AMD Radeon RX 6800 vs ATI Radeon HD 4890

VS

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 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 6800 's Advantages

Released 11 years and 6 months late

Boost Clock2105MHz

More VRAM (16GB vs 1GB)

Larger VRAM bandwidth (512.0GB/s vs 124.8GB/s)

3040 additional rendering cores

ATI Radeon HD 4890 's Advantages

Lower TDP (190W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +1088%

16.17 TFLOPS

Radeon HD 4890

1.36 TFLOPS

Radeon RX 6800

VS

Radeon HD 4890

Graphics Card

Oct 2020

Release Date

Apr 2009

Navi II

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1700 MHz

Base Clock

-

2105 MHz

Boost Clock

-

2000 MHz

Memory Clock

975 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

124.8GB/s

Render Config

-

SM Count

-

60

Compute Units

10

3840

Shading Units

800

240

TMUs

40

96

ROPs

16

-

Tensor Cores

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

Theoretical Performance

202.1 GPixel/s

Pixel Rate

13.60 GPixel/s

505.2 GTexel/s

Texture Rate

34.00 GTexel/s

32.33 TFLOPS

FP16 (half)

-

16.17 TFLOPS

FP32 (float)

1360 GFLOPS

1010 GFLOPS

FP64 (double)

272.0 GFLOPS

Graphics Processor

Navi 21

GPU Name

RV790

Navi 21 XL (215-121000187)

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

250W

TDP

190W

600 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

Related GPU Comparisons

1

AMD Radeon RX 6800 vs NVIDIA GeForce RTX 4070

2

AMD Radeon RX 6800 vs NVIDIA GeForce RTX 4060 Ti 8 GB

3

AMD Radeon RX 6800 vs AMD Radeon RX 6700 XT

4

AMD Radeon RX 6800 vs AMD Radeon R7 250XE

5

AMD Radeon RX 6800 vs AMD Radeon R5 235X OEM

6

AMD Radeon RX 6800 vs AMD Radeon HD 7570 OEM

7

AMD Radeon RX 6800 vs NVIDIA GeForce RTX 3060 Ti

8

AMD Radeon RX 6800 vs AMD Radeon RX 560

9

AMD Radeon RX 6800 vs AMD Radeon RX 560D

10

AMD Radeon RX 6800 vs AMD Radeon R9 390 X2

Related News

1

Apple's 2025 OS in Development: iOS 19 Codename 'Luck'

2

Apple's AI is Memory Hungry! The Entire iPhone 16 Lineup Comes with 8GB RAM

3

Noctua Announce NH-D15 G2 Air Cooler and NF-A14x25r G2 Fan

4

The P-Cores and E-Cores in Arrow Lake Will Be Interleaved, Reducing Core Communication Latency and Improving Heat Dissipation

5

Changes in Intel Arrow Lake P/E Core Layout: Two Major Benefits

6

Time to Step Up, AMD and Intel! Nvidia Faces Antitrust Lawsuits in France, US, and EU

7

Intel Arrow Lake-S Features Dual Direct M.2 Slots: One PCIe 5.0 x4 and One PCIe 4.0 x4

8

AMD Ryzen 9000X3D Series to Feature Fully Unlocked Overclocking; DDR5-6400: The 'Sweet Spot' for Zen 5 Memory Speeds

9

Intel Z890 Motherboard Specs Leaked: Farewell to DDR4 Memory

10

AMD Ryzen 9000 Series Now Available for Pre-order in Europe: 9950X Priced at €660, Shipping by August 2