GPU Comparison

A

AMD

RADEON

AMD Radeon RX 6800 XT

CORE STATE Navi 21

VRAM 16 GB

CLOCK SPEED 2250 MHz

TDP 300 W

BUS WIDTH 256 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2020

VS

NVIDIA

GEFORCE

GeForce RTX 4090 Max-Q

CORE STATE AD103

VRAM 16 GB

CLOCK SPEED 1455 MHz

TDP 80 W

BUS WIDTH 256 bit

ARCHITECTURE Ada Lovelace

nm

PROCESS 5 nm

LAUNCH DATE 2023

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

3,689

N/A

geekbench_metal

199,366

N/A

geekbench_opencl

154,506

N/A

geekbench_vulkan

152,200

N/A

passmark_directx_10

155

N/A

passmark_directx_11

264

N/A

passmark_directx_12

100

N/A

passmark_directx_9

265

N/A

passmark_g2d

1,030

N/A

passmark_g3d

24,980

N/A

passmark_gpu_compute

13,245

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6800 XT

RTX 4090 Max-Q

Core Specs

Shading Units

4,608

9,728 +111.1%

Shaders

4,608

9,728 +111.1%

TMUs

288

304 +5.6%

ROPs

128

112 -12.5%

Compute Units

72

—

SM Count

—

76

Clocks

Base Clock

1825 MHz

930 MHz

Boost Clock

2250 MHz

1455 MHz

Game Clock

2015 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

2250 MHz 18 Gbps effective

Memory

Memory Size

16 GB

16 GB

VRAM (MB)

16,384

16,384 0.0%

Memory Type

GDDR6

GDDR6

Memory Bus

256 bit

256 bit

Bandwidth

512.0 GB/s

576.0 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

4 MB

64 MB

L3 Cache

128 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

288.0 GPixel/s

163.0 GPixel/s

Texture Rate

648.0 GTexel/s

442.3 GTexel/s

FP32 (TFLOPS)

20.74 TFLOPS

28.31 TFLOPS

FP64 (TFLOPS)

1,296.0 GFLOPS (1:16)

442.3 GFLOPS (1:64)

FP16 (TFLOPS)

41.47 TFLOPS (2:1)

28.31 TFLOPS (1:1)

AI/RT

RT Cores

72

76 +5.6%

Tensor Cores

—

304

Power

TDP

300 W

80 W

TDP (W)

300

80 -73.3%

Suggested PSU

700 W

—

Power Connectors

2x 8-pin

None

Architecture

Architecture

RDNA 2.0

Ada Lovelace

GPU Name

Navi 21

AD103

Generation

Navi II (RX 6000)

GeForce 40 Mobile

Process Size

7 nm

5 nm

Transistors

26,800 million

45,900 million

Die Size

520 mm²

379 mm²

Foundry

TSMC

TSMC

Density

51.5M / mm²

121.1M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.4

1.4

OpenCL

2.1

3.0

CUDA

—

8.9

Shader Model

6.8

6.8

Physical

Slot Width

Dual-slot

IGP

Length

267 mm 10.5 inches

—

Height

120 mm 4.7 inches

—

Outputs

1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C

Portable Device Dependent

Bus Interface

PCIe 4.0 x16

PCIe 4.0 x16

Other

Launch Price

649 USD

—

Production

End-of-life

Active

Predecessor

Navi

GeForce 30 Mobile

Successor

Navi III

GeForce 50 Mobile

View Radeon RX 6800 XT Details View GeForce RTX 4090 Max-Q Details