NVIDIA GeForce GTX 780 6 GB vs AMD Radeon HD 7950 Mac Edition

VS

NVIDIA GeForce GTX 780 6 GB

AMD Radeon HD 7950 Mac Edition

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 780 6 GB 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

NVIDIA GeForce GTX 780 6 GB 's Advantages

Released 6 months late

Boost Clock902MHz

More VRAM (6GB vs 3GB)

Larger VRAM bandwidth (288.4GB/s vs 240.0GB/s)

512 additional rendering cores

AMD Radeon HD 7950 Mac Edition 's Advantages

Lower TDP (200W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 6 GB +44%

4.156 TFLOPS

Radeon HD 7950 Mac Edition

2.867 TFLOPS

GeForce GTX 780 6 GB

VS

Radeon HD 7950 Mac Edition

Graphics Card

Sep 2013

Release Date

Mar 2013

GeForce 700

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

1250 MHz

Memory

6GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

288.4GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

-

2304

Shading Units

1792

192

TMUs

112

48

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

1536 KB

L2 Cache

768 KB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

25.60 GPixel/s

173.2 GTexel/s

Texture Rate

89.60 GTexel/s

-

4.156 TFLOPS

FP32 (float)

2.867 TFLOPS

173.2 GFLOPS

FP64 (double)

716.8 GFLOPS

Board Design

250W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GK110B

GPU Name

Tahiti

GK110-301-B1

GPU Variant

Tahiti PRO (215-0821056)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

4.313 billion

561 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.5

CUDA

-

5.1

Shader Model

5.1

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