Sapphire HD 4830 Video Card Review

Hardware Secrets Golden Award

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To make the comparison between Radeon HD 4830 and the other video cards we included in this review easier, we compiled the table below comparing the main specs from these cards. If you want to compare the specs of the reviewed video card to any other video card not included in the table below, just take a look at our NVIDIA Chips Comparison Table and on our AMD ATI Chips Comparison Table.

GPU Core Clock Shader Clock Processors Memory Clock Memory Interface Memory Transfer Rate Memory Price
GeForce GTX 280 602 MHz 1,296 MHz 240 1,107 MHz 512-bit 141.7 GB/s 1 GB GDDR3 USD 405 – 470
GeForce GTX 260 576 MHz 1,242 MHz 192 1,000 MHz 448-bit 112 GB/s 896 MB GDDR3 USD 240 – 310
GeForce 9800 GX2 600 MHz 1,500 MHz 128 1,000 MHz 256-bit 64 GB/s 1 GB GDDR3 USD 220 – 285
GeForce 9800 GTX+ 738 MHz 1,836 MHz 128 1,100 MHz 256-bit 70.4 GB/s 512 MB GDDR3 USD 190 – 210
GeForce 9800 GTX 675 MHz 1,688 MHz 128 1,100 MHz 256-bit 70.4 GB/s 512 MB GDDR3 USD 148 – 180
Palit GeForce 9800 GT 1 GB 600 MHz 1.5 GHz 112 900 MHz 256-bit 57.6 GB/s 1 GB GDDR3 USD 170
Radeon HD 4870 X2 750 MHz 750 MHz 800 900 MHz 256-bit 115.2 GB/s 1 GB GDDR5 USD 530 – 550
Radeon HD 4870 750 MHz 750 MHz 800 900 MHz 256-bit 115.2 GB/s 512 MB GDDR5 USD 290 – 310
Radeon HD 4850 625 MHz 625 MHz 800 993 MHz 256-bit 63.5 GB/s 512 MB GDDR3 USD 160 – 200
Radeon HD 4830 575 MHz 575 MHz 640 900 MHz 256-bit 57.6 GB/s 512 MB GDDR3 USD 130
Sapphire Atomic HD 3870 X2 857 MHz 857 MHz 320 927 MHz 256-bit 59.3 GB/s 1 GB GDDR3
Radeon HD 3870 776 MHz 776 MHz 320 1,125 MHz 256-bit 72 GB/s 512 MB GDDR4 USD 95 – 150

It is important to note that this table reflects the current prices for the listed video cards at, which are lower than the prices we published in other reviews, since prices tend to drop every day.

Some important observations regarding this table:

  • All NVIDIA chips are DirectX 10 (Shader 4.0), while all AMD/ATI chips are DirectX 10.1 (Shader 4.1).
  • The memory clocks listed are the real memory clock. Memory clocks are often advertised as double the figures presented, numbers known as “DDR clock.” Radeon HD 4870 and Radeon HD 4870 X2 use GDDR5 chips, which transfer four data per clock cycle and thus the “DDR clock” for these video cards is four times the value presented on this table (i.e., 3.6 GHz).
  • GeForce 9800 GX2, Radeon HD 3870 X2 and Radeon HD 4870 X2 have two GPU’s. The numbers on the table represent only one of the chips.
  • All video cards included on our review were running at the chip manufacturer default clock configuration (i.e., no overclocking), except Sapphire Atomic HD 3870 X2. The official core clock for Radeon HD 3870 X2 is 825 MHz, while the official memory clock is 900 MHz. So this card was a little bit overclocked. We couldn’t reduce these clocks to their reference values and since we hadn’t any other Radeon HD 3870 X2 available we included this video card anyway.
  • Prices were researched at on the day we published this review.
  • We couldn’t find Sapphire Atomic HD 3870 X2 for sale. This model will be more expensive than cards from other vendors based on the same GPU because it features water cooling. Just for you to have an idea, prices on the regular Radeon 3870 X2 are quoted between USD 160 and USD 275.

Before going to our tests let’s recap the main features from Sapphire Radeon HD 4830.

Author: Gabriel Torres

Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.

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