AMD Radeon HD 8790M vs AMD Radeon R9 M275X

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8790M and 2GB VRAM Radeon R9 M275X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M275X 's Advantages

Released 9 months late

Boost Clock has increased by 3% (925MHz vs 900MHz)

Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8790M

0.691 TFLOPS

Radeon R9 M275X +71%

1.184 TFLOPS

Radeon HD 8790M

VS

Radeon R9 M275X

Graphics Card

Apr 2013

Release Date

Jan 2014

Solar System

Generation

Gem System

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

900 MHz

Boost Clock

925 MHz

1000 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

6

Compute Units

10

384

Shading Units

640

24

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

14.80 GPixel/s

21.60 GTexel/s

Texture Rate

37.00 GTexel/s

-

FP16 (half)

-

691.2 GFLOPS

FP32 (float)

1184 GFLOPS

43.20 GFLOPS

FP64 (double)

74.00 GFLOPS

Graphics Processor

Mars

GPU Name

Venus

Mars M2 XTX (216-0842036)

GPU Variant

Venus XTX (216-0846033)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.5 billion

77 mm²

Die Size

123 mm²

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

CUDA

-

6.5 (5.1)

Shader Model

6.5 (5.1)

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