ATI Mobility Radeon HD 3870 X2 vs NVIDIA GeForce 800A

VS

ATI Mobility Radeon HD 3870 X2 NVIDIA GeForce 800A

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 X2 and 1024MB VRAM GeForce 800A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 X2 's Advantages

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

272 additional rendering cores

NVIDIA GeForce 800A 's Advantages

Released 5 years and 6 months late

More VRAM (1024GB vs 512GB)

Lower TDP (15W vs 110W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870 X2 +363%

0.422 TFLOPS

GeForce 800A

0.091 TFLOPS

Mobility Radeon HD 3870 X2

VS

GeForce 800A

Graphics Card

Sep 2008

Release Date

Mar 2014

M8x

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

850 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

256bit

Memory Bus

64bit

54.40GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

1

4

Compute Units

-

320

Shading Units

48

16

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

Theoretical Performance

10.56 GPixel/s

Pixel Rate

950.0 MPixel/s

10.56 GTexel/s

Texture Rate

3.800 GTexel/s

-

FP16 (half)

-

422.4 GFLOPS

FP32 (float)

91.20 GFLOPS

84.48 GFLOPS

FP64 (double)

7.600 GFLOPS

Graphics Processor

M88

GPU Name

GF119

-

GPU Variant

-

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.292 billion

192 mm²

Die Size

79 mm²

Board Design

110W

TDP

15W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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