900 's Advantages

Boost Clock950MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 72.00GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8740 OEM

0.819 TFLOPS

Radeon Sky 900 +315%

3.405 TFLOPS

Radeon HD 8740 OEM

VS

Radeon Sky 900

Graphics Card

Sep 2013

Release Date

Mar 2013

Sea Islands

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

825 MHz

-

Boost Clock

950 MHz

1125 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

72.00GB/s

Bandwidth

240.0GB/s

Render Config

8

Compute Units

28

-

512

Shading Units

1792

32

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

30.40 GPixel/s

25.60 GTexel/s

Texture Rate

106.4 GTexel/s

-

819.2 GFLOPS

FP32 (float)

3.405 TFLOPS

51.20 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

55W

TDP

300W

250 W

Suggested PSU

700 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

Cape Verde

GPU Name

Tahiti

Cape Verde PRO

GPU Variant

Orthrus

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

4.313 billion

123 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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