ATI Mobility Radeon HD 4650 vs NVIDIA GeForce GT 640M Mac Edition

VS

ATI Mobility Radeon HD 4650

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 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

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Released 4 years and 1 months late

Larger VRAM bandwidth (40.00GB/s vs 19.20GB/s)

64 additional rendering cores

Lower TDP (32W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650

0.32 TFLOPS

GeForce GT 640M Mac Edition +78%

0.572 TFLOPS

Mobility Radeon HD 4650

VS

GeForce GT 640M Mac Edition

Graphics Card

Jan 2009

Release Date

Feb 2013

M9x

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

600 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

64bit

19.20GB/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

4.000 GPixel/s

Pixel Rate

5.960 GPixel/s

16.00 GTexel/s

Texture Rate

23.84 GTexel/s

-

320.0 GFLOPS

FP32 (float)

572.2 GFLOPS

-

FP64 (double)

23.84 GFLOPS

Board Design

35W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

GK107

-

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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