AMD Radeon R9 Nano vs AMD Radeon HD 7770 GHz Edition

VS

AMD Radeon R9 Nano AMD Radeon HD 7770 GHz Edition

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 Nano and 1024MB VRAM Radeon HD 7770 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 Nano 's Advantages

Released 3 years and 6 months late

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (512.0GB/s vs 72.00GB/s)

3456 additional rendering cores

AMD Radeon HD 7770 GHz Edition 's Advantages

Lower TDP (80W vs 175W)

Score

Benchmark

FP32 (float)

Radeon R9 Nano +540%

8.192 TFLOPS

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon R9 Nano

VS

Radeon HD 7770 GHz Edition

Graphics Card

Aug 2015

Release Date

Feb 2012

Pirate Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

500 MHz

Memory Clock

1125 MHz

Memory

4GB

Memory Size

1024MB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

128bit

512.0GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

64

Compute Units

10

4096

Shading Units

640

256

TMUs

40

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

16.00 GPixel/s

256.0 GTexel/s

Texture Rate

40.00 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

1280 GFLOPS

512.0 GFLOPS

FP64 (double)

80.00 GFLOPS

Graphics Processor

Fiji

GPU Name

Cape Verde

Fiji XT CA (215-0862120)

GPU Variant

Cape Verde XT

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8.9 billion

Transistors

1.5 billion

596 mm²

Die Size

123 mm²

Board Design

175W

TDP

80W

450 W

Suggested PSU

250 W

1x HDMI 1.4a 3x DisplayPort 1.2

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

5.1

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