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Radeon HD 4890 1GB vs Radeon RX 6500 XT

Intro

The Radeon HD 4890 1GB features core speeds of 1000 MHz on the GPU, and 975 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon RX 6500 XT, which has core speeds of 2200 MHz on the GPU, and 2250 MHz on the 4096 MB of GDDR6 RAM. It features 1024 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT 107 Watts
Radeon HD 4890 1GB 190 Watts
Difference: 83 Watts (78%)

Memory Bandwidth

The Radeon RX 6500 XT, in theory, should perform a bit faster than the Radeon HD 4890 1GB overall. (explain)

Radeon RX 6500 XT 147456 MB/sec
Radeon HD 4890 1GB 124800 MB/sec
Difference: 22656 (18%)

Texel Rate

The Radeon RX 6500 XT is much (about 252%) better at anisotropic filtering than the Radeon HD 4890 1GB. (explain)

Radeon RX 6500 XT 140800 Mtexels/sec
Radeon HD 4890 1GB 40000 Mtexels/sec
Difference: 100800 (252%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6500 XT is superior to the Radeon HD 4890 1GB, by far. (explain)

Radeon RX 6500 XT 70400 Mpixels/sec
Radeon HD 4890 1GB 16000 Mpixels/sec
Difference: 54400 (340%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 4890 1GB

Amazon.com

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Radeon RX 6500 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 4890 1GB Radeon RX 6500 XT
Manufacturer AMD AMD
Year Apr 2, 2009 January 2022
Code Name RV790 XT Navi 24 XT
Memory 1024 MB 4096 MB
Core Speed 1000 MHz 2200 MHz
Memory Speed 3900 MHz 4500 GB/s
Power (Max TDP) 190 watts 107 watts
Bandwidth 124800 MB/sec 147456 MB/sec
Texel Rate 40000 Mtexels/sec 140800 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 70400 Mpixels/sec
Unified Shaders 800(160x5) 1024
Texture Mapping Units 40 64
Render Output Units 16 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 64-bit
Fab Process 55 nm 6 nm
Transistors 959 million 5400 million
Bus PCIe 2.0 x16 PCIe 4.0 x16
DirectX Version DirectX 10.1 DirectX 12
OpenGL Version OpenGL 3.0 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4890 1GB

Amazon.com

Check prices at:

Radeon RX 6500 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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