AMD Radeon R7 M270 vs NVIDIA GeForce GT 640M Mac Edition

VS

AMD Radeon R7 M270 NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon R7 M270 and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 M270 's Advantages

Released 11 months late

Boost Clock825MHz

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Larger VRAM bandwidth (40.00GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

Radeon R7 M270 +10%

0.633 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

Radeon R7 M270

VS

GeForce GT 640M Mac Edition

Graphics Card

Jan 2014

Release Date

Feb 2013

Gem System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

725 MHz

Base Clock

-

825 MHz

Boost Clock

-

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

40.00GB/s

Render Config

-

SM Count

-

6

Compute Units

-

384

Shading Units

384

24

TMUs

32

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

128 KB

Theoretical Performance

6.600 GPixel/s

Pixel Rate

5.960 GPixel/s

19.80 GTexel/s

Texture Rate

23.84 GTexel/s

-

FP16 (half)

-

633.6 GFLOPS

FP32 (float)

572.2 GFLOPS

-

FP64 (double)

23.84 GFLOPS

Graphics Processor

Opal

GPU Name

GK107

Opal XT

GPU Variant

N13P-GS

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.27 billion

77 mm²

Die Size

118 mm²

Board Design

Unknown

TDP

32W

-

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

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.0

6.5 (5.1)

Shader Model

5.1

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