AMD Radeon HD 8870 OEM vs AMD Radeon HD 7730

VS

AMD Radeon HD 8870 OEM

AMD Radeon HD 7730

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 8870 OEM and 1024MB VRAM Radeon HD 7730 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870 OEM 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 72.00GB/s)

896 additional rendering cores

AMD Radeon HD 7730 's Advantages

Lower TDP (47W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 8870 OEM +316%

2.56 TFLOPS

Radeon HD 7730

0.614 TFLOPS

Radeon HD 8870 OEM

VS

Radeon HD 7730

Graphics Card

Jan 2013

Release Date

May 2013

Sea Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

72.00GB/s

Render Config

20

Compute Units

6

-

1280

Shading Units

384

80

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

6.400 GPixel/s

80.00 GTexel/s

Texture Rate

19.20 GTexel/s

-

2.560 TFLOPS

FP32 (float)

614.4 GFLOPS

160.0 GFLOPS

FP64 (double)

38.40 GFLOPS

Board Design

175W

TDP

47W

450 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

Pitcairn

GPU Name

Cape Verde

Pitcairn XT (215-0828047)

GPU Variant

Cape Verde LE

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.5 billion

212 mm²

Die Size

123 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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