ATI Radeon HD 4860 vs AMD Radeon HD 6770 Green Edition

VS

ATI Radeon HD 4860

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4860 and 2GB VRAM Radeon HD 6770 Green Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4860 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 21.34GB/s)

AMD Radeon HD 6770 Green Edition 's Advantages

Released 3 years and 7 months late

More VRAM (2GB vs 512GB)

80 additional rendering cores

Lower TDP (86W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 4860

0.896 TFLOPS

Radeon HD 6770 Green Edition +12%

1.008 TFLOPS

Radeon HD 4860

VS

Radeon HD 6770 Green Edition

Graphics Card

Sep 2009

Release Date

Apr 2013

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

750 MHz

Memory Clock

667 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

96.00GB/s

Bandwidth

21.34GB/s

Render Config

8

Compute Units

9

-

640

Shading Units

720

32

TMUs

36

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

11.20 GPixel/s

22.40 GTexel/s

Texture Rate

25.20 GTexel/s

-

896.0 GFLOPS

FP32 (float)

1008 GFLOPS

179.2 GFLOPS

FP64 (double)

-

Board Design

130W

TDP

86W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

-

Graphics Processor

RV790

GPU Name

Juniper

RV790 GT

GPU Variant

Juniper LE (215-0754009)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.959 billion

Transistors

1.04 billion

282 mm²

Die Size

166 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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