NVIDIA GeForce GTX 580 Rev. 2 vs AMD Radeon HD 6870

VS

NVIDIA GeForce GTX 580 Rev. 2

AMD Radeon HD 6870

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 580 Rev. 2 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 580 Rev. 2 's Advantages

Released 8 months late

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (192.4GB/s vs 134.4GB/s)

AMD Radeon HD 6870 's Advantages

608 additional rendering cores

Lower TDP (151W vs 244W)

Score

Benchmark

FP32 (float)

GeForce GTX 580 Rev. 2

1.581 TFLOPS

Radeon HD 6870 +27%

2.016 TFLOPS

GeForce GTX 580 Rev. 2

VS

Radeon HD 6870

Graphics Card

Jun 2011

Release Date

Oct 2010

GeForce 500

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1002 MHz

Memory Clock

1050 MHz

Memory

1536MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

192.4GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

14

16

SM Count

-

512

Shading Units

1120

64

TMUs

56

48

ROPs

32

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

24.70 GPixel/s

Pixel Rate

28.80 GPixel/s

49.41 GTexel/s

Texture Rate

50.40 GTexel/s

-

1.581 TFLOPS

FP32 (float)

2.016 TFLOPS

197.6 GFLOPS

FP64 (double)

-

Board Design

244W

TDP

151W

550 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GF110

GPU Name

Barts

GF110-380-A1

GPU Variant

Barts XT (215-0798000)

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

3 billion

Transistors

1.7 billion

520 mm²

Die Size

255 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.0

CUDA

-

5.1

Shader Model

5.0

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