AMD Radeon HD 8790M vs AMD Radeon HD 6470M

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We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8790M and 512MB VRAM Radeon HD 6470M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8790M 's Advantages

Released 2 years and 3 months late

Boost Clock900MHz

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8790M +208%

0.691 TFLOPS

Radeon HD 6470M

0.224 TFLOPS

Radeon HD 8790M

VS

Radeon HD 6470M

Graphics Card

Apr 2013

Release Date

Jan 2011

Solar System

Generation

Vancouver

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

900 MHz

Boost Clock

-

1000 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

-

6

Compute Units

2

384

Shading Units

160

24

TMUs

8

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

2.800 GPixel/s

21.60 GTexel/s

Texture Rate

5.600 GTexel/s

-

FP16 (half)

-

691.2 GFLOPS

FP32 (float)

224.0 GFLOPS

43.20 GFLOPS

FP64 (double)

-

Graphics Processor

Mars

GPU Name

Seymour

Mars M2 XTX (216-0842036)

GPU Variant

Seymour XT (216-0810084)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.37 billion

77 mm²

Die Size

67 mm²

Board Design

Unknown

TDP

25W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

None

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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