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

A40 PCIe

CORE STATE GA102

VRAM 48 GB

CLOCK SPEED 1740 MHz

TDP 300 W

BUS WIDTH 384 bit

ARCHITECTURE Ampere

nm

PROCESS 8 nm

LAUNCH DATE 2020

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

A40 PCIe

Core Specs

Shading Units

4,608

10,752 +133.3%

Shaders

4,608

10,752 +133.3%

TMUs

288

336 +16.7%

ROPs

128

112 -12.5%

Compute Units

72

—

SM Count

—

84

Clocks

Base Clock

1825 MHz

1305 MHz

Boost Clock

2250 MHz

1740 MHz

Game Clock

2015 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1812 MHz 14.5 Gbps effective

Memory

Memory Size

16 GB

48 GB

VRAM (MB)

16,384

49,152 +200.0%

Memory Type

GDDR6

GDDR6

Memory Bus

256 bit

384 bit

Bandwidth

512.0 GB/s

695.8 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

4 MB

6 MB

L3 Cache

128 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

288.0 GPixel/s

194.9 GPixel/s

Texture Rate

648.0 GTexel/s

584.6 GTexel/s

FP32 (TFLOPS)

20.74 TFLOPS

37.42 TFLOPS

FP64 (TFLOPS)

1,296.0 GFLOPS (1:16)

584.6 GFLOPS (1:64)

FP16 (TFLOPS)

41.47 TFLOPS (2:1)

37.42 TFLOPS (1:1)

AI/RT

RT Cores

72

84 +16.7%

Tensor Cores

—

336

Power

TDP

300 W

300 W

TDP (W)

300

300 0.0%

Suggested PSU

700 W

700 W

Power Connectors

2x 8-pin

8-pin EPS

Architecture

Architecture

RDNA 2.0

Ampere

GPU Name

Navi 21

GA102

Generation

Navi II (RX 6000)

Server Ampere (Axx)

Process Size

7 nm

8 nm

Transistors

26,800 million

28,300 million

Die Size

520 mm²

628 mm²

Foundry

TSMC

Samsung

Density

51.5M / mm²

45.1M / 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

—

8.6

Shader Model

6.8

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

267 mm 10.5 inches

267 mm 10.5 inches

Height

120 mm 4.7 inches

111 mm 4.4 inches

Outputs

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

3x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x16

PCIe 4.0 x16

Other

Launch Price

649 USD

—

Production

End-of-life

End-of-life

Predecessor

Navi

Tesla Turing

Successor

Navi III

Server Ada

View Radeon RX 6800 XT Details View A40 PCIe Details