AMD Radeon HD 6870 vs NVIDIA GeForce GT 440 Mac Edition

VS

AMD Radeon HD 6870 NVIDIA GeForce GT 440 Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 1024MB VRAM GeForce GT 440 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 21.34GB/s)

1024 additional rendering cores

NVIDIA GeForce GT 440 Mac Edition 's Advantages

Lower TDP (65W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +548%

2.016 TFLOPS

GeForce GT 440 Mac Edition

0.311 TFLOPS

Radeon HD 6870

VS

GeForce GT 440 Mac Edition

Graphics Card

Oct 2010

Release Date

Feb 2011

Northern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

667 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

21.34GB/s

Render Config

-

SM Count

2

14

Compute Units

-

1120

Shading Units

96

56

TMUs

16

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

3.240 GPixel/s

50.40 GTexel/s

Texture Rate

12.96 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

311.0 GFLOPS

-

FP64 (double)

25.92 GFLOPS

Graphics Processor

Barts

GPU Name

GF108

Barts XT (215-0798000)

GPU Variant

GF108-400-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.585 billion

255 mm²

Die Size

116 mm²

Board Design

151W

TDP

65W

450 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

2x 6-pin

Power Connectors

None

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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