AMD Radeon RX 7800 vs AMD Radeon RX 7990 XTX

VS

AMD Radeon RX 7800 AMD Radeon RX 7990 XTX

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 24GB VRAM Radeon RX 7990 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Lower TDP (300W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 29% (3599MHz vs 2800MHz)

More VRAM (24GB vs 16GB)

Larger VRAM bandwidth (1152GB/s vs 576.0GB/s)

2304 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7800

37.32 TFLOPS

Radeon RX 7990 XTX +137%

88.45 TFLOPS

Radeon RX 7800

VS

Radeon RX 7990 XTX

Graphics Card

Jan 2023

Release Date

Unknown

Navi III

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1800 MHz

Base Clock

2500 MHz

2800 MHz

Boost Clock

3599 MHz

2250 MHz

Memory Clock

3000 MHz

Memory

16GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

384bit

576.0GB/s

Bandwidth

1152GB/s

Render Config

-

SM Count

-

60

Compute Units

96

3840

Shading Units

6144

240

TMUs

384

128

ROPs

192

-

Tensor Cores

-

60

RT Cores

96

128 KB per Array

L1 Cache

256 KB per Array

4 MB

L2 Cache

6 MB

Theoretical Performance

358.4 GPixel/s

Pixel Rate

691.0 GPixel/s

672.0 GTexel/s

Texture Rate

1382 GTexel/s

86.02 TFLOPS

FP16 (half)

176.9 TFLOPS

43.01 TFLOPS

FP32 (float)

88.45 TFLOPS

1344 GFLOPS

FP64 (double)

2.764 TFLOPS

Graphics Processor

Navi 32

GPU Name

Navi 31

Navi 32 XT

GPU Variant

Navi 31 XTX+

RDNA 3.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

Unknown

Transistors

57.7 billion

346 mm²

Die Size

529 mm²

Board Design

300W

TDP

405W

700 W

Suggested PSU

800 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

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

2x 8-pin

Power Connectors

3x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.2

1.3

Vulkan

1.3

-

CUDA

-

6.7

Shader Model

6.7

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