AMD Radeon HD 7770 GHz Edition vs ATI Radeon HD 5770

VS

AMD Radeon HD 7770 GHz Edition

ATI Radeon HD 5770

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 1024MB VRAM Radeon HD 5770 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

Released 2 years and 4 months late

Lower TDP (80W vs 108W)

ATI Radeon HD 5770 's Advantages

Larger VRAM bandwidth (76.80GB/s vs 72.00GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon HD 5770 +6%

1.36 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon HD 5770

Graphics Card

Feb 2012

Release Date

Oct 2009

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

76.80GB/s

Render Config

10

Compute Units

10

-

640

Shading Units

800

40

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

13.60 GPixel/s

40.00 GTexel/s

Texture Rate

34.00 GTexel/s

-

1280 GFLOPS

FP32 (float)

1360 GFLOPS

80.00 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

108W

250 W

Suggested PSU

300 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

Graphics Processor

Cape Verde

GPU Name

Juniper

Cape Verde XT

GPU Variant

Juniper XT (215-0754013)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

1.04 billion

123 mm²

Die Size

166 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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