AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GTX 780 Ti

VS

AMD Radeon HD 6870 1600SP Edition

NVIDIA GeForce GTX 780 Ti

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 3GB VRAM GeForce GTX 780 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Lower TDP (175W vs 250W)

NVIDIA GeForce GTX 780 Ti 's Advantages

Released 10 months late

Boost Clock928MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (336.6GB/s vs 134.4GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

GeForce GTX 780 Ti +96%

5.345 TFLOPS

Radeon HD 6870 1600SP Edition

VS

GeForce GTX 780 Ti

Graphics Card

Jan 2013

Release Date

Nov 2013

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

1050 MHz

Memory Clock

1753 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

336.6GB/s

Render Config

20

Compute Units

-

1600

Shading Units

2880

80

TMUs

240

32

ROPs

48

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

55.68 GPixel/s

68.00 GTexel/s

Texture Rate

222.7 GTexel/s

-

2.720 TFLOPS

FP32 (float)

5.345 TFLOPS

544.0 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

175W

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

Cypress

GPU Name

GK110B

Cypress XT (215-0735033)

GPU Variant

GK110-425-B1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

7.08 billion

334 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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