AMD Radeon HD 8770M vs NVIDIA GeForce 800A

VS

AMD Radeon HD 8770M

NVIDIA GeForce 800A

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 1024MB VRAM GeForce 800A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Boost Clock825MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 14.40GB/s)

336 additional rendering cores

NVIDIA GeForce 800A 's Advantages

Released 11 months late

Score

Benchmark

FP32 (float)

Radeon HD 8770M +595%

0.633 TFLOPS

GeForce 800A

0.091 TFLOPS

Radeon HD 8770M

VS

GeForce 800A

Graphics Card

Apr 2013

Release Date

Mar 2014

Solar System

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

775 MHz

Base Clock

-

825 MHz

Boost Clock

-

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

-

SM Count

1

384

Shading Units

48

24

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

950.0 MPixel/s

19.80 GTexel/s

Texture Rate

3.800 GTexel/s

-

633.6 GFLOPS

FP32 (float)

91.20 GFLOPS

39.60 GFLOPS

FP64 (double)

7.600 GFLOPS

Board Design

Unknown

TDP

15W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

GF119

Mars S3 XT (216-0842018)

GPU Variant

-

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.292 billion

77 mm²

Die Size

79 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

2.1

6.5 (5.1)

Shader Model

5.1

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