AMD Radeon HD 6770 vs ATI Radeon HD 3450

VS

AMD Radeon HD 6770

ATI Radeon HD 3450

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 256MB VRAM Radeon HD 3450 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 1 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (76.80GB/s vs 8.000GB/s)

760 additional rendering cores

ATI Radeon HD 3450 's Advantages

Lower TDP (25W vs 108W)

Score

Benchmark

FP32 (float)

Radeon HD 6770 +2733%

1.36 TFLOPS

Radeon HD 3450

0.048 TFLOPS

Radeon HD 6770

VS

Radeon HD 3450

Graphics Card

Jan 2011

Release Date

Dec 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

76.80GB/s

Bandwidth

8.000GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

40

TMUs

4

16

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

2.400 GPixel/s

34.00 GTexel/s

Texture Rate

2.400 GTexel/s

-

1360 GFLOPS

FP32 (float)

48.00 GFLOPS

-

Board Design

108W

TDP

25W

300 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Juniper

GPU Name

RV620

Juniper XT (215-0754013)

GPU Variant

RV620 LE

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.04 billion

Transistors

0.181 billion

166 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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