AMD Radeon HD 8770 OEM vs AMD Radeon HD 6870

VS

AMD Radeon HD 8770 OEM

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8770 OEM and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770 OEM 's Advantages

Released 2 years and 11 months late

Lower TDP (85W vs 151W)

AMD Radeon HD 6870 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770 OEM

1.882 TFLOPS

Radeon HD 6870 +7%

2.016 TFLOPS

Radeon HD 8770 OEM

VS

Radeon HD 6870

Graphics Card

Sep 2013

Release Date

Oct 2010

Sea Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1050 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

134.4GB/s

Render Config

14

Compute Units

14

-

896

Shading Units

1120

56

TMUs

56

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

28.80 GPixel/s

58.80 GTexel/s

Texture Rate

50.40 GTexel/s

-

1.882 TFLOPS

FP32 (float)

2.016 TFLOPS

117.6 GFLOPS

FP64 (double)

-

Board Design

85W

TDP

151W

250 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Bonaire

GPU Name

Barts

Bonaire XT (215-0839039)

GPU Variant

Barts XT (215-0798000)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

1.7 billion

160 mm²

Die Size

255 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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