ATI Radeon E4690 MXM vs NVIDIA GeForce GT 640M Mac Edition

VS

ATI Radeon E4690 MXM

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Radeon E4690 MXM 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

ATI Radeon E4690 MXM 's Advantages

Lower TDP (30W vs 32W)

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Released 3 years and 8 months late

Larger VRAM bandwidth (40.00GB/s vs 22.40GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon E4690 MXM

0.384 TFLOPS

GeForce GT 640M Mac Edition +48%

0.572 TFLOPS

Radeon E4690 MXM

VS

GeForce GT 640M Mac Edition

Graphics Card

Jun 2009

Release Date

Feb 2013

Embedded

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

700 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

22.40GB/s

Bandwidth

40.00GB/s

Render Config

4

Compute Units

-

320

Shading Units

384

32

TMUs

32

8

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

5.960 GPixel/s

19.20 GTexel/s

Texture Rate

23.84 GTexel/s

-

384.0 GFLOPS

FP32 (float)

572.2 GFLOPS

-

FP64 (double)

23.84 GFLOPS

Board Design

30W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

RV730

GPU Name

GK107

RV730 XT E4690 (215-0729055)

GPU Variant

N13P-GS

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

1.27 billion

146 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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