ATI Radeon HD 5870 vs ATI Radeon HD 4870 X2

VS

ATI Radeon HD 5870

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5870 and 1024MB VRAM Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5870 's Advantages

Released 1 years and 1 months late

Larger VRAM bandwidth (153.6GB/s vs 115.2GB/s)

800 additional rendering cores

Lower TDP (188W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 5870 +126%

2.72 TFLOPS

Radeon HD 4870 X2

1.2 TFLOPS

Radeon HD 5870

VS

Radeon HD 4870 X2

Graphics Card

Sep 2009

Release Date

Aug 2008

Evergreen

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

115.2GB/s

Render Config

20

Compute Units

10

-

1600

Shading Units

800

80

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

12.00 GPixel/s

68.00 GTexel/s

Texture Rate

30.00 GTexel/s

-

2.720 TFLOPS

FP32 (float)

1200 GFLOPS

544.0 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

188W

TDP

286W

450 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cypress

GPU Name

R700

Cypress XT (215-0735033)

GPU Variant

R700 XT (215-0669045)

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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