ATI Radeon HD 3000 series

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A Radeon HD 3450

The Radeon HD 3000 series is a series of desktop graphics chips from AMD and the successor to the ATI Radeon HD 2000 series . It is the seventh generation of graphics processors with the name ATI Radeon . All graphics processors in this series support pixel , geometry and vertex shaders 4.1 according to DirectX 10.1. The Radeon HD 4000 series is the successor to this series.

history

The Radeon HD 3000 series is based on the architecture of the HD 2000 series, but some detail improvements have been made: The range of functions has been expanded and now also includes DirectX 10.1, and this series now supports PCI Express 2.0. In order to eliminate the point of criticism of the high power consumption, especially of the HD-2900 series, ATI PowerPlay was integrated into the chips, which not only lowers voltage and clock rates in idle mode, but also switches off unneeded parts of the chip, whereby even the RV670- based cards can compete with the low-end products of the Geforce 8 series when the load is low .

On the one hand to competitive even under load values to achieve in terms of absorption, on the other hand small as possible the obtaining faces, AMD makes the graphics processors (GPUs) at TSMC finished since the end of 2007 at the 55-nanometer process. This optical shrink made the in-house 65 nanometer SOI process, which was used for processors, obsolete. Until now, it was common to manufacture GPUs using older processes, as the chips are usually more complex than conventional desktop CPUs and, due to the greater experience with older manufacturing processes, a higher yield is possible.

On November 15, 2007, AMD first introduced the Radeon HD 3870 and HD 3850, two graphics cards based on the RV670, which should replace the R600 derivatives (Radeon HD 2900). In addition to the innovations in the series, they also offered the UVD video decoder compared to the R600 . The memory interface was shortened from 512 bits to 256 bits in order to reduce costs, in return the memory controller was optimized so that the lower memory bandwidth is still sufficient for the GPU performance. The RV670 replaces the last GPU of the 500 series that is still manufactured, the RV570, as it enables newer graphics cards based on the RV670 to be offered in the price range of the Radeon X1950 Pro. Some board partners AMDs brought out the Radeon HD 3690 and 3830 for the Chinese market in February 2008, which is a modified version of the Radeon HD 3850, in which the memory interface was reduced to 128 bits and the UVD video decoder was partially deactivated. The cards are not officially managed by AMD.

The Radeon HD 3650, HD 3470 and HD 3450 were presented on January 23, 2008. These models are based on the RV635 (Radeon HD 3650) or RV620 (Radeon HD 3450/3470) and were the first graphics cards to have a connector for the connection standard DisplayPort . The models of the Radeon HD 3400 series also support what the Radeon HD 34xx graphics card with the Hybrid CrossFire technology, AMD 780G and AMD 790GX - chipset brings integrated graphics higher performance. These models also have the optimizations that were introduced with the RV670, but compared to the previous series, the sizes of the memory interface have been retained.

In March 2008, the chipsets of the AMD 780 series were finally introduced, which contain integrated graphics solutions based on the Radeon HD 34xx with the names Radeon HD 3100 (AMD-780V) and Radeon HD 3200 (AMD-780G). In contrast to the Radeon HD 3100, the latter IGP contains a unified video decoder , which among other things decodes high-resolution videos in hardware and thus relieves the CPU . The HD 3100 also lacks the aforementioned hybrid crossfire technology and digital monitor outputs.

In August 2008, the range of integrated GPUs was expanded to include the HD-3300 graphics core integrated in the new AMD-790GX chipset, which is identical to the HD 3200, but has a core clock that is 200 MHz higher.

Manufacturers who use AMD chipsets with integrated HD-3xxx graphics have the option of providing the graphics core with its own memory, called a sideport. This reduces the load on the system RAM by the graphics processor and can also be addressed more quickly. Size, memory technology, clock frequency and the width of the memory interface of this side port can be determined by the mainboard manufacturer and thus vary.

Graphics processors

Graphics
chip
production units API Video
pro-
cessor
cutting
stelle
production
process
transis-
tors
The -
area
ROPs Unified shaders Texture units DirectX OpenGL ATI
Stream
Stream
processors
Shader
units
Shader
cluster
TAUs TMUs
RV610 65 nm 180 million 082 mm² 04th 040 08 × 5D- VLIW 2 08th 04th 10.0 3.3 Yes UVD 1.0 PCIe 1.0
RV620 55 nm 181 million 064 mm² 04th 040 08 × 5D-VLIW 2 08th 04th 10.1 PCIe 2.0
RV635 378 million 118 mm² 04th 120 24 × 5D-VLIW 3 16 08th
RV670 666 million 192 mm² 16 320 64 × 5D-VLIW 4th 32 16

Naming

All graphics cards are labeled with “ATI Radeon HD” and an additional four-digit number that generally begins with a “3” (for the series). The second digit then divides the family into different market segments. The third and fourth digits then serve to subdivide the various models. In contrast to the previous series, suffixes are no longer used, but the performance classification within the series or the market segment is simply based on the number.

division
  • HD 3100/3200/3300: IGP
  • HD 34xx: low-end
  • HD 36xx: mainstream
  • HD 38xx: performance
  • HD 3870 X2: high-end

Model data

model Official
launch
Graphics processor (GPU) Graphics memory TDP
( watt )
Type Active units Clock rate
(MHz)
Size
( MB )
Clock rate
(MHz)
Type Storage
interface
ROPs Shader -
cluster
Stream
processors
TAUs TMUs
Radeon HD 3100 March 4, 2008 RV610 4th 2 40 8th 4th 350 shared
up to
512
varies DDR3 up to 32 bits k. A.
Radeon HD 3200 March 4, 2008 RV610 4th 2 40 8th 4th 500 shared
up to
512
varies DDR3 up to 32 bits k. A.
Radeon HD 3300 Aug 2008 RV610 4th 2 40 8th 4th 700 shared
up to
512
varies DDR3 up to 32 bits k. A.
Radeon HD 3450 Jan. 23, 2008 RV620 4th 2 40 8th 4th 600 256
512
500 DDR2 64 bit 40
Radeon HD 3470 Jan. 23, 2008 RV620 4th 2 40 8th 4th 800 256 950 GDDR3 64 bit k. A.
Radeon HD 3650 Jan. 23, 2008 RV635 4th 3 120 16 8th 725 256
512
500 DDR2 128 bit 75
800 GDDR3
Radeon HD 3850 Nov 15, 2007 RV670 16 4th 320 32 16 668 256
512
828 GDDR3 256 bit 106
Radeon HD 3870 Nov 15, 2007 RV670 16 4th 320 32 16 775 512 1125 GDDR4 256 bit 126
Radeon HD 3870 X2 Jan. 28, 2008 2 × RV670
(R680)
2 × 16 2 × 4 2 × 320 2 × 32 2 × 16 825 2 × 512 900 GDDR3 2 × 256 bits approx. 200
Hints
  • The specified clock rates are those recommended or specified by AMD. However, the final specification of the clock rates is in the hands of the respective graphics card manufacturer. It is therefore entirely possible that there are or will be graphics card models that have different clock rates.
  • The date indicated is the date of the public presentation, not the date of availability of the models.
  • The manufacturer's TDP information may differ from the real maximum power consumption.

Performance data

The following theoretical performance data result for the respective models:

model Graphics processor / memory

Computing power of the stream
processors
in GFlops
Pixel
fill rate

in GPixel / s
Texel
fill rate

in GTexel / s
Data
transfer
rate

in GB / s
Radeon HD 3100 28 1.4 1.4 -
Radeon HD 3200 40 2.0 2.0 -
Radeon HD 3300 56 2.8 2.8 -
Radeon HD 3450 48 2.4 2.4 8.0
Radeon HD 3470 64 3.2 3.2 15.2
Radeon HD 3650 174 2.9 5.8 16.0
25.6
Radeon HD 3850 427.5 10.7 10.7 53
Radeon HD 3870 496 12.4 12.4 72.0
Radeon HD 3870 X2 2 × 528 2 × 13.2 2 × 13.2 2 × 57.6
Hints
  • The specified performance values ​​for the computing power via the stream processors, the pixel fill rate, the texel fill rate and the memory bandwidth are theoretical maximum values. The overall performance of a graphics card depends, among other things, on how well the available resources can be used or fully utilized. There are also other factors that are not listed here that affect performance.
  • The computing power via the stream processors is not directly comparable with the performance of the Nvidia Geforce 8 series, as it is based on a different architecture that scales differently.

Web links

Individual evidence

  1. Computerbase: Test: ATi Radeon HD 3850 (RV670) - power consumption. Test report dated November 27, 2007, accessed February 4, 2010