ATI Radeon HD 4650 vs GeForce GTX 780 Rev. 2

Place in the ranking	427	1196
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.25	no data
Power efficiency	3.01	0.90
Architecture	Kepler (2012−2018)	TeraScale (2005−2013)
GPU code name	GK110B	RV730
Market segment	Desktop	Desktop
Release date	10 September 2013 (11 years ago)	10 September 2008 (16 years ago)
Launch price (MSRP)	$649	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

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	2304	320
Core clock speed	863 MHz	600 MHz
Boost clock speed	902 MHz	no data
Number of transistors	7,080 million	514 million
Manufacturing process technology	28 nm	55 nm
Power consumption (TDP)	250 Watt	48 Watt
Texture fill rate	173.2	19.20
Floating-point processing power	4.156 TFLOPS	0.384 TFLOPS
ROPs	48	8
TMUs	192	32

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	PCIe 2.0 x16
Length	267 mm	193 mm
Width	2-slot	1-slot
Supplementary power connectors	1x 6-pin + 1x 8-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	3 GB	256 MB
Memory bus width	384 Bit	128 Bit
Memory clock speed	1502 MHz	700 MHz
Memory bandwidth	288.4 GB/s	22.4 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	2x DVI, 1x HDMI, 1x DisplayPort	2x DVI, 1x S-Video
HDMI	+	-

API compatibility

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

DirectX	12 (11_1)	10.1 (10_1)
Shader Model	5.1	4.1
OpenGL	4.6	3.3
OpenCL	1.2	1.1
Vulkan	1.1.126	N/A
CUDA	3.5	-

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	10.78	0.62
Recency	10 September 2013	10 September 2008
Maximum RAM amount	3 GB	256 MB
Chip lithography	28 nm	55 nm
Power consumption (TDP)	250 Watt	48 Watt

GTX 780 Rev. 2 has a 1638.7% higher aggregate performance score, an age advantage of 5 years, a 1100% higher maximum VRAM amount, and a 96.4% more advanced lithography process.

ATI HD 4650, on the other hand, has 420.8% lower power consumption.

The GeForce GTX 780 Rev. 2 is our recommended choice as it beats the Radeon HD 4650 in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.