NVIDIA GeForce 820M vs AMD Radeon HD 6490M

VS

NVIDIA GeForce 820M

AMD Radeon HD 6490M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 512MB VRAM Radeon HD 6490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Released 4 years and 2 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (28.83GB/s vs 25.60GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 820M +142%

0.622 TFLOPS

Radeon HD 6490M

0.256 TFLOPS

GeForce 820M

VS

Radeon HD 6490M

Graphics Card

Mar 2015

Release Date

Jan 2011

GeForce 800M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

901 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

28.83GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

-

384

Shading Units

160

32

TMUs

8

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

3.200 GPixel/s

25.92 GTexel/s

Texture Rate

6.400 GTexel/s

-

622.1 GFLOPS

FP32 (float)

256.0 GFLOPS

25.92 GFLOPS

FP64 (double)

-

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GK107

GPU Name

Seymour

-

GPU Variant

Seymour XTX S3 (216-0809024)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.37 billion

118 mm²

Die Size

67 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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