AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 780 Rev. 2

VS

AMD Radeon HD 6870 X2

NVIDIA GeForce GTX 780 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 3GB VRAM GeForce GTX 780 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 Rev. 2 's Advantages

Released 2 years and 2 months late

Boost Clock902MHz

More VRAM (3GB vs 1024GB)

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

1184 additional rendering cores

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

GeForce GTX 780 Rev. 2 +106%

4.156 TFLOPS

Radeon HD 6870 X2

VS

GeForce GTX 780 Rev. 2

Graphics Card

Jul 2011

Release Date

Sep 2013

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

863 MHz

-

Boost Clock

902 MHz

1050 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

288.4GB/s

Render Config

14

Compute Units

-

1120

Shading Units

2304

56

TMUs

192

32

ROPs

48

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

43.30 GPixel/s

50.40 GTexel/s

Texture Rate

173.2 GTexel/s

-

2.016 TFLOPS

FP32 (float)

4.156 TFLOPS

-

FP64 (double)

173.2 GFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

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

Outputs

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

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

GK110B

Barts XT (215-0798000)

GPU Variant

GK110-300-B1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

7.08 billion

255 mm²

Die Size

561 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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