AMD Radeon RX 6900 XTX vs ATI Radeon HD 4890

VS

AMD Radeon RX 6900 XTX ATI Radeon HD 4890

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 1024MB VRAM Radeon HD 4890 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 1GB)

Larger VRAM bandwidth (576.0GB/s vs 124.8GB/s)

4320 additional rendering cores

ATI Radeon HD 4890 's Advantages

Lower TDP (190W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +1733%

24.93 TFLOPS

Radeon HD 4890

1.36 TFLOPS

Radeon RX 6900 XTX

VS

Radeon HD 4890

Graphics Card

Unknown

Release Date

Apr 2009

Navi II

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

975 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

124.8GB/s

Render Config

-

SM Count

-

80

Compute Units

10

5120

Shading Units

800

320

TMUs

40

128

ROPs

16

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

13.60 GPixel/s

779.2 GTexel/s

Texture Rate

34.00 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

1360 GFLOPS

1.558 TFLOPS

FP64 (double)

272.0 GFLOPS

Graphics Processor

Navi 21

GPU Name

RV790

Navi 21 XTXH (215-121000247)

GPU Variant

RV790 XT (215-0758016)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

26.8 billion

Transistors

0.959 billion

520 mm²

Die Size

282 mm²

Board Design

330W

TDP

190W

700 W

Suggested PSU

450 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

4.1

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