AMD Radeon HD 6770M vs NVIDIA GeForce 840M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6770M and 2GB VRAM GeForce 840M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770M 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 16.02GB/s)

96 additional rendering cores

NVIDIA GeForce 840M 's Advantages

Released 3 years and 2 months late

Boost Clock1124MHz

More VRAM (2GB vs 1GB)

Lower TDP (33W vs 35W)

Score

Benchmark

FP32 (float)

Radeon HD 6770M

0.696 TFLOPS

GeForce 840M +23%

0.863 TFLOPS

Radeon HD 6770M

VS

GeForce 840M

Graphics Card

Jan 2011

Release Date

Mar 2014

Vancouver

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

900 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

57.60GB/s

Bandwidth

16.02GB/s

Render Config

-

SM Count

-

6

Compute Units

-

480

Shading Units

384

24

TMUs

16

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

Theoretical Performance

5.800 GPixel/s

Pixel Rate

8.992 GPixel/s

17.40 GTexel/s

Texture Rate

17.98 GTexel/s

-

FP16 (half)

-

696.0 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Graphics Processor

Whistler

GPU Name

GM108

Whistler XT (216-0810001)

GPU Variant

N15S-GT

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

Unknown

104 mm²

Die Size

Unknown

Board Design

35W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

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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