AMD Radeon HD 8670M vs AMD Radeon HD 7490M

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670M 's Advantages

Released 1 years and 2 months late

Boost Clock975MHz

160 additional rendering cores

AMD Radeon HD 7490M 's Advantages

Larger VRAM bandwidth (30.40GB/s vs 14.40GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 8670M +143%

0.624 TFLOPS

Radeon HD 7490M

0.256 TFLOPS

Radeon HD 8670M

VS

Radeon HD 7490M

Graphics Card

Mar 2013

Release Date

Jan 2012

Solar System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

900 MHz

Memory Clock

950 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

30.40GB/s

Render Config

-

SM Count

-

5

Compute Units

2

320

Shading Units

160

20

TMUs

8

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

128 KB

Theoretical Performance

7.800 GPixel/s

Pixel Rate

3.200 GPixel/s

19.50 GTexel/s

Texture Rate

6.400 GTexel/s

-

FP16 (half)

-

624.0 GFLOPS

FP32 (float)

256.0 GFLOPS

39.00 GFLOPS

FP64 (double)

-

Graphics Processor

Sun

GPU Name

Seymour

Sun S3 XT (216-0841009)

GPU Variant

Seymour XTX (216-0810005)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.69 billion

Transistors

0.37 billion

56 mm²

Die Size

67 mm²

Board Design

Unknown

TDP

9W

-

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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