AMD Radeon HD 7770 GHz Edition vs AMD Radeon R9 290X

VS

AMD Radeon HD 7770 GHz Edition

AMD Radeon R9 290X

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 4GB VRAM Radeon R9 290X 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 290W)

AMD Radeon R9 290X 's Advantages

Released 1 years and 8 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (320.0GB/s vs 72.00GB/s)

2176 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon R9 290X +340%

5.632 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon R9 290X

Graphics Card

Feb 2012

Release Date

Oct 2013

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

72.00GB/s

Bandwidth

320.0GB/s

Render Config

10

Compute Units

44

-

640

Shading Units

2816

40

TMUs

176

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

64.00 GPixel/s

40.00 GTexel/s

Texture Rate

176.0 GTexel/s

-

1280 GFLOPS

FP32 (float)

5.632 TFLOPS

80.00 GFLOPS

FP64 (double)

704.0 GFLOPS

Board Design

80W

TDP

290W

250 W

Suggested PSU

600 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Cape Verde

GPU Name

Hawaii

Cape Verde XT

GPU Variant

Hawaii XT (215-0852000)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

6.2 billion

123 mm²

Die Size

438 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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