AMD Radeon RX 7990 XTX vs NVIDIA GeForce GT 620

VS

AMD Radeon RX 7990 XTX

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7990 XTX and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock3599MHz

More VRAM (24GB vs 1024GB)

Larger VRAM bandwidth (1152GB/s vs 14.40GB/s)

6048 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 405W)

Score

Benchmark

FP32 (float)

Radeon RX 7990 XTX +32781%

88.45 TFLOPS

GeForce GT 620

0.269 TFLOPS

Radeon RX 7990 XTX

VS

GeForce GT 620

Graphics Card

Unknown

Release Date

May 2012

Navi III

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2500 MHz

Base Clock

-

3599 MHz

Boost Clock

-

3000 MHz

Memory Clock

900 MHz

Memory

24GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

384bit

Memory Bus

64bit

1152GB/s

Bandwidth

14.40GB/s

Render Config

96

Compute Units

-

SM Count

2

6144

Shading Units

96

384

TMUs

16

192

ROPs

4

-

96

RT Cores

-

256 KB per Array

L1 Cache

64 KB (per SM)

6 MB

L2 Cache

128 KB

192 MB

L3 Cache

-

Theoretical Performance

691.0 GPixel/s

Pixel Rate

2.800 GPixel/s

1382 GTexel/s

Texture Rate

11.20 GTexel/s

176.9 TFLOPS

FP16 (half)

-

88.45 TFLOPS

FP32 (float)

268.8 GFLOPS

2.764 TFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

405W

TDP

49W

800 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

3x 8-pin

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

GF108

Navi 31 XTX+

GPU Variant

GF108-100-KB-A1

RDNA 3.0

Architecture

Fermi

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

57.7 billion

Transistors

0.585 billion

529 mm²

Die Size

116 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

2.1

6.7

Shader Model

5.1

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