AMD Radeon HD 8770 OEM vs ATI Radeon HD 4830

VS

AMD Radeon HD 8770 OEM

ATI Radeon HD 4830

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8770 OEM and 512MB VRAM Radeon HD 4830 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 4 years and 11 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 57.60GB/s)

256 additional rendering cores

Lower TDP (85W vs 95W)

Score

Benchmark

FP32 (float)

Radeon HD 8770 OEM +155%

1.882 TFLOPS

Radeon HD 4830

0.736 TFLOPS

Radeon HD 8770 OEM

VS

Radeon HD 4830

Graphics Card

Sep 2013

Release Date

Oct 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

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

96.00GB/s

Bandwidth

57.60GB/s

Render Config

14

Compute Units

8

-

896

Shading Units

640

56

TMUs

32

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

9.200 GPixel/s

58.80 GTexel/s

Texture Rate

18.40 GTexel/s

-

1.882 TFLOPS

FP32 (float)

736.0 GFLOPS

117.6 GFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

85W

TDP

95W

250 W

Suggested PSU

250 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

Graphics Processor

Bonaire

GPU Name

RV770

Bonaire XT (215-0839039)

GPU Variant

RV770 LE (215-0669075)

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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