AMD Radeon HD 8770 OEM vs AMD Radeon R9 280

VS

AMD Radeon HD 8770 OEM

AMD Radeon R9 280

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8770 OEM and 3GB VRAM Radeon R9 280 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770 OEM 's Advantages

Lower TDP (85W vs 200W)

AMD Radeon R9 280 's Advantages

Released 6 months late

Boost Clock933MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 96.00GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770 OEM

1.882 TFLOPS

Radeon R9 280 +77%

3.344 TFLOPS

Radeon HD 8770 OEM

VS

Radeon R9 280

Graphics Card

Sep 2013

Release Date

Mar 2014

Sea Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

827 MHz

-

Boost Clock

933 MHz

1500 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

96.00GB/s

Bandwidth

240.0GB/s

Render Config

14

Compute Units

28

-

896

Shading Units

1792

56

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

29.86 GPixel/s

58.80 GTexel/s

Texture Rate

104.5 GTexel/s

-

1.882 TFLOPS

FP32 (float)

3.344 TFLOPS

117.6 GFLOPS

FP64 (double)

836.0 GFLOPS

Board Design

85W

TDP

200W

250 W

Suggested PSU

550 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Bonaire

GPU Name

Tahiti

Bonaire XT (215-0839039)

GPU Variant

Tahiti PRO3 (215-0821330)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

4.313 billion

160 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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