NVIDIA GeForce 805A vs AMD Radeon HD 7770M

VS

NVIDIA GeForce 805A

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 805A and 1024MB VRAM Radeon HD 7770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 805A 's Advantages

Released 2 years and 3 months late

Boost Clock758MHz

Lower TDP (15W vs 32W)

AMD Radeon HD 7770M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 16.02GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 805A

0.291 TFLOPS

Radeon HD 7770M +137%

0.691 TFLOPS

GeForce 805A

VS

Radeon HD 7770M

Graphics Card

Jul 2014

Release Date

Apr 2012

GeForce 800A

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

1001 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

8

-

192

Shading Units

512

16

TMUs

32

8

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

6.064 GPixel/s

Pixel Rate

10.80 GPixel/s

12.13 GTexel/s

Texture Rate

21.60 GTexel/s

-

291.1 GFLOPS

FP32 (float)

691.2 GFLOPS

12.13 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

15W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK208

GPU Name

Chelsea

-

GPU Variant

Chelsea XT

Kepler 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.02 billion

Transistors

1.5 billion

87 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.5

CUDA

-

5.1

Shader Model

5.1

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