AMD Radeon HD 6770 vs ATI Radeon HD 5950

VS

AMD Radeon HD 6770

ATI Radeon HD 5950

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6770 and 1024MB VRAM ATI Radeon HD 5950 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770 's Advantages

Lower TDP (108W vs 302W)

ATI Radeon HD 5950 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 76.80GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770

1.36 TFLOPS

ATI Radeon HD 5950 +53%

2.088 TFLOPS

Radeon HD 6770

VS

ATI Radeon HD 5950

Graphics Card

Jan 2011

Release Date

Unknown

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

76.80GB/s

Bandwidth

128.0GB/s

Render Config

10

Compute Units

18

-

800

Shading Units

1440

40

TMUs

72

16

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

23.20 GPixel/s

34.00 GTexel/s

Texture Rate

52.20 GTexel/s

-

1360 GFLOPS

FP32 (float)

2.088 TFLOPS

-

Board Design

108W

TDP

302W

300 W

Suggested PSU

700 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Juniper

GPU Name

Hemlock

Juniper XT (215-0754013)

GPU Variant

Hemlock PRO

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

2.154 billion

166 mm²

Die Size

334 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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