NVIDIA GeForce 620M vs AMD Radeon HD 7970M

VS

NVIDIA GeForce 620M

AMD Radeon HD 7970M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 620M and 2GB VRAM Radeon HD 7970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 620M 's Advantages

Lower TDP (15W vs 100W)

AMD Radeon HD 7970M 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 14.40GB/s)

1184 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 620M

0.24 TFLOPS

Radeon HD 7970M +806%

2.176 TFLOPS

GeForce 620M

VS

Radeon HD 7970M

Graphics Card

Mar 2012

Release Date

Apr 2012

GeForce 600M

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

900 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

153.6GB/s

Render Config

-

Compute Units

20

2

SM Count

-

96

Shading Units

1280

16

TMUs

80

8

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

27.20 GPixel/s

10.00 GTexel/s

Texture Rate

68.00 GTexel/s

-

240.0 GFLOPS

FP32 (float)

2.176 TFLOPS

20.00 GFLOPS

FP64 (double)

136.0 GFLOPS

Board Design

15W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GF117

GPU Name

Wimbledon

N13P-GLP

GPU Variant

Wimbledon XT (216-0836036)

Fermi 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.585 billion

Transistors

2.8 billion

116 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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