ATI Radeon HD 5770 X2 vs ATI Radeon HD 3870 X2

VS

ATI Radeon HD 5770 X2

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5770 X2 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5770 X2 's Advantages

Released 2 years and 9 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (76.80GB/s vs 57.66GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5770 X2 +157%

1.36 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

Radeon HD 5770 X2

VS

Radeon HD 3870 X2

Graphics Card

Oct 2010

Release Date

Jan 2008

Evergreen

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

901 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

76.80GB/s

Bandwidth

57.66GB/s

Render Config

10

Compute Units

4

-

800

Shading Units

320

40

TMUs

16

ROPs

16

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

13.20 GPixel/s

34.00 GTexel/s

Texture Rate

13.20 GTexel/s

-

1360 GFLOPS

FP32 (float)

528.0 GFLOPS

-

FP64 (double)

105.6 GFLOPS

Board Design

Unknown

TDP

165W

200 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Juniper

GPU Name

R680

Juniper XT (215-0754013)

GPU Variant

R680 XT (215-0708017)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.666 billion

166 mm²

Die Size

192 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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