ATI Radeon HD 5830 vs ATI Radeon HD 4870

VS

ATI Radeon HD 5830

ATI Radeon HD 4870

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5830 and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5830 's Advantages

Released 1 years and 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 115.2GB/s)

320 additional rendering cores

ATI Radeon HD 4870 's Advantages

Lower TDP (150W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 5830 +49%

1.792 TFLOPS

Radeon HD 4870

1.2 TFLOPS

Radeon HD 5830

VS

Radeon HD 4870

Graphics Card

Feb 2010

Release Date

Jun 2008

Evergreen

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

115.2GB/s

Render Config

14

Compute Units

10

-

1120

Shading Units

800

56

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

12.00 GPixel/s

44.80 GTexel/s

Texture Rate

30.00 GTexel/s

-

1.792 TFLOPS

FP32 (float)

1200 GFLOPS

358.4 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

175W

TDP

150W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Cypress

GPU Name

RV770

Cypress LE (215-0735047)

GPU Variant

RV770 XT (215-0669049)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.154 billion

Transistors

0.956 billion

334 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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