AMD Radeon RX Vega 64 vs AMD Radeon RX 7990 XTX

VS

AMD Radeon RX Vega 64 AMD Radeon RX 7990 XTX

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX Vega 64 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 Vega 64 's Advantages

Lower TDP (295W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 133% (3599MHz vs 1546MHz)

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (1152GB/s vs 483.8GB/s)

2048 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX Vega 64

12.66 TFLOPS

Radeon RX 7990 XTX +598%

88.45 TFLOPS

Radeon RX Vega 64

VS

Radeon RX 7990 XTX

Graphics Card

Aug 2017

Release Date

Unknown

Vega

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1247 MHz

Base Clock

2500 MHz

1546 MHz

Boost Clock

3599 MHz

945 MHz

Memory Clock

3000 MHz

Memory

8GB

Memory Size

24GB

HBM2

Memory Type

GDDR6

2048bit

Memory Bus

384bit

483.8GB/s

Bandwidth

1152GB/s

Render Config

-

SM Count

-

64

Compute Units

96

4096

Shading Units

6144

256

TMUs

384

64

ROPs

192

-

Tensor Cores

-

RT Cores

96

16 KB (per CU)

L1 Cache

256 KB per Array

4 MB

L2 Cache

6 MB

Theoretical Performance

98.94 GPixel/s

Pixel Rate

691.0 GPixel/s

395.8 GTexel/s

Texture Rate

1382 GTexel/s

25.33 TFLOPS

FP16 (half)

176.9 TFLOPS

12.66 TFLOPS

FP32 (float)

88.45 TFLOPS

791.6 GFLOPS

FP64 (double)

2.764 TFLOPS

Graphics Processor

Vega 10

GPU Name

Navi 31

Vega 10 XT (215-0894200)

GPU Variant

Navi 31 XTX+

GCN 5.0

Architecture

RDNA 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

5 nm

12.5 billion

Transistors

57.7 billion

495 mm²

Die Size

529 mm²

Board Design

295W

TDP

405W

600 W

Suggested PSU

800 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

2x 8-pin

Power Connectors

3x 8-pin

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

6.4

Shader Model

6.7

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