AMD Radeon R7 265X OEM vs AMD Radeon HD 6450 OEM

VS

AMD Radeon R7 265X OEM

AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 265X OEM and 512MB VRAM Radeon HD 6450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R7 265X OEM 's Advantages

Released 3 years and 6 months late

Boost Clock925MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 8.528GB/s)

1120 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R7 265X OEM +1084%

2.368 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon R7 265X OEM

VS

Radeon HD 6450 OEM

Graphics Card

Aug 2014

Release Date

Feb 2011

Volcanic Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

533 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

179.2GB/s

Bandwidth

8.528GB/s

Render Config

20

Compute Units

2

-

1280

Shading Units

160

80

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.500 GPixel/s

74.00 GTexel/s

Texture Rate

5.000 GTexel/s

-

2.368 TFLOPS

FP32 (float)

200.0 GFLOPS

148.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

18W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

Caicos

Curacao PRO (215-0848000)

GPU Variant

Junbonator

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

0.37 billion

212 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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