AMD Radeon HD 6750M vs ATI Mobility Radeon HD 3870

VS

AMD Radeon HD 6750M ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6750M and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6750M 's Advantages

Released 2 years and 7 months late

More VRAM (1024GB vs 512GB)

160 additional rendering cores

Lower TDP (35W vs 55W)

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 25.60GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6750M +36%

0.576 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon HD 6750M

VS

Mobility Radeon HD 3870

Graphics Card

Jan 2011

Release Date

Jun 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

54.40GB/s

Render Config

-

SM Count

-

6

Compute Units

4

480

Shading Units

320

24

TMUs

16

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

4.800 GPixel/s

Pixel Rate

10.56 GPixel/s

14.40 GTexel/s

Texture Rate

10.56 GTexel/s

-

FP16 (half)

-

576.0 GFLOPS

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Graphics Processor

Whistler

GPU Name

M88

Whistler PRO (216-0810005)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.666 billion

104 mm²

Die Size

192 mm²

Board Design

35W

TDP

55W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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