AMD Radeon HD 7730M vs NVIDIA GeForce GT 640M

VS

AMD Radeon HD 7730M

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7730M and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7730M 's Advantages

Boost Clock675MHz

128 additional rendering cores

Lower TDP (25W vs 32W)

Score

Benchmark

FP32 (float)

Radeon HD 7730M +43%

0.691 TFLOPS

GeForce GT 640M

0.48 TFLOPS

Radeon HD 7730M

VS

GeForce GT 640M

Graphics Card

Apr 2012

Release Date

Mar 2012

London

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

575 MHz

Base Clock

-

675 MHz

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

28.80GB/s

Render Config

8

Compute Units

-

512

Shading Units

384

32

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

5.000 GPixel/s

21.60 GTexel/s

Texture Rate

20.00 GTexel/s

-

691.2 GFLOPS

FP32 (float)

480.0 GFLOPS

43.20 GFLOPS

FP64 (double)

20.00 GFLOPS

Board Design

25W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Chelsea

GPU Name

GK107

Chelsea LE (216-0834065)

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

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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