AMD Radeon E8870 vs AMD Radeon HD 7690M XT Rebrand

VS

AMD Radeon E8870

AMD Radeon HD 7690M XT Rebrand

We compared two Mobile platform GPUs: 4GB VRAM Radeon E8870 and 1024MB VRAM Radeon HD 7690M XT Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon E8870 's Advantages

Released 3 years and 8 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 51.20GB/s)

288 additional rendering cores

AMD Radeon HD 7690M XT Rebrand 's Advantages

Lower TDP (25W vs 75W)

Score

Benchmark

FP32 (float)

Radeon E8870 +120%

1.536 TFLOPS

Radeon HD 7690M XT Rebrand

0.696 TFLOPS

Radeon E8870

VS

Radeon HD 7690M XT Rebrand

Graphics Card

Sep 2015

Release Date

Jan 2012

Embedded

Generation

London

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

51.20GB/s

Render Config

12

Compute Units

6

-

768

Shading Units

480

48

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

5.800 GPixel/s

48.00 GTexel/s

Texture Rate

17.40 GTexel/s

-

1.536 TFLOPS

FP32 (float)

696.0 GFLOPS

96.00 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

25W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Saturn

GPU Name

Whistler

Saturn PRO

GPU Variant

Whistler XTX

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

0.716 billion

160 mm²

Die Size

104 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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