UHD Graphics 620 vs Radeon HD 7950

Place in performance ranking	368	772
Place by popularity	not in top-100	24
Value for money	1.34	0.76
Architecture	GCN 1.0 (2012−2020)	Gen. 9.5 (2017)
GPU code name	Tahiti	Kaby-Lake-Refresh GT2
Market segment	Desktop	Laptop
Design	reference	no data
Release date	31 January 2012 (12 years ago)	1 September 2017 (6 years ago)
Launch price (MSRP)	$449	no data
Current price	$431 (1x MSRP)	$706

Value for money

Performance to price ratio. The higher, the better.

HD 7950 has 76% better value for money than UHD Graphics 620.

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	1792	24
Compute units	28	no data
Core clock speed	no data	300 MHz
Boost clock speed	1250 MHz	1150 MHz
Number of transistors	4,313 million	189 million
Manufacturing process technology	28 nm	14 nm
Power consumption (TDP)	200 Watt	15 Watt
Texture fill rate	89.60	27.60
Floating-point performance	2,867 gflops	no data

Size and compatibility

Information on Radeon HD 7950 and UHD Graphics 620 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.

Bus support	PCIe 3.0 x16	no data
Interface	PCIe 3.0 x16	PCIe 3.0 x1
Length	267 mm	no data
Width	2-slot	no data
Supplementary power connectors	2x 6-pin	no data

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	LPDDR3/DDR4
Maximum RAM amount	3 GB	32 GB
Memory bus width	384 Bit	System Shared
Memory clock speed	1250 MHz	System Shared
Memory bandwidth	240 GB/s	no data
Shared memory	no data	+

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, 2x mini-DisplayPort	No outputs
Eyefinity	1	no data
Number of Eyefinity displays	6	no data
HDMI	+	no data
DisplayPort support	-	no data

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAcceleration	+	no data
CrossFire	1	no data
Enduro	-	no data
FreeSync	1	no data
HD3D	-	no data
PowerTune	+	no data
TrueAudio	-	no data
ZeroCore	+	no data
Quick Sync	no data	+

API support

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

DirectX	DirectX® 11	12 (12_1)
Shader Model	5.1	6.4
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	no data	1.1.103
Mantle	-	no data

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 7950 12.30
+362%

UHD Graphics 620 2.66

Radeon HD 7950 outperforms UHD Graphics 620 by 362% based on our aggregated 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 7950 4764
+363%

UHD Graphics 620 1030

Radeon HD 7950 outperforms UHD Graphics 620 by 363% in Passmark.

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

Benchmark coverage: 14%

HD 7950 7500
+542%

UHD Graphics 620 1168

Radeon HD 7950 outperforms UHD Graphics 620 by 542% in 3DMark Fire Strike Graphics.

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	60−65 +362%	13 −362%
1440p	70−75 +338%	16 −338%
4K	35−40 +338%	8 −338%

Advantages and disadvantages

Performance score	12.30	2.66
Recency	31 January 2012	1 September 2017
Maximum RAM amount	3 GB	32 GB
Chip lithography	28 nm	14 nm
Power consumption (TDP)	200 Watt	15 Watt