AMD Radeon HD 6770 vs AMD Radeon HD 7450 OEM

VS

AMD Radeon HD 6770

AMD Radeon HD 7450 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 512MB VRAM Radeon HD 7450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (76.80GB/s vs 8.528GB/s)

640 additional rendering cores

AMD Radeon HD 7450 OEM 's Advantages

Released 1 years late

Lower TDP (18W vs 108W)

Score

Benchmark

FP32 (float)

Radeon HD 6770 +580%

1.36 TFLOPS

Radeon HD 7450 OEM

0.2 TFLOPS

Radeon HD 6770

VS

Radeon HD 7450 OEM

Graphics Card

Jan 2011

Release Date

Jan 2012

Northern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

533 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

76.80GB/s

Bandwidth

8.528GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

160

40

TMUs

8

16

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

2.500 GPixel/s

34.00 GTexel/s

Texture Rate

5.000 GTexel/s

-

1360 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

108W

TDP

18W

300 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Processor

Juniper

GPU Name

Caicos

Juniper XT (215-0754013)

GPU Variant

Caimour

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

0.37 billion

166 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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