AMD Radeon R7 450 OEM vs AMD Radeon HD 7790

VS

AMD Radeon R7 450 OEM

AMD Radeon HD 7790

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 OEM and 1024MB VRAM Radeon HD 7790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 450 OEM 's Advantages

Released 3 years and 3 months late

More VRAM (2GB vs 1024GB)

Lower TDP (65W vs 85W)

AMD Radeon HD 7790 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 72.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 450 OEM

0.947 TFLOPS

Radeon HD 7790 +89%

1.792 TFLOPS

Radeon R7 450 OEM

VS

Radeon HD 7790

Graphics Card

Jun 2016

Release Date

Mar 2013

Arctic Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

96.00GB/s

Render Config

8

Compute Units

14

-

512

Shading Units

896

32

TMUs

56

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

14.80 GPixel/s

Pixel Rate

16.00 GPixel/s

29.60 GTexel/s

Texture Rate

56.00 GTexel/s

-

947.2 GFLOPS

FP32 (float)

1.792 TFLOPS

59.20 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

65W

TDP

85W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

Bonaire

Cape Verde PRO2

GPU Variant

Bonaire XT (215-0839039)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

2.08 billion

123 mm²

Die Size

160 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.0

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

6.3

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