NVIDIA GeForce 805A vs ATI Mobility Radeon HD 4870

VS

NVIDIA GeForce 805A

ATI Mobility Radeon HD 4870

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 512MB VRAM Mobility Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Released 5 years and 6 months late

Boost Clock758MHz

More VRAM (1024GB vs 512GB)

ATI Mobility Radeon HD 4870 's Advantages

Larger VRAM bandwidth (56.83GB/s vs 16.02GB/s)

608 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

Mobility Radeon HD 4870 +202%

0.88 TFLOPS

GeForce 805A

VS

Mobility Radeon HD 4870

Graphics Card

Jul 2014

Release Date

Jan 2009

GeForce 800A

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

1001 MHz

Memory Clock

888 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

56.83GB/s

Render Config

-

Compute Units

10

-

192

Shading Units

800

16

TMUs

40

8

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

8.800 GPixel/s

12.13 GTexel/s

Texture Rate

22.00 GTexel/s

-

291.1 GFLOPS

FP32 (float)

880.0 GFLOPS

12.13 GFLOPS

FP64 (double)

176.0 GFLOPS

Board Design

15W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GK208

GPU Name

M98

-

GPU Variant

M98 XT L2 (216-0732023)

Kepler 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.02 billion

Transistors

0.956 billion

87 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

4.1

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