AMD Radeon HD 6790 vs AMD Radeon RX 7990 XTX

VS

AMD Radeon HD 6790

AMD Radeon RX 7990 XTX

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 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 HD 6790 's Advantages

Lower TDP (150W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock3599MHz

More VRAM (24GB vs 1024GB)

Larger VRAM bandwidth (1152GB/s vs 134.4GB/s)

5344 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6790

1.344 TFLOPS

Radeon RX 7990 XTX +6481%

88.45 TFLOPS

Radeon HD 6790

VS

Radeon RX 7990 XTX

Graphics Card

Apr 2011

Release Date

Unknown

Northern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2500 MHz

-

Boost Clock

3599 MHz

1050 MHz

Memory Clock

3000 MHz

Memory

1024MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

1152GB/s

Render Config

10

Compute Units

96

-

800

Shading Units

6144

40

TMUs

384

16

ROPs

192

-

RT Cores

96

8 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

-

L3 Cache

192 MB

Theoretical Performance

13.44 GPixel/s

Pixel Rate

691.0 GPixel/s

33.60 GTexel/s

Texture Rate

1382 GTexel/s

-

FP16 (half)

176.9 TFLOPS

1344 GFLOPS

FP32 (float)

88.45 TFLOPS

-

FP64 (double)

2.764 TFLOPS

Board Design

150W

TDP

405W

450 W

Suggested PSU

800 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

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

2x 6-pin

Power Connectors

3x 8-pin

Graphics Processor

Barts

GPU Name

Navi 31

Barts LE (215-0798002)

GPU Variant

Navi 31 XTX+

TeraScale 2

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

5 nm

1.7 billion

Transistors

57.7 billion

255 mm²

Die Size

529 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.2

N/A

Vulkan

1.3

-

5.0

Shader Model

6.7

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