AMD Radeon HD 6625M vs NVIDIA GeForce GTX 870M

VS

AMD Radeon HD 6625M

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6625M and 3GB VRAM GeForce GTX 870M 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 100W)

NVIDIA GeForce GTX 870M 's Advantages

Released 3 years and 2 months late

Boost Clock967MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (120.0GB/s vs 25.60GB/s)

864 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6625M

0.432 TFLOPS

GeForce GTX 870M +501%

2.599 TFLOPS

Radeon HD 6625M

VS

GeForce GTX 870M

Graphics Card

Jan 2011

Release Date

Mar 2014

Vancouver

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

941 MHz

-

Boost Clock

967 MHz

800 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

25.60GB/s

Bandwidth

120.0GB/s

Render Config

6

Compute Units

-

480

Shading Units

1344

24

TMUs

112

8

ROPs

24

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

3.600 GPixel/s

Pixel Rate

27.08 GPixel/s

10.80 GTexel/s

Texture Rate

108.3 GTexel/s

-

432.0 GFLOPS

FP32 (float)

2.599 TFLOPS

-

FP64 (double)

108.3 GFLOPS

Board Design

26W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Whistler

GPU Name

GK104

Whistler LP

GPU Variant

N15E-GT-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

3.54 billion

104 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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