AMD Radeon HD 8790M vs ATI Mobility Radeon HD 4860

VS

AMD Radeon HD 8790M ATI Mobility Radeon HD 4860

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8790M and 1024MB VRAM Mobility Radeon HD 4860 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8790M 's Advantages

Released 4 years and 1 months late

Boost Clock900MHz

More VRAM (2GB vs 1GB)

ATI Mobility Radeon HD 4860 's Advantages

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8790M

0.691 TFLOPS

Mobility Radeon HD 4860 +20%

0.832 TFLOPS

Radeon HD 8790M

VS

Mobility Radeon HD 4860

Graphics Card

Apr 2013

Release Date

Mar 2009

Solar System

Generation

M9x

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

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

6

Compute Units

8

384

Shading Units

640

24

TMUs

32

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

10.40 GPixel/s

21.60 GTexel/s

Texture Rate

20.80 GTexel/s

-

FP16 (half)

-

691.2 GFLOPS

FP32 (float)

832.0 GFLOPS

43.20 GFLOPS

FP64 (double)

166.4 GFLOPS

Graphics Processor

Mars

GPU Name

M97

Mars M2 XTX (216-0842036)

GPU Variant

M97 M2 XT (216-0731000)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.95 billion

Transistors

0.826 billion

77 mm²

Die Size

137 mm²

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

-

6.5 (5.1)

Shader Model

4.1

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