GeForce 7800 GS AGP vs Radeon R7 450 OEM

General info

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

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	GCN 1.0 (2012−2020)	Curie (2003−2013)
GPU code name	Cape Verde	G70
Market segment	Desktop	Desktop
Release date	30 June 2016 (7 years old)	2 February 2006 (18 years old)
Current price	$180	$235

Technical specs

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	512	no data
Core clock speed	925 MHz	375 MHz
Number of transistors	1,500 million	302 million
Manufacturing process technology	28 nm	110 nm
Power consumption (TDP)	65 Watt	75 Watt
Texture fill rate	29.60	6.000
Floating-point performance	947.2 gflops	no data

Size and 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 x16	AGP 8x
Width	1-slot	1-slot
Supplementary power connectors	None	1x Molex

Memory

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	GDDR5	GDDR3
Maximum RAM amount	2 GB	256 MB
Memory bus width	128 Bit	256 Bit
Memory clock speed	4.5 GB/s	1200 MBps
Memory bandwidth	72 GB/s	38.4 GB/s

Video outputs and ports

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	1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2	1x DVI, 1x VGA, 1x S-Video
HDMI	+	no data

API support

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

DirectX	12 (11_1)	9.0c (9_3)
Shader Model	6.5 (5.1)	3.0
OpenGL	4.6	2.1
OpenCL	2.1 (1.2)	N/A
Vulkan	1.2.170	N/A

Advantages and disadvantages

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Recency	30 June 2016	2 February 2006
Maximum RAM amount	2 GB	256 MB
Chip lithography	28 nm	110 nm
Power consumption (TDP)	65 Watt	75 Watt

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