AMD Radeon Sky 900 vs NVIDIA GeForce GTX 780 6 GB

VS

AMD Radeon Sky 900

NVIDIA GeForce GTX 780 6 GB

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 6GB VRAM GeForce GTX 780 6 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Boost Clock has increased by 5% (950MHz vs 902MHz)

NVIDIA GeForce GTX 780 6 GB 's Advantages

Released 6 months late

More VRAM (6GB vs 3GB)

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

512 additional rendering cores

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900

3.405 TFLOPS

GeForce GTX 780 6 GB +22%

4.156 TFLOPS

Radeon Sky 900

VS

GeForce GTX 780 6 GB

Graphics Card

Mar 2013

Release Date

Sep 2013

Radeon Sky

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

825 MHz

Base Clock

863 MHz

950 MHz

Boost Clock

902 MHz

1250 MHz

Memory Clock

1502 MHz

Memory

3GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

288.4GB/s

Render Config

28

Compute Units

-

1792

Shading Units

2304

112

TMUs

192

32

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

1536 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

43.30 GPixel/s

106.4 GTexel/s

Texture Rate

173.2 GTexel/s

-

3.405 TFLOPS

FP32 (float)

4.156 TFLOPS

851.2 GFLOPS

FP64 (double)

173.2 GFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

GK110B

Orthrus

GPU Variant

GK110-301-B1

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

7.08 billion

352 mm²

Die Size

561 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

5.1

Shader Model

5.1

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