AMD Radeon HD 8770M vs AMD Radeon HD 7670M

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8770M and 1024MB VRAM Radeon HD 7670M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8770M 's Advantages

Released 1 years and 2 months late

Boost Clock825MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (72.00GB/s vs 28.80GB/s)

AMD Radeon HD 7670M 's Advantages

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8770M +9%

0.633 TFLOPS

Radeon HD 7670M

0.576 TFLOPS

Radeon HD 8770M

VS

Radeon HD 7670M

Graphics Card

Apr 2013

Release Date

Feb 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

775 MHz

Base Clock

-

825 MHz

Boost Clock

-

1125 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

6

Compute Units

6

384

Shading Units

480

24

TMUs

24

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

6.600 GPixel/s

Pixel Rate

9.600 GPixel/s

19.80 GTexel/s

Texture Rate

14.40 GTexel/s

-

FP16 (half)

-

633.6 GFLOPS

FP32 (float)

576.0 GFLOPS

39.60 GFLOPS

FP64 (double)

-

Graphics Processor

Mars

GPU Name

Thames

Mars S3 XT (216-0842018)

GPU Variant

Thames XT (216-0833000)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.716 billion

77 mm²

Die Size

104 mm²

Board Design

Unknown

TDP

20W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

5.0

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