AMD Radeon HD 6390 vs ATI Radeon HD 2600 XT X2

VS

AMD Radeon HD 6390

ATI Radeon HD 2600 XT X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 512MB VRAM Radeon HD 2600 XT X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Released 4 years late

More VRAM (1024GB vs 512GB)

200 additional rendering cores

ATI Radeon HD 2600 XT X2 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6390 +83%

0.352 TFLOPS

Radeon HD 2600 XT X2

0.192 TFLOPS

Radeon HD 6390

VS

Radeon HD 2600 XT X2

Graphics Card

Jul 2011

Release Date

Jul 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

500 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

25.60GB/s

Render Config

4

Compute Units

3

-

320

Shading Units

120

16

TMUs

8

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

3.200 GPixel/s

8.800 GTexel/s

Texture Rate

6.400 GTexel/s

-

352.0 GFLOPS

FP32 (float)

192.0 GFLOPS

-

Board Design

39W

TDP

Unknown

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

4x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Redwood

GPU Name

RV630

Redwood LE

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

0.627 billion

Transistors

0.39 billion

104 mm²

Die Size

153 mm²

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.0

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