AMD Radeon HD 8770M vs NVIDIA GeForce 805A

VS

AMD Radeon HD 8770M

NVIDIA GeForce 805A

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Boost Clock has increased by 9% (825MHz vs 758MHz)

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (72.00GB/s vs 16.02GB/s)

192 additional rendering cores

NVIDIA GeForce 805A 's Advantages

Released 1 years and 3 months late

Score

Benchmark

FP32 (float)

Radeon HD 8770M +117%

0.633 TFLOPS

GeForce 805A

0.291 TFLOPS

Radeon HD 8770M

VS

GeForce 805A

Graphics Card

Apr 2013

Release Date

Jul 2014

Solar System

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

775 MHz

Base Clock

719 MHz

825 MHz

Boost Clock

758 MHz

1125 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

16.02GB/s

Render Config

6

Compute Units

-

384

Shading Units

192

24

TMUs

16

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

6.064 GPixel/s

19.80 GTexel/s

Texture Rate

12.13 GTexel/s

-

633.6 GFLOPS

FP32 (float)

291.1 GFLOPS

39.60 GFLOPS

FP64 (double)

12.13 GFLOPS

Board Design

Unknown

TDP

15W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

GK208

Mars S3 XT (216-0842018)

GPU Variant

-

GCN 1.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.02 billion

77 mm²

Die Size

87 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.5

6.5 (5.1)

Shader Model

5.1

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