AMD Radeon HD 7950M vs NVIDIA GeForce GT 645M

VS

AMD Radeon HD 7950M NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7950M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950M 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 28.80GB/s)

896 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Released 6 months late

Lower TDP (32W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 7950M +229%

1.792 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon HD 7950M

VS

GeForce GT 645M

Graphics Card

Apr 2012

Release Date

Oct 2012

London

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1000 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

20

Compute Units

-

1280

Shading Units

384

80

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

Theoretical Performance

22.40 GPixel/s

Pixel Rate

5.672 GPixel/s

56.00 GTexel/s

Texture Rate

22.69 GTexel/s

-

FP16 (half)

-

1.792 TFLOPS

FP32 (float)

544.5 GFLOPS

-

FP64 (double)

22.69 GFLOPS

Graphics Processor

Wimbledon

GPU Name

GK107

Wimbledon PRO

GPU Variant

N13P-GS

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

1.27 billion

212 mm²

Die Size

118 mm²

Board Design

75W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

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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