AMD Radeon HD 6625M vs NVIDIA GeForce GTX 850A

VS

AMD Radeon HD 6625M

NVIDIA GeForce GTX 850A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6625M and 2GB VRAM GeForce GTX 850A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6625M 's Advantages

Lower TDP (26W vs 45W)

NVIDIA GeForce GTX 850A 's Advantages

Released 3 years and 2 months late

Boost Clock936MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 25.60GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6625M

0.432 TFLOPS

GeForce GTX 850A +177%

1.198 TFLOPS

Radeon HD 6625M

VS

GeForce GTX 850A

Graphics Card

Jan 2011

Release Date

Mar 2014

Vancouver

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

902 MHz

-

Boost Clock

936 MHz

800 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

28.80GB/s

Render Config

6

Compute Units

-

480

Shading Units

640

24

TMUs

40

8

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

3.600 GPixel/s

Pixel Rate

14.98 GPixel/s

10.80 GTexel/s

Texture Rate

37.44 GTexel/s

-

432.0 GFLOPS

FP32 (float)

1198 GFLOPS

-

FP64 (double)

37.44 GFLOPS

Board Design

26W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

GM107

Whistler LP

GPU Variant

N15P-GT-A1

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.87 billion

104 mm²

Die Size

148 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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