AMD Radeon R5 A240 vs NVIDIA GeForce GT 640M Mac Edition

VS

AMD Radeon R5 A240

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A240 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 R5 A240 's Advantages

Released 11 months late

More VRAM (1024GB vs 512GB)

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Larger VRAM bandwidth (40.00GB/s vs 14.40GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A240 +15%

0.659 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

Radeon R5 A240

VS

GeForce GT 640M Mac Edition

Graphics Card

Jan 2014

Release Date

Feb 2013

All-In-One

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

40.00GB/s

Render Config

5

Compute Units

-

320

Shading Units

384

20

TMUs

32

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

8.240 GPixel/s

Pixel Rate

5.960 GPixel/s

20.60 GTexel/s

Texture Rate

23.84 GTexel/s

-

659.2 GFLOPS

FP32 (float)

572.2 GFLOPS

-

FP64 (double)

23.84 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Jet

GPU Name

GK107

Jet XT

GPU Variant

N13P-GS

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

1.27 billion

56 mm²

Die Size

118 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

3.0

6.5 (5.1)

Shader Model

5.1

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