ATI Mobility Radeon HD 3870 vs NVIDIA GeForce GT 740M

VS

ATI Mobility Radeon HD 3870

NVIDIA GeForce GT 740M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 2GB VRAM GeForce GT 740M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 14.40GB/s)

NVIDIA GeForce GT 740M 's Advantages

Released 5 years late

More VRAM (2GB vs 512GB)

64 additional rendering cores

Lower TDP (33W vs 55W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870

0.422 TFLOPS

GeForce GT 740M +78%

0.753 TFLOPS

Mobility Radeon HD 3870

VS

GeForce GT 740M

Graphics Card

Jun 2008

Release Date

Jun 2013

M8x

Generation

GeForce 700M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

850 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

256bit

Memory Bus

64bit

54.40GB/s

Bandwidth

14.40GB/s

Render Config

4

Compute Units

-

320

Shading Units

384

16

TMUs

32

16

ROPs

8

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

7.840 GPixel/s

10.56 GTexel/s

Texture Rate

31.36 GTexel/s

-

422.4 GFLOPS

FP32 (float)

752.6 GFLOPS

84.48 GFLOPS

FP64 (double)

31.36 GFLOPS

Board Design

55W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M88

GPU Name

GK208

-

GPU Variant

GT 740M

TeraScale

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

1.02 billion

192 mm²

Die Size

87 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

4.1

Shader Model

5.1

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