AMD Radeon HD 6850 X2 vs NVIDIA GeForce GTX 560

VS

AMD Radeon HD 6850 X2

NVIDIA GeForce GTX 560

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 1024MB VRAM GeForce GTX 560 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (134.4GB/s vs 128.0GB/s)

624 additional rendering cores

NVIDIA GeForce GTX 560 's Advantages

Lower TDP (150W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2 +41%

1.536 TFLOPS

GeForce GTX 560

1.089 TFLOPS

Radeon HD 6850 X2

VS

GeForce GTX 560

Graphics Card

Sep 2011

Release Date

May 2011

Northern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

128.0GB/s

Render Config

12

Compute Units

-

SM Count

7

960

Shading Units

336

48

TMUs

56

32

ROPs

32

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

11.34 GPixel/s

38.40 GTexel/s

Texture Rate

45.36 GTexel/s

-

1.536 TFLOPS

FP32 (float)

1089 GFLOPS

-

FP64 (double)

90.72 GFLOPS

Board Design

254W

TDP

150W

600 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Barts

GPU Name

GF114

Barts PRO (215-0798006)

GPU Variant

GF114-325-A1

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.95 billion

255 mm²

Die Size

332 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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