AMD Radeon HD 6850 vs NVIDIA GeForce GT 545

VS

AMD Radeon HD 6850

NVIDIA GeForce GT 545

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 1536MB VRAM GeForce GT 545 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 38.40GB/s)

816 additional rendering cores

NVIDIA GeForce GT 545 's Advantages

Released 7 months late

More VRAM (1536GB vs 1024GB)

Lower TDP (70W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +258%

1.488 TFLOPS

GeForce GT 545

0.415 TFLOPS

Radeon HD 6850

VS

GeForce GT 545

Graphics Card

Oct 2010

Release Date

May 2011

Northern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

192bit

128.0GB/s

Bandwidth

38.40GB/s

Render Config

12

Compute Units

-

SM Count

3

960

Shading Units

144

48

TMUs

24

32

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

4.320 GPixel/s

37.20 GTexel/s

Texture Rate

17.28 GTexel/s

-

1488 GFLOPS

FP32 (float)

414.7 GFLOPS

-

FP64 (double)

34.56 GFLOPS

Board Design

127W

TDP

70W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

GF116

Barts PRO (215-0798006)

GPU Variant

-

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

1.17 billion

255 mm²

Die Size

238 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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