AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce GTX 680

VS

AMD Radeon HD 6870 1600SP Edition

NVIDIA GeForce GTX 680

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 2GB VRAM GeForce GTX 680 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

Released 10 months late

64 additional rendering cores

Lower TDP (175W vs 195W)

NVIDIA GeForce GTX 680 's Advantages

Boost Clock1058MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.3GB/s vs 134.4GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

GeForce GTX 680 +19%

3.25 TFLOPS

Radeon HD 6870 1600SP Edition

VS

GeForce GTX 680

Graphics Card

Jan 2013

Release Date

Mar 2012

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1058 MHz

1050 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

192.3GB/s

Render Config

20

Compute Units

-

1600

Shading Units

1536

80

TMUs

128

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

33.86 GPixel/s

68.00 GTexel/s

Texture Rate

135.4 GTexel/s

-

2.720 TFLOPS

FP32 (float)

3.250 TFLOPS

544.0 GFLOPS

FP64 (double)

135.4 GFLOPS

Board Design

175W

TDP

195W

450 W

Suggested PSU

450 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

2x 6-pin

Graphics Processor

Cypress

GPU Name

GK104

Cypress XT (215-0735033)

GPU Variant

GK104-400-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

3.54 billion

334 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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