NVIDIA GeForce GTX 850M vs ATI Mobility Radeon X2500

VS

NVIDIA GeForce GTX 850M

ATI Mobility Radeon X2500

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850M and 256MB VRAM Mobility Radeon X2500 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850M 's Advantages

Released 6 years and 9 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (32.03GB/s vs 12.80GB/s)

640 additional rendering cores

Score

GeForce GTX 850M

VS

Mobility Radeon X2500

Graphics Card

Mar 2014

Release Date

Jun 2007

GeForce 800M

Generation

M6x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1001 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

32.03GB/s

Bandwidth

12.80GB/s

Render Config

-

640

Shading Units

-

40

TMUs

4

16

ROPs

4

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

-

Theoretical Performance

14.43 GPixel/s

Pixel Rate

1.840 GPixel/s

36.08 GTexel/s

Texture Rate

1.840 GTexel/s

-

1155 GFLOPS

FP32 (float)

-

36.08 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM107

GPU Name

M66

N15P-GT-A1

GPU Variant

-

Maxwell

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

1.87 billion

Transistors

0.157 billion

148 mm²

Die Size

150 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

3.0

OpenCL

N/A

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

3.0

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