AMD Radeon HD 8790M video card review: Specs | Hashrate

AMD Radeon HD 8790M video card review: Specs | Hashrate | Testing – The AMD Radeon HD 8790M is a DirectX 11.1 compatible graphics card designed for multimedia notebooks. This graphics video adapter is referred by the manufacturer to the middle segment of mobile video cards, and judging by the index, it is a replacement for the previous generation AMD Radeon HD 7690M. The video card is built on a Mars chip (28 nm GCN architecture) and has 384 shader cores, 24 texture units and 16 ROP units. The video core runs at 850 MHz and has GDDR5 1125 MHz memory.

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1 Supported technologies

The maximum volume of its own video memory of the new video card can reach 2 GB, GDDR5 standard. The advantages of the new mobile GPU from AMD include increased energy efficiency, in particular, achieved by the ZeroCore function, which almost completely cuts off power to unused cores, and the PowerTune function, which increases the clock speed when possible and necessary. As for the performance of the AMD Radeon HD 8790M, it will most likely be about the same as that of the video card from the competing company GeForce GT 660M.

Supported technologies

you PowerTune – a calculator that calculates the power consumption of the card in real time at intervals of milliseconds based on the analysis of the task being performed (without any analog sensors). And if possible, the GPU clock speed increases. Note that this is not a reset of the frequency relative to the nominal when the power threshold is reached, but, on the contrary, a precisely verified dynamic acceleration.

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ATI PowerPlay Is a dynamic power management technology used in some graphics processing units (GPUs) manufactured by AMD (formerly ATI). The principle of operation is based on tracking the GPU load, determining the optimal parameters and correspondingly changing the clock frequency of the chip, memory and supply voltage, thereby optimizing the power consumption and heat dissipation of the video card. The technology in idle modes can disable unused GPU blocks.

ATI Eyefinity — a technology developed by the American company AMD that allows multiple displays to be connected together to a personal computer. ATI Eyefinity assumes connection from one to six displays inclusive to one graphics card. Desktop duplication and stretching modes are supported across multiple monitors, and a special new feature allows displays to be grouped into one large screen that can display a PC desktop or, for example, video, as well as windowed or full-screen 3D applications.

AMD HD3D — The technology is supported by an extended and open ecosystem that, when combined with specific AMD hardware and software technologies, enables the 3D viewing of many applications and processes on the PC.

AMD Enduro — Automatically disables AMD Radeon discrete graphics for lightweight applications and extends battery life.

AMD Zero Core — In a deep idle state, the new GPU consumes less than 5% of the power of full-fledged mode, disabling most of the functional blocks in this mode.

Specifications

AMD Radeon HD 8790M

Manufacturer

AMD

Series

Radeon HD 8000М

Processor code

GCN

Streams

shraders 384

Core clock speed

850 MHz

Shader frequency

850 MHz

Memory frequency

4500 MHz

Memory bus width

128 pages

Memory type

GDDR5

Memory Amount

2048 MB

DirectX

DirectX 11.1, Shader 5.1

Technology

28 n.m.

Synthetic tests

3DMark (2011)- Performance GPU: 2186
3DMark (2013) – Ice Storm Standard Graphics: 69945
3DMark (2013) – Cloud Gate Standard Graphics: 12049
3DMark (2013) – Fire Strike Standard Graphics: 1727

Game testing

Metro: Last Light. The resolution is 1366×768 pixels, with medium graphics settings in the game (Medium, DX10.4xAF, AA), the average FPS was 40. When the settings were raised to high (High DX11, 16xAF, AA), the number of FPS was 23. At a display resolution of 1920×1080 and maximum graphics settings (Very High DX11, 16xAF, AA), the average number of frames per second was 12.

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Dead Space 3. Graphics settings are average (Medium off, 1366×768, AF, AA) 80 FPS, when the settings are increased to the high level (High, 1366×768, AF, AA), the average frame rate per second is 58. When the graphics settings are set to the level (Ultra AF FXAA) the result was 36 frames per second.

Crysis 3. Graphics settings are average (Medium, 1366×768, 16xAF, FXAA) 66 FPS, when the settings are increased to high (High, 1366×768, 16xAF, FXAA), the average frame rate per second is 42. At the maximum settings Very High, 16xAF 2x MSAA) – 12 FPS.

BioShock Infinite. At medium settings (1366×768, Medium, AF AA) the average number of FPS in the game was 55. At high graphics settings (1366×768, High AA AF) – 48 PS. At maximum graphics settings (Ultra 1920×1080, DOF, AA AF), the average number of frames was kept at 16 FPS.

Battlefield 3. The resolution is 1366×768 pixels, when setting (medium) and activating fourfold anti-aliasing, the average number of frames per second was 51 FPS. When the settings were raised to the high level (High AFx16, AA), the number of FPS was 43 FPS. At maximum graphics settings and a resolution of 1920 x 1080 pixels, the average number of FPS was 17.

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Hitman: Absolution. Graphics settings are average (Mediuml, 2xAF, AA, 1366×768) 45 FPS, when the settings are increased to high (High, 1366 x 768, 2xMSAA, 8xAF), the average frame rate per second is 35. At maximum graphics settings (Ultra 1920 x 1080, 4xMSAA, 16xAF), the average number of frames was kept at the level of 10 FPS.

Company of Heroes 2. At medium settings (1366 x 768, Medium, AF), the average number of FPS in the game was 30. At high graphics settings (1366 x 768, High, AF, medium AA) – 18 PS. At the maximum graphics settings (Maximum 1920 x 1080, High AA, High AF), the average number of frames was kept at 12 FPS.

Call of Duty: Black Ops 2. With a resolution of 1366×768 pixels and high game settings (High FXAF, 2xMSAAA), the result averaged 43 frames per second. At medium graphics settings (Medium AF, AA) 82 frames per second. At the highest Ultra settings, the display resolution is 1920 x 1080 pixels, the average number of frames per second was 28.