NVIDIA GeForce 840A vs ATI Radeon E4690 PCIe

VS

NVIDIA GeForce 840A

ATI Radeon E4690 PCIe

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 512MB VRAM Radeon E4690 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Released 4 years and 9 months late

Boost Clock1124MHz

More VRAM (2GB vs 512GB)

64 additional rendering cores

ATI Radeon E4690 PCIe 's Advantages

Larger VRAM bandwidth (22.40GB/s vs 16.02GB/s)

Lower TDP (30W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 840A +124%

0.863 TFLOPS

Radeon E4690 PCIe

0.384 TFLOPS

GeForce 840A

VS

Radeon E4690 PCIe

Graphics Card

Mar 2014

Release Date

Jun 2009

GeForce 800A

Generation

Embedded

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

22.40GB/s

Render Config

-

Compute Units

4

-

384

Shading Units

320

16

TMUs

32

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

4.800 GPixel/s

17.98 GTexel/s

Texture Rate

19.20 GTexel/s

-

863.2 GFLOPS

FP32 (float)

384.0 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

30W

-

No outputs

Outputs

2x DVI

-

Graphics Processor

GM108

GPU Name

RV730

-

GPU Variant

RV730 XT E4690 (215-0729055)

Maxwell

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

Unknown

Transistors

0.514 billion

Unknown

Die Size

146 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

4.1

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