AMD Radeon HD 6870 1600SP Edition vs NVIDIA GeForce 505 OEM

VS

AMD Radeon HD 6870 1600SP Edition

NVIDIA GeForce 505 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 512MB VRAM GeForce 505 OEM 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

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 9.600GB/s)

1584 additional rendering cores

NVIDIA GeForce 505 OEM 's Advantages

Lower TDP (25W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition +5944%

2.72 TFLOPS

GeForce 505 OEM

0.045 TFLOPS

Radeon HD 6870 1600SP Edition

VS

GeForce 505 OEM

Graphics Card

Jan 2013

Release Date

Jan 2013

Northern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

9.600GB/s

Render Config

20

Compute Units

-

SM Count

2

1600

Shading Units

16

80

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

2.356 GPixel/s

68.00 GTexel/s

Texture Rate

4.712 GTexel/s

-

2.720 TFLOPS

FP32 (float)

44.86 GFLOPS

544.0 GFLOPS

FP64 (double)

-

Board Design

175W

TDP

25W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

Cypress

GPU Name

GT218

Cypress XT (215-0735033)

GPU Variant

GT218-300-B1

TeraScale 2

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

0.26 billion

334 mm²

Die Size

57 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.2

5.0

Shader Model

4.1

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