HD Graphics 405 vs GeForce 7900 GTX

Place in performance ranking	1067	1124
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.01	0.01
Architecture	Curie (2003−2013)	Gen. 8 (2015−2016)
GPU code name	G71	Braswell
Market segment	Desktop	Laptop
Release date	9 March 2006 (18 years ago)	1 April 2016 (8 years ago)
Current price	$228	$254

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

7900 GTX and HD Graphics 405 have a nearly equal value for money.

Detailed specifications

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	no data	16
Core clock speed	650 MHz	320 MHz
Boost clock speed	no data	700 MHz
Number of transistors	278 million	189 million
Manufacturing process technology	90 nm	14 nm
Power consumption (TDP)	84 Watt	6 Watt
Texture fill rate	15.60	11.20
Floating-point performance	no data	213.1 gflops

Form factor & compatibility

Information on GeForce 7900 GTX and HD Graphics 405 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.

Interface	PCIe 1.0 x16	PCIe 3.0 x1
Width	1-slot	no data
Supplementary power connectors	1x 6-pin	no data

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	GDDR3	System Shared
Maximum RAM amount	512 MB	System Shared
Memory bus width	256 Bit	64/128 Bit
Memory clock speed	1600 MHz	System Shared
Memory bandwidth	51.2 GB/s	no data
Shared memory	no data	+

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

2x DVI, 1x S-Video

No outputs

API compatibility

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

DirectX	9.0c (9_3)	12 (11_1)
Shader Model	3.0	5.1
OpenGL	2.1	4.3
OpenCL	N/A	2.0
Vulkan	N/A	1.1.80

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD

18−21
+20%

−20%

Pros & cons summary

Performance score	1.00	0.72
Recency	9 March 2006	1 April 2016
Maximum RAM amount	512 MB	System Shared
Chip lithography	90 nm	14 nm
Power consumption (TDP)	84 Watt	6 Watt