NVIDIA GeForce GTX 780 vs AMD Radeon HD 6850 X2

VS

NVIDIA GeForce GTX 780

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 2GB VRAM Radeon HD 6850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 's Advantages

Released 1 years and 8 months late

Boost Clock902MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (288.4GB/s vs 134.4GB/s)

1344 additional rendering cores

Lower TDP (250W vs 254W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 +170%

4.156 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

GeForce GTX 780

VS

Radeon HD 6850 X2

Graphics Card

May 2013

Release Date

Sep 2011

GeForce 700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

1050 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

288.4GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

12

-

2304

Shading Units

960

192

TMUs

48

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

1536 KB

L2 Cache

512 KB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

25.60 GPixel/s

173.2 GTexel/s

Texture Rate

38.40 GTexel/s

-

4.156 TFLOPS

FP32 (float)

1.536 TFLOPS

173.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

254W

600 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

GK110

GPU Name

Barts

GK110-300-A1

GPU Variant

Barts PRO (215-0798006)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

7.08 billion

Transistors

1.7 billion

561 mm²

Die Size

255 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

5.0

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