AMD Radeon R9 390X vs ATI Radeon HD 2600 XT

VS

AMD Radeon R9 390X

ATI Radeon HD 2600 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 256MB VRAM ATI Radeon HD 2600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Released 8 years late

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (384.0GB/s vs 22.40GB/s)

2696 additional rendering cores

ATI Radeon HD 2600 XT 's Advantages

Lower TDP (45W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +2980%

5.914 TFLOPS

ATI Radeon HD 2600 XT

0.192 TFLOPS

Radeon R9 390X

VS

ATI Radeon HD 2600 XT

Graphics Card

Jun 2015

Release Date

Jun 2007

Pirate Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

700 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

22.40GB/s

Render Config

44

Compute Units

3

-

2816

Shading Units

120

176

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

64 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

3.200 GPixel/s

184.8 GTexel/s

Texture Rate

6.400 GTexel/s

-

5.914 TFLOPS

FP32 (float)

192.0 GFLOPS

739.2 GFLOPS

FP64 (double)

-

Board Design

275W

TDP

45W

600 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

RV630

Grenada XT (215-0880004)

GPU Variant

-

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

6.2 billion

Transistors

0.39 billion

438 mm²

Die Size

153 mm²

Graphics Features

12 (12_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

4.0

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