AMD Radeon HD 8770M vs NVIDIA GeForce GT 650M Mac Edition

VS

AMD Radeon HD 8770M

NVIDIA GeForce GT 650M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 512MB VRAM GeForce GT 650M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Released 9 months late

Boost Clock825MHz

More VRAM (2GB vs 512GB)

NVIDIA GeForce GT 650M Mac Edition 's Advantages

Larger VRAM bandwidth (80.26GB/s vs 72.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8770M

0.633 TFLOPS

GeForce GT 650M Mac Edition +9%

0.691 TFLOPS

Radeon HD 8770M

VS

GeForce GT 650M Mac Edition

Graphics Card

Apr 2013

Release Date

Jul 2012

Solar System

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

775 MHz

Base Clock

-

825 MHz

Boost Clock

-

1125 MHz

Memory Clock

1254 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

80.26GB/s

Render Config

6

Compute Units

-

384

Shading Units

384

24

TMUs

32

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

6.600 GPixel/s

Pixel Rate

7.200 GPixel/s

19.80 GTexel/s

Texture Rate

28.80 GTexel/s

-

633.6 GFLOPS

FP32 (float)

691.2 GFLOPS

39.60 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

Unknown

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

GK107

Mars S3 XT (216-0842018)

GPU Variant

N13P-GT-W-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.27 billion

77 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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