AMD Radeon R9 M275X vs NVIDIA GeForce 805A

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M275X and 1024MB VRAM GeForce 805A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M275X 's Advantages

Boost Clock has increased by 22% (925MHz vs 758MHz)

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (72.00GB/s vs 16.02GB/s)

448 additional rendering cores

NVIDIA GeForce 805A 's Advantages

Released 6 months late

Score

Benchmark

FP32 (float)

Radeon R9 M275X +306%

1.184 TFLOPS

GeForce 805A

0.291 TFLOPS

Radeon R9 M275X

VS

GeForce 805A

Graphics Card

Jan 2014

Release Date

Jul 2014

Gem System

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

719 MHz

925 MHz

Boost Clock

758 MHz

1125 MHz

Memory Clock

1001 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

16.02GB/s

Render Config

-

SM Count

-

10

Compute Units

-

640

Shading Units

192

40

TMUs

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

Theoretical Performance

14.80 GPixel/s

Pixel Rate

6.064 GPixel/s

37.00 GTexel/s

Texture Rate

12.13 GTexel/s

-

FP16 (half)

-

1184 GFLOPS

FP32 (float)

291.1 GFLOPS

74.00 GFLOPS

FP64 (double)

12.13 GFLOPS

Graphics Processor

Venus

GPU Name

GK208

Venus XTX (216-0846033)

GPU Variant

-

GCN 1.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

1.02 billion

123 mm²

Die Size

87 mm²

Board Design

Unknown

TDP

15W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.5

6.5 (5.1)

Shader Model

5.1

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