NVIDIA GeForce 945A vs AMD Radeon HD 6770M

VS

NVIDIA GeForce 945A

AMD Radeon HD 6770M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 945A and 1024MB VRAM Radeon HD 6770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 945A 's Advantages

Released 4 years and 2 months late

Boost Clock1189MHz

Lower TDP (33W vs 35W)

AMD Radeon HD 6770M 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 40.10GB/s)

96 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 945A +31%

0.913 TFLOPS

Radeon HD 6770M

0.696 TFLOPS

GeForce 945A

VS

Radeon HD 6770M

Graphics Card

Mar 2015

Release Date

Jan 2011

GeForce 900A

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-A (3.0)

Clock Speeds

1006 MHz

Base Clock

-

1189 MHz

Boost Clock

-

1253 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

40.10GB/s

Bandwidth

57.60GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

480

24

TMUs

24

8

ROPs

8

-

64 KB (per SMM)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

9.512 GPixel/s

Pixel Rate

5.800 GPixel/s

28.54 GTexel/s

Texture Rate

17.40 GTexel/s

-

913.2 GFLOPS

FP32 (float)

696.0 GFLOPS

28.54 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

Whistler

-

GPU Variant

Whistler XT (216-0810001)

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

Unknown

Transistors

0.716 billion

Unknown

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

5.0

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