AMD Radeon HD 8770 OEM vs ATI Radeon HD 4870 X2

VS

AMD Radeon HD 8770 OEM

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8770 OEM and 1024MB VRAM Radeon HD 4870 X2 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 5 years and 1 months late

96 additional rendering cores

Lower TDP (85W vs 286W)

ATI Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 96.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8770 OEM +56%

1.882 TFLOPS

Radeon HD 4870 X2

1.2 TFLOPS

Radeon HD 8770 OEM

VS

Radeon HD 4870 X2

Graphics Card

Sep 2013

Release Date

Aug 2008

Sea Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

115.2GB/s

Render Config

14

Compute Units

10

-

896

Shading Units

800

56

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

12.00 GPixel/s

58.80 GTexel/s

Texture Rate

30.00 GTexel/s

-

1.882 TFLOPS

FP32 (float)

1200 GFLOPS

117.6 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

85W

TDP

286W

250 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Bonaire

GPU Name

R700

Bonaire XT (215-0839039)

GPU Variant

R700 XT (215-0669045)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.956 billion

160 mm²

Die Size

256 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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