AMD Radeon R7 M270 vs NVIDIA GeForce 820A

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We compared two Mobile platform GPUs: 2GB VRAM Radeon R7 M270 and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M270 's Advantages

Boost Clock825MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)

288 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 M270 +112%

0.633 TFLOPS

GeForce 820A

0.298 TFLOPS

Radeon R7 M270

VS

GeForce 820A

Graphics Card

Jan 2014

Release Date

Mar 2014

Gem System

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

725 MHz

Base Clock

-

825 MHz

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

2

6

Compute Units

-

384

Shading Units

96

24

TMUs

16

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

Theoretical Performance

6.600 GPixel/s

Pixel Rate

3.100 GPixel/s

19.80 GTexel/s

Texture Rate

12.40 GTexel/s

-

FP16 (half)

-

633.6 GFLOPS

FP32 (float)

297.6 GFLOPS

-

FP64 (double)

24.80 GFLOPS

Graphics Processor

Opal

GPU Name

GF117

Opal XT

GPU Variant

N15V-GM

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

0.585 billion

77 mm²

Die Size

116 mm²

Board Design

Unknown

TDP

15W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

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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