AMD Radeon HD 7950 Mac Edition vs NVIDIA GeForce 405 OEM

VS

AMD Radeon HD 7950 Mac Edition

NVIDIA GeForce 405 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 512MB VRAM GeForce 405 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Mac Edition 's Advantages

Released 2 years and 6 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 12.64GB/s)

1776 additional rendering cores

NVIDIA GeForce 405 OEM 's Advantages

Lower TDP (25W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition +6271%

2.867 TFLOPS

GeForce 405 OEM

0.045 TFLOPS

Radeon HD 7950 Mac Edition

VS

GeForce 405 OEM

Graphics Card

Mar 2013

Release Date

Sep 2010

Southern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

790 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

12.64GB/s

Render Config

28

Compute Units

-

SM Count

2

1792

Shading Units

16

112

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

32 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.356 GPixel/s

89.60 GTexel/s

Texture Rate

4.712 GTexel/s

-

2.867 TFLOPS

FP32 (float)

44.86 GFLOPS

716.8 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

25W

550 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GT218

Tahiti PRO (215-0821056)

GPU Variant

GT218-300-B1

GCN 1.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.26 billion

352 mm²

Die Size

57 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.2

5.1

Shader Model

4.1

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