AMD Radeon HD 6870 vs NVIDIA GeForce GTX 780 6 GB

VS

AMD Radeon HD 6870

NVIDIA GeForce GTX 780 6 GB

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 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 HD 6870 's Advantages

Lower TDP (151W vs 250W)

NVIDIA GeForce GTX 780 6 GB 's Advantages

Released 2 years and 11 months late

Boost Clock902MHz

More VRAM (6GB vs 1024GB)

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

1184 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870

2.016 TFLOPS

GeForce GTX 780 6 GB +106%

4.156 TFLOPS

Radeon HD 6870

VS

GeForce GTX 780 6 GB

Graphics Card

Oct 2010

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

6GB

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

151W

TDP

250W

450 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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

GK110B

Barts XT (215-0798000)

GPU Variant

GK110-301-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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