AMD Radeon HD 6770 vs ATI Radeon HD 2600 XT

VS

AMD Radeon HD 6770

ATI Radeon HD 2600 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 256MB VRAM ATI Radeon HD 2600 XT 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 7 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (76.80GB/s vs 22.40GB/s)

680 additional rendering cores

ATI Radeon HD 2600 XT 's Advantages

Lower TDP (45W vs 108W)

Score

Benchmark

FP32 (float)

Radeon HD 6770 +608%

1.36 TFLOPS

ATI Radeon HD 2600 XT

0.192 TFLOPS

Radeon HD 6770

VS

ATI Radeon HD 2600 XT

Graphics Card

Jan 2011

Release Date

Jun 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

700 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

76.80GB/s

Bandwidth

22.40GB/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

45W

300 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

None

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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