ATI Mobility Radeon HD 3850 X2 vs AMD Radeon HD 7690M XT

VS

ATI Mobility Radeon HD 3850 X2

AMD Radeon HD 7690M XT

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3850 X2 and 2GB VRAM Radeon HD 7690M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7690M XT 's Advantages

Released 4 years and 7 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (57.60GB/s vs 48.00GB/s)

160 additional rendering cores

Lower TDP (25W vs 70W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3850 X2

0.371 TFLOPS

Radeon HD 7690M XT +87%

0.696 TFLOPS

Mobility Radeon HD 3850 X2

VS

Radeon HD 7690M XT

Graphics Card

Jun 2008

Release Date

Jan 2013

M8x

Generation

London

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

750 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

128bit

48.00GB/s

Bandwidth

57.60GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

480

16

TMUs

24

16

ROPs

8

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

9.280 GPixel/s

Pixel Rate

5.800 GPixel/s

9.280 GTexel/s

Texture Rate

17.40 GTexel/s

-

371.2 GFLOPS

FP32 (float)

696.0 GFLOPS

74.24 GFLOPS

FP64 (double)

-

Board Design

70W

TDP

25W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M88

GPU Name

Thames

-

GPU Variant

Thames XTX

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.716 billion

192 mm²

Die Size

104 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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