NVIDIA GeForce GTX 680 vs AMD Radeon RX 6900 XT

VS

NVIDIA GeForce GTX 680

AMD Radeon RX 6900 XT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 and 16GB VRAM Radeon RX 6900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680 's Advantages

Lower TDP (195W vs 300W)

AMD Radeon RX 6900 XT 's Advantages

Released 8 years and 7 months late

Boost Clock has increased by 113% (2250MHz vs 1058MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 192.3GB/s)

3584 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 680

3.25 TFLOPS

Radeon RX 6900 XT +608%

23.04 TFLOPS

3DMark Time Spy

GeForce GTX 680

1999

Radeon RX 6900 XT +947%

20932

GeForce GTX 680

VS

Radeon RX 6900 XT

Graphics Card

Mar 2012

Release Date

Oct 2020

GeForce 600

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1006 MHz

Base Clock

1825 MHz

1058 MHz

Boost Clock

2250 MHz

1502 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

192.3GB/s

Bandwidth

512.0GB/s

Render Config

-

Compute Units

80

-

1536

Shading Units

5120

128

TMUs

320

32

ROPs

128

-

RT Cores

80

16 KB (per SMX)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

33.86 GPixel/s

Pixel Rate

288.0 GPixel/s

135.4 GTexel/s

Texture Rate

720.0 GTexel/s

-

FP16 (half)

46.08 TFLOPS

3.250 TFLOPS

FP32 (float)

23.04 TFLOPS

135.4 GFLOPS

FP64 (double)

1440 GFLOPS

Board Design

195W

TDP

300W

450 W

Suggested PSU

700 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

GK104

GPU Name

Navi 21

GK104-400-A2

GPU Variant

Navi 21 XTX (215-121000167)

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

3.54 billion

Transistors

26.8 billion

294 mm²

Die Size

520 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.5

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