AMD Radeon RX 7900 XT vs NVIDIA A40 PCIe

VS

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 48GB VRAM A40 PCIe 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 2 years and 1 months late

Boost Clock has increased by 38% (2394MHz vs 1740MHz)

Larger VRAM bandwidth (800.0GB/s vs 695.8GB/s)

NVIDIA A40 PCIe 's Advantages

More VRAM (48GB vs 20GB)

5376 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +37%

51.48 TFLOPS

A40 PCIe

37.42 TFLOPS

Blender

Radeon RX 7900 XT +3%

4310

A40 PCIe

4170

Radeon RX 7900 XT

VS

A40 PCIe

Graphics Card

Nov 2022

Release Date

Oct 2020

Navi III

Generation

Tesla

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1387 MHz

Base Clock

1305 MHz

2394 MHz

Boost Clock

1740 MHz

2500 MHz

Memory Clock

1812 MHz

Memory

20GB

Memory Size

48GB

GDDR6

Memory Type

GDDR6

320bit

Memory Bus

384bit

800.0GB/s

Bandwidth

695.8GB/s

Render Config

-

SM Count

84

Compute Units

-

5376

Shading Units

10752

336

TMUs

336

192

ROPs

112

-

Tensor Cores

336

84

RT Cores

84

256 KB per Array

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

6 MB

Theoretical Performance

459.6 GPixel/s

Pixel Rate

194.9 GPixel/s

804.4 GTexel/s

Texture Rate

584.6 GTexel/s

103.0 TFLOPS

FP16 (half)

37.42 TFLOPS

51.48 TFLOPS

FP32 (float)

37.42 TFLOPS

1.609 TFLOPS

FP64 (double)

584.6 GFLOPS

Graphics Processor

Navi 31

GPU Name

GA102

Navi 31 XT (215-145000156)

GPU Variant

-

RDNA 3.0

Architecture

Ampere

TSMC

Foundry

Samsung

5 nm

Process Size

8 nm

57.7 billion

Transistors

28.3 billion

529 mm²

Die Size

628 mm²

Board Design

300W

TDP

300W

700 W

Suggested PSU

700 W

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

Outputs

3x DisplayPort 1.4a

2x 8-pin

Power Connectors

8-pin EPS

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.6

6.7

Shader Model

6.6

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