AMD Radeon HD 8830M vs NVIDIA GeForce GT 640M Mac Edition

VS

AMD Radeon HD 8830M

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8830M 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 HD 8830M 's Advantages

Boost Clock625MHz

More VRAM (2GB vs 512GB)

256 additional rendering cores

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Larger VRAM bandwidth (40.00GB/s vs 32.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8830M +39%

0.8 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

Radeon HD 8830M

VS

GeForce GT 640M Mac Edition

Graphics Card

Apr 2013

Release Date

Feb 2013

Solar System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

575 MHz

Base Clock

-

625 MHz

Boost Clock

-

1000 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

32.00GB/s

Bandwidth

40.00GB/s

Render Config

10

Compute Units

-

640

Shading Units

384

40

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

5.960 GPixel/s

25.00 GTexel/s

Texture Rate

23.84 GTexel/s

-

800.0 GFLOPS

FP32 (float)

572.2 GFLOPS

50.00 GFLOPS

FP64 (double)

23.84 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Venus

GPU Name

GK107

Venus LE (216-0846030)

GPU Variant

N13P-GS

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.27 billion

123 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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