ATI Radeon HD 5770 vs ATI Radeon HD 4870

VS

ATI Radeon HD 5770

ATI Radeon HD 4870

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5770 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 5770 's Advantages

Released 1 years and 4 months late

More VRAM (1024GB vs 512GB)

Lower TDP (108W vs 150W)

ATI Radeon HD 4870 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 76.80GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 5770 +13%

1.36 TFLOPS

Radeon HD 4870

1.2 TFLOPS

Radeon HD 5770

VS

Radeon HD 4870

Graphics Card

Oct 2009

Release Date

Jun 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

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

76.80GB/s

Bandwidth

115.2GB/s

Render Config

10

Compute Units

10

-

800

Shading Units

800

40

TMUs

40

16

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

12.00 GPixel/s

34.00 GTexel/s

Texture Rate

30.00 GTexel/s

-

1360 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

108W

TDP

150W

300 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Juniper

GPU Name

RV770

Juniper XT (215-0754013)

GPU Variant

RV770 XT (215-0669049)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.956 billion

166 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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