ATI Mobility Radeon HD 4850 X2 vs NVIDIA GeForce 820M

VS

ATI Mobility Radeon HD 4850 X2

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4850 X2 and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4850 X2 's Advantages

Larger VRAM bandwidth (89.60GB/s vs 28.83GB/s)

416 additional rendering cores

NVIDIA GeForce 820M 's Advantages

Released 6 years and 2 months late

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4850 X2 +28%

0.8 TFLOPS

GeForce 820M

0.622 TFLOPS

Mobility Radeon HD 4850 X2

VS

GeForce 820M

Graphics Card

Jan 2009

Release Date

Mar 2015

M9x

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

700 MHz

Memory Clock

901 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

89.60GB/s

Bandwidth

28.83GB/s

Render Config

10

Compute Units

-

800

Shading Units

384

40

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

8.000 GPixel/s

Pixel Rate

6.480 GPixel/s

20.00 GTexel/s

Texture Rate

25.92 GTexel/s

-

800.0 GFLOPS

FP32 (float)

622.1 GFLOPS

160.0 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

Unknown

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

M98

GPU Name

GK107

M98 L2 (216-0732019)

GPU Variant

-

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

1.27 billion

256 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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