NVIDIA GeForce GT 640M Mac Edition vs ATI Mobility Radeon HD 4850

VS

NVIDIA GeForce GT 640M Mac Edition ATI Mobility Radeon HD 4850

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 1024MB VRAM Mobility Radeon HD 4850 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

ATI Mobility Radeon HD 4850 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (54.40GB/s vs 40.00GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M Mac Edition

0.572 TFLOPS

Mobility Radeon HD 4850 +40%

0.804 TFLOPS

GeForce GT 640M Mac Edition

VS

Mobility Radeon HD 4850

Graphics Card

Feb 2013

Release Date

Jan 2009

GeForce 600M

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

850 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

40.00GB/s

Bandwidth

54.40GB/s

Render Config

-

SM Count

-

Compute Units

10

384

Shading Units

800

32

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

5.960 GPixel/s

Pixel Rate

8.048 GPixel/s

23.84 GTexel/s

Texture Rate

20.12 GTexel/s

-

FP16 (half)

-

572.2 GFLOPS

FP32 (float)

804.8 GFLOPS

23.84 GFLOPS

FP64 (double)

161.0 GFLOPS

Graphics Processor

GK107

GPU Name

M98

N13P-GS

GPU Variant

M98 L2 (216-0732019)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.956 billion

118 mm²

Die Size

256 mm²

Board Design

32W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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