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Differences What are the advantages of each

Front view of Radeon HD 6230

Reasons to consider the
AMD Radeon HD 6230

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Slightly higher clock speed 650 MHz vs 575 MHz Around 15% higher clock speed
Lower TDP 19W vs 95W 5x lower TDP
Front view of Radeon HD 4830

Reasons to consider the
ATi Radeon HD 4830

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Higher memory bandwidth 57.6 GB/s vs 8 GB/s Around 7.2x higher memory bandwidth
Better PassMark score 964 vs 211 More than 4.5x better PassMark score
Higher effective memory clock speed 1,800 MHz vs 1,000 MHz 80% higher effective memory clock speed
Better floating-point performance 736 GFLOPS vs 104 GFLOPS More than 7x better floating-point performance
More render output processors 16 vs 2 14 more render output processors
Significantly wider memory bus 256 bit vs 64 bit 4x wider memory bus
More shading units 640 vs 80 560 more shading units
Significantly higher memory clock speed 900 MHz vs 500 MHz 80% higher memory clock speed
Slightly higher pixel rate 9.2 GPixel/s vs 1.3 GPixel/s More than 7x higher pixel rate
More texture mapping units 32 vs 8 24 more texture mapping units
More compute units 8 vs 2 6 more compute units

Benchmarks Real world tests of Radeon HD 6230 vs 4830

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Radeon HD 6230  vs 4830 

memory bandwidth Rate at which data can be read from or stored in onboard memory

Radeon HD 4830
57.6 GB/s

pixel rate Number of pixels a graphics card can render to the screen every second

Radeon HD 6230
1.3 GPixel/s
Radeon HD 4830
9.2 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

Radeon HD 6230
5.2 GTexel/s
Radeon HD 4830
18.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6230
104 GFLOPS
Radeon HD 4830
736 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

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