AMD Radeon HD 8950M vs NVIDIA GeForce GT 645M

VS

AMD Radeon HD 8950M

NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8950M 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 8950M 's Advantages

Released 7 months late

Larger VRAM bandwidth (88.00GB/s vs 28.80GB/s)

384 additional rendering cores

NVIDIA GeForce GT 645M 's Advantages

Lower TDP (32W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8950M +203%

1.651 TFLOPS

GeForce GT 645M

0.544 TFLOPS

Radeon HD 8950M

VS

GeForce GT 645M

Graphics Card

May 2013

Release Date

Oct 2012

Solar System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

88.00GB/s

Bandwidth

28.80GB/s

Render Config

12

Compute Units

-

768

Shading Units

384

48

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.20 GPixel/s

Pixel Rate

5.672 GPixel/s

51.60 GTexel/s

Texture Rate

22.69 GTexel/s

-

1.651 TFLOPS

FP32 (float)

544.5 GFLOPS

103.2 GFLOPS

FP64 (double)

22.69 GFLOPS

Board Design

100W

TDP

32W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Saturn

GPU Name

GK107

Saturn XT

GPU Variant

N13P-GS

GCN 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

1.27 billion

160 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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