AMD Radeon HD 6770 vs ATI Radeon HD 2600 XT X2

VS

AMD Radeon HD 6770

ATI Radeon HD 2600 XT X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 512MB VRAM Radeon HD 2600 XT X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

Released 3 years and 6 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (76.80GB/s vs 25.60GB/s)

680 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770 +608%

1.36 TFLOPS

Radeon HD 2600 XT X2

0.192 TFLOPS

Radeon HD 6770

VS

Radeon HD 2600 XT X2

Graphics Card

Jan 2011

Release Date

Jul 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

76.80GB/s

Bandwidth

25.60GB/s

Render Config

10

Compute Units

3

-

800

Shading Units

120

40

TMUs

8

16

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

3.200 GPixel/s

34.00 GTexel/s

Texture Rate

6.400 GTexel/s

-

1360 GFLOPS

FP32 (float)

192.0 GFLOPS

-

Board Design

108W

TDP

Unknown

300 W

Suggested PSU

200 W

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

Outputs

4x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Juniper

GPU Name

RV630

Juniper XT (215-0754013)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.04 billion

Transistors

0.39 billion

166 mm²

Die Size

153 mm²

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.0

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