NVIDIA GeForce GTX 780 Ti vs AMD Radeon Sky 900

VS

NVIDIA GeForce GTX 780 Ti

AMD Radeon Sky 900

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

Main Differences

NVIDIA GeForce GTX 780 Ti 's Advantages

Released 8 months late

Larger VRAM bandwidth (336.6GB/s vs 240.0GB/s)

1088 additional rendering cores

Lower TDP (250W vs 300W)

AMD Radeon Sky 900 's Advantages

Boost Clock has increased by 2% (950MHz vs 928MHz)

Score

Benchmark

FP32 (float)

GeForce GTX 780 Ti +56%

5.345 TFLOPS

Radeon Sky 900

3.405 TFLOPS

GeForce GTX 780 Ti

VS

Radeon Sky 900

Graphics Card

Nov 2013

Release Date

Mar 2013

GeForce 700

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

875 MHz

Base Clock

825 MHz

928 MHz

Boost Clock

950 MHz

1753 MHz

Memory Clock

1250 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

336.6GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

-

2880

Shading Units

1792

240

TMUs

112

48

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

1536 KB

L2 Cache

768 KB

-

Theoretical Performance

55.68 GPixel/s

Pixel Rate

30.40 GPixel/s

222.7 GTexel/s

Texture Rate

106.4 GTexel/s

-

5.345 TFLOPS

FP32 (float)

3.405 TFLOPS

222.7 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

250W

TDP

300W

600 W

Suggested PSU

700 W

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

Outputs

1x DVI 1x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

GK110B

GPU Name

Tahiti

GK110-425-B1

GPU Variant

Orthrus

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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