NVIDIA GeForce GTX 850A vs AMD Radeon HD 8790M

VS

NVIDIA GeForce GTX 850A

AMD Radeon HD 8790M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 2GB VRAM Radeon HD 8790M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Released 11 months late

Boost Clock has increased by 4% (936MHz vs 900MHz)

256 additional rendering cores

AMD Radeon HD 8790M 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 850A +73%

1.198 TFLOPS

Radeon HD 8790M

0.691 TFLOPS

GeForce GTX 850A

VS

Radeon HD 8790M

Graphics Card

Mar 2014

Release Date

Apr 2013

GeForce 800A

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

902 MHz

Base Clock

850 MHz

936 MHz

Boost Clock

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

6

-

640

Shading Units

384

40

TMUs

24

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

7.200 GPixel/s

37.44 GTexel/s

Texture Rate

21.60 GTexel/s

-

1198 GFLOPS

FP32 (float)

691.2 GFLOPS

37.44 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GM107

GPU Name

Mars

N15P-GT-A1

GPU Variant

Mars M2 XTX (216-0842036)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

0.95 billion

148 mm²

Die Size

77 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5 (5.1)

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