ATI Mobility Radeon HD 4670 vs NVIDIA GeForce 840M

VS

ATI Mobility Radeon HD 4670 NVIDIA GeForce 840M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4670 and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 16.02GB/s)

NVIDIA GeForce 840M 's Advantages

Released 5 years and 2 months late

Boost Clock1124MHz

64 additional rendering cores

Lower TDP (33W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670

0.432 TFLOPS

GeForce 840M +99%

0.863 TFLOPS

Mobility Radeon HD 4670

VS

GeForce 840M

Graphics Card

Jan 2009

Release Date

Mar 2014

M9x

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

800 MHz

Memory Clock

1001 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

16.02GB/s

Render Config

-

SM Count

-

4

Compute Units

-

320

Shading Units

384

32

TMUs

16

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

1024 KB

Theoretical Performance

5.400 GPixel/s

Pixel Rate

8.992 GPixel/s

21.60 GTexel/s

Texture Rate

17.98 GTexel/s

-

FP16 (half)

-

432.0 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Graphics Processor

M96

GPU Name

GM108

M96 XT (216-0729051)

GPU Variant

N15S-GT

TeraScale

Architecture

Maxwell

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

Unknown

146 mm²

Die Size

Unknown

Board Design

35W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

4.1

Shader Model

5.1

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