AMD Radeon R9 Nano vs AMD Radeon HD 7950 Mac Edition

VS

AMD Radeon R9 Nano AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 Nano and 3GB VRAM Radeon HD 7950 Mac 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 2 years and 5 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (512.0GB/s vs 240.0GB/s)

2304 additional rendering cores

Lower TDP (175W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 Nano +185%

8.192 TFLOPS

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon R9 Nano

VS

Radeon HD 7950 Mac Edition

Graphics Card

Aug 2015

Release Date

Mar 2013

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

1250 MHz

Memory

4GB

Memory Size

3GB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

384bit

512.0GB/s

Bandwidth

240.0GB/s

Render Config

-

SM Count

-

64

Compute Units

28

4096

Shading Units

1792

256

TMUs

112

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

25.60 GPixel/s

256.0 GTexel/s

Texture Rate

89.60 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

2.867 TFLOPS

512.0 GFLOPS

FP64 (double)

716.8 GFLOPS

Graphics Processor

Fiji

GPU Name

Tahiti

Fiji XT CA (215-0862120)

GPU Variant

Tahiti PRO (215-0821056)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8.9 billion

Transistors

4.313 billion

596 mm²

Die Size

352 mm²

Board Design

175W

TDP

200W

450 W

Suggested PSU

550 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

2x 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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