Radeon HD 2900 GT vs HD 7450A

Place in performance ranking	1121	1117
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.56	no data
Architecture	TeraScale 2 (2009−2015)	TeraScale (2005−2013)
GPU code name	Caicos	R600
Market segment	Desktop	Desktop
Release date	5 January 2012 (12 years ago)	6 November 2007 (16 years ago)
Current price	$12.99	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	160	240
Core clock speed	625 MHz	601 MHz
Number of transistors	370 million	720 million
Manufacturing process technology	40 nm	80 nm
Power consumption (TDP)	25 Watt	150 Watt
Texture fill rate	5.000	7.212
Floating-point performance	200.0 gflops	288.48 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	MXM-A (3.0)	PCIe 1.0 x16
Width	MXM Module	2-slot
Supplementary power connectors	no data	1x 8-pin

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	GDDR3
Maximum RAM amount	512 MB	256 MB
Memory bus width	64 Bit	256 Bit
Memory clock speed	1600 MHz	1600 MHz
Memory bandwidth	12.8 GB/s	51.2 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

No outputs

2x DVI, 1x S-Video

API compatibility

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

DirectX	11.2 (11_0)	10.0 (10_0)
Shader Model	5.0	4.0
OpenGL	4.4	3.3
OpenCL	1.2	N/A
Vulkan	N/A	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 7450A 0.75

ATI HD 2900 GT 0.76
+1.3%

HD 2900 GT outperforms HD 7450A by 1% 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 7450A 288

ATI HD 2900 GT 292
+1.4%

HD 2900 GT outperforms HD 7450A by 1% 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	0.75	0.76
Recency	5 January 2012	6 November 2007
Maximum RAM amount	512 MB	256 MB
Chip lithography	40 nm	80 nm
Power consumption (TDP)	25 Watt	150 Watt