AMD Radeon RX 7900 XT vs NVIDIA GeForce 6800 XT

VS

AMD Radeon RX 7900 XT

NVIDIA GeForce 6800 XT

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 256MB VRAM GeForce 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Released 17 years and 2 months late

Boost Clock2394MHz

More VRAM (20GB vs 256GB)

Larger VRAM bandwidth (800.0GB/s vs 38.40GB/s)

5376 additional rendering cores

Score

Radeon RX 7900 XT

VS

GeForce 6800 XT

Graphics Card

Nov 2022

Release Date

Sep 2005

Navi III

Generation

GeForce 6 AGP

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

AGP 8x

Clock Speeds

1387 MHz

Base Clock

-

2394 MHz

Boost Clock

-

2500 MHz

Memory Clock

600 MHz

Memory

20GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

320bit

Memory Bus

256bit

800.0GB/s

Bandwidth

38.40GB/s

Render Config

84

Compute Units

-

5376

Shading Units

-

336

TMUs

12

192

ROPs

8

-

84

RT Cores

-

256 KB per Array

L1 Cache

-

6 MB

L2 Cache

-

80 MB

L3 Cache

-

Theoretical Performance

459.6 GPixel/s

Pixel Rate

3.600 GPixel/s

804.4 GTexel/s

Texture Rate

5.400 GTexel/s

103.0 TFLOPS

FP16 (half)

-

51.48 TFLOPS

FP32 (float)

-

1.609 TFLOPS

FP64 (double)

-

Board Design

300W

TDP

Unknown

700 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

1x Molex

Graphics Processor

Navi 31

GPU Name

NV42

Navi 31 XT (215-145000156)

GPU Variant

6800 XT

RDNA 3.0

Architecture

Curie

TSMC

Foundry

TSMC

5 nm

Process Size

110 nm

57.7 billion

Transistors

0.202 billion

529 mm²

Die Size

222 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0c (9_3)

4.6

OpenGL

2.0 (full) 2.1 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

3.0

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