AMD Radeon HD 7770 GHz Edition vs ATI Radeon HD 5950

VS

AMD Radeon HD 7770 GHz Edition

ATI Radeon HD 5950

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition 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 7770 GHz Edition 's Advantages

Lower TDP (80W vs 302W)

ATI Radeon HD 5950 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 72.00GB/s)

800 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition

1.28 TFLOPS

ATI Radeon HD 5950 +63%

2.088 TFLOPS

Radeon HD 7770 GHz Edition

VS

ATI Radeon HD 5950

Graphics Card

Feb 2012

Release Date

Unknown

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

72.00GB/s

Bandwidth

128.0GB/s

Render Config

10

Compute Units

18

-

640

Shading Units

1440

40

TMUs

72

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

23.20 GPixel/s

40.00 GTexel/s

Texture Rate

52.20 GTexel/s

-

1280 GFLOPS

FP32 (float)

2.088 TFLOPS

80.00 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

302W

250 W

Suggested PSU

700 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cape Verde

GPU Name

Hemlock

Cape Verde XT

GPU Variant

Hemlock PRO

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

2.154 billion

123 mm²

Die Size

334 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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