ATI Mobility Radeon HD 4870 X2 vs AMD Radeon R9 M265X

VS

ATI Mobility Radeon HD 4870 X2 AMD Radeon R9 M265X

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4870 X2 and 2GB VRAM Radeon R9 M265X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 64.00GB/s)

160 additional rendering cores

AMD Radeon R9 M265X 's Advantages

Released 5 years and 2 months late

Boost Clock625MHz

More VRAM (2GB vs 1GB)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4870 X2 +10%

0.88 TFLOPS

Radeon R9 M265X

0.8 TFLOPS

Mobility Radeon HD 4870 X2

VS

Radeon R9 M265X

Graphics Card

Jan 2009

Release Date

Mar 2014

M9x

Generation

Gem System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

575 MHz

-

Boost Clock

625 MHz

700 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

89.60GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

10

Compute Units

10

800

Shading Units

640

40

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

8.800 GPixel/s

Pixel Rate

10.00 GPixel/s

22.00 GTexel/s

Texture Rate

25.00 GTexel/s

-

FP16 (half)

-

880.0 GFLOPS

FP32 (float)

800.0 GFLOPS

176.0 GFLOPS

FP64 (double)

50.00 GFLOPS

Graphics Processor

M98

GPU Name

Venus

M98 XT L2 (216-0732023)

GPU Variant

Venus PRO (216-0846009)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

1.5 billion

256 mm²

Die Size

123 mm²

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

CUDA

-

4.1

Shader Model

6.5 (5.1)

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