ATI Graphics Ultra Pro ISA vs GeForce 840A

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	779	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	6.60	no data
Architecture	Maxwell (2014−2017)	Mach (1992−1997)
GPU code name	GM108	Mach32
Market segment	Desktop	Desktop
Release date	17 March 2014 (10 years ago)	1992 (32 years ago)
Launch price (MSRP)	no data	$799

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	384	no data
Core clock speed	1029 MHz	10 MHz
Boost clock speed	1124 MHz	no data
Manufacturing process technology	28 nm	700 nm
Power consumption (TDP)	33 Watt	no data
Texture fill rate	17.98	no data
Floating-point processing power	0.8632 TFLOPS	no data
ROPs	8	1
TMUs	16	no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Interface	PCIe 3.0 x8	ISA 16 Bit
Width	IGP	1-slot

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	DDR3	DRAM
Maximum RAM amount	2 GB	2 MB
Memory bus width	64 Bit	64 Bit
Memory clock speed	1001 MHz	10 MHz
Memory bandwidth	16.02 GB/s	80 MB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors

No outputs

1x VGA

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 (11_0)	N/A
Shader Model	5.1	no data
OpenGL	4.6	N/A
OpenCL	1.2	N/A
Vulkan	1.1.126	N/A
CUDA	5.0	-

Pros & cons summary

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Maximum RAM amount	2 GB	2 MB
Chip lithography	28 nm	700 nm

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