Radeon HD 7450A vs HD 7790

Place in performance ranking	487	1121
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.12	0.56
Architecture	GCN 2.0 (2013−2017)	TeraScale 2 (2009−2015)
GPU code name	Bonaire	Caicos
Market segment	Desktop	Desktop
Release date	22 March 2013 (11 years ago)	5 January 2012 (12 years ago)
Launch price (MSRP)	$149	no data
Current price	$219 (1.5x MSRP)	$12.99

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

HD 7790 has 100% better value for money than HD 7450A.

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	896	160
Core clock speed	1000 MHz	625 MHz
Number of transistors	2,080 million	370 million
Manufacturing process technology	28 nm	40 nm
Power consumption (TDP)	85 Watt	25 Watt
Texture fill rate	56.00	5.000
Floating-point performance	1,792 gflops	200.0 gflops

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 x16	MXM-A (3.0)
Length	183 mm	no data
Width	2-slot	MXM Module
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	GDDR5	GDDR3
Maximum RAM amount	1 GB	512 MB
Memory bus width	128 Bit	64 Bit
Memory clock speed	6000 MHz	1600 MHz
Memory bandwidth	96 GB/s	12.8 GB/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	1x DVI, 1x HDMI, 2x mini-DisplayPort	No outputs
HDMI	+	no data

API compatibility

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

DirectX	12 (12_0)	11.2 (11_0)
Shader Model	6.3	5.0
OpenGL	4.6	4.4
OpenCL	2.0	1.2
Vulkan	1.2.131	N/A

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 7790 8.00
+967%

HD 7450A 0.75

HD 7790 outperforms HD 7450A by 967% based on our aggregate benchmark results.

Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

HD 7790 3090
+973%

HD 7450A 288

HD 7790 outperforms HD 7450A by 973% in Passmark.

Gaming performance

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

Pros & cons summary

Performance score	8.00	0.75
Recency	22 March 2013	5 January 2012
Maximum RAM amount	1 GB	512 MB
Chip lithography	28 nm	40 nm
Power consumption (TDP)	85 Watt	25 Watt