AMD Radeon RX 6800 XT vs ATI Radeon HD 2600 XT Mac Edition

VS

AMD Radeon RX 6800 XT

ATI Radeon HD 2600 XT Mac Edition

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 256MB VRAM Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Released 12 years and 8 months late

Boost Clock2250MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (512.0GB/s vs 25.60GB/s)

4488 additional rendering cores

ATI Radeon HD 2600 XT Mac Edition 's Advantages

Lower TDP (45W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +12245%

20.74 TFLOPS

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon RX 6800 XT

VS

Radeon HD 2600 XT Mac Edition

Graphics Card

Oct 2020

Release Date

Feb 2008

Navi II

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2250 MHz

Boost Clock

-

2000 MHz

Memory Clock

800 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

128bit

512.0GB/s

Bandwidth

25.60GB/s

Render Config

72

Compute Units

3

-

4608

Shading Units

120

288

TMUs

8

128

ROPs

4

-

72

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

64 KB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

2.800 GPixel/s

648.0 GTexel/s

Texture Rate

5.600 GTexel/s

41.47 TFLOPS

FP16 (half)

-

20.74 TFLOPS

FP32 (float)

168.0 GFLOPS

1296 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

45W

700 W

Suggested PSU

200 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

2x DVI

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

RV630

Navi 21 XT (215-121000177)

GPU Variant

-

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

65 nm

26.8 billion

Transistors

0.39 billion

520 mm²

Die Size

153 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.0

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