AMD Radeon HD 7670M vs NVIDIA GeForce 840A

VS

AMD Radeon HD 7670M

NVIDIA GeForce 840A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7670M and 2GB VRAM GeForce 840A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7670M 's Advantages

Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)

96 additional rendering cores

Lower TDP (20W vs 33W)

NVIDIA GeForce 840A 's Advantages

Released 2 years and 1 months late

Boost Clock1124MHz

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon HD 7670M

0.576 TFLOPS

GeForce 840A +49%

0.863 TFLOPS

Radeon HD 7670M

VS

GeForce 840A

Graphics Card

Feb 2012

Release Date

Mar 2014

London

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

900 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

16.02GB/s

Render Config

6

Compute Units

-

480

Shading Units

384

24

TMUs

16

ROPs

8

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

8.992 GPixel/s

14.40 GTexel/s

Texture Rate

17.98 GTexel/s

-

576.0 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Board Design

20W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Thames

GPU Name

GM108

Thames XT (216-0833000)

GPU Variant

-

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

Unknown

104 mm²

Die Size

Unknown

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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