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PowerVR GX6250 vs PowerVR GX6450

PowerVR GX6250

► remove from comparison Imagination PowerVR GX6250

The PowerVR GX6250 from Imagination Technologies is a mobile graphics card for ARM based SoCs. It is usually used in Android based laptops and smartphones. It was first announced in the MediaTek MT8173 in mid 2014. The performance should be in the higher middle class of mobile GPUs.

The graphics card is part of the series 6XT (Rogue) of GPUs and offers a unified shader architecture with two clusters, two TMUs and 32 FP32-ALUs. The GPU supports OpenGL 3.x/4.x, OpenGL ES 3.x and DirectX 10.

In the MT8173 the GPU is clocked at 700 MHz and therefore the performance should be similar to the Adreno 330. Therefore, even demanding games of 2014 should run fluently.

PowerVR GX6450

► remove from comparison Imagination PowerVR GX6450

The Imagination Technologies PowerVR GX6450 is a fast mobile graphics solution for smartphones and tablets, which can be found in ARM SoCs such as the Apple A8 (iPhone 6 and iPhone 6 Plus). The chip is available since Q3/2014 and of one of the fastest solutions in its class at the time of introduction.

Architecture and Performance

The GPU is based on the PowerVR Series 6XT (Rogue) Unified Shader architecture and integrates four clusters with two TMUs and 32 FP32-ALUs each. Therefore, the theoretical FP32 (full precision) compute performance per clock is identical to the previous G6430 (also 4 clusters) found in the Apple A7. Thanks to additional dedicated FP16-ALUs, however, the also important FP16 (half precision) performance has been greatly improved.

In the iPhone 6, the GPU should be clocked at around 450 MHz, delivering about 115 GLOPS (FP32). Compared to other mobile graphics solutions, the GX6450 outperforms the Qualcomm Adreno 330 (Snapdragon 800/801) and matches the more recent Adreno 420 (Snapdragon 805). Except for Nvidia's power hungry tablet chip Tegra K1 and its bigger cousin GX6650, the GX6450 is one of the fastest mobile GPUs in late 2014. Even the most advanced games and high resolution displays are handled without any problems. Among others, the GPU supports OpenGL 3.x/4.x, OpenGL ES 3.0 as well as DirectX 10.

Power Consumption

Thanks to the advanced 20-nanometer process and the relatively low clock rate, the GX6450 implementation in Apple's A8 offers a very high energy efficiency. On the other hand, the GPU has a comparatively "wide" architecture requirering a lot of transistors and die size (19 mm² in 20 nm).

PowerVR GX6250PowerVR GX6450
ManufacturerImaginationImagination
PowerVR Series 6XT (Rogue) Series
PowerVR GXA6850 compare 256 @ 0.45 GHz128 Bit
PowerVR GX6450 128 @ 0.45 GHz64 Bit
PowerVR GX6250 64 @ 0.7 GHz64 Bit
PowerVR GXA6850 compare 256 @ 0.45 GHz128 Bit
PowerVR GX6450 128 @ 0.45 GHz64 Bit
PowerVR GX6250 64 @ 0.7 GHz64 Bit
CodenameRogueRogue
ArchitecturePowerVR RoguePowerVR Rogue
Pipelines64 - unified128 - unified
Core Speed700 (Boost) MHz450 (?) MHz
Memory Bus Width64 Bit64 Bit
Shared Memorynono
DirectXDirectX 10DirectX 10
technology28 nm20 nm
FeaturesOpenGL 3.x, 4.x, OpenGL ES 3.xOpenGL 3.x, 4.x, OpenGL ES 3.0
Date of Announcement09.09.2014 09.09.2014
Link to Manufacturer Pagehttp://www.imgtec.com/powervr/series6xt....http://www.imgtec.com/powervr/series6xt....
CPU in PowerVR GX6250GPU Base SpeedGPU Boost / Turbo
Mediatek MT81766 x 2100 MHz600 MHz? MHz
Mediatek MT81734 x 2400 MHz? MHz700 MHz
Mediatek MT8173C4 x 2100 MHz? MHz700 MHz
min. - max.600 - ? MHz700 MHz
CPU in PowerVR GX6450GPU Base SpeedGPU Boost / Turbo
Apple A82 x 1400 MHz? MHz? MHz

Benchmarks

3DMark - 3DMark Ice Storm Unlimited Graphics
min: 11719     avg: 14380     median: 14121 (2%)     max: 16690 Points
min: 22509     avg: 23756     median: 23937 (4%)     max: 25254 Points
3DMark - 3DMark Sling Shot (ES 3.0) Unlimited
min: 796     avg: 932     median: 840 (6%)     max: 1159 Points
3DMark - 3DMark Sling Shot (ES 3.0) Unlimited Graphics
min: 754     avg: 891     median: 812 (2%)     max: 1108 Points
3DMark - 3DMark Sling Shot Extreme (ES 3.1) Unlimited
min: 532     avg: 690     median: 612 (6%)     max: 926 Points
3DMark - 3DMark Sling Shot Extreme (ES 3.1) Unlimited Graphics
min: 506     avg: 614     median: 528 (2%)     max: 809 Points
GFXBench (DX / GLBenchmark) 2.7
GLBench 2.7 T-Rex HD Offscreen C24Z16 + PowerVR GX6250
GFXBench (DX / GLBenchmark) 2.7 - GLBench 2.7 T-Rex HD Offscreen C24Z16
min: 18     avg: 26.4     median: 27.8 (0%)     max: 33 fps
GLBench 2.7 T-Rex HD Offscreen C24Z16 + PowerVR GX6450
min: 42.6     avg: 44.6     median: 44.8 (0%)     max: 47.8 fps
GLBench 2.7 T-Rex HD Onscreen C24Z16 + PowerVR GX6250
GFXBench (DX / GLBenchmark) 2.7 - GLBench 2.7 T-Rex HD Onscreen C24Z16
min: 17     avg: 20.2     median: 21 (1%)     max: 23 fps
GLBench 2.7 T-Rex HD Onscreen C24Z16 + PowerVR GX6450
min: 37     avg: 47.1     median: 51.9 (2%)     max: 52.4 fps
GFXBench 3.0 - GFXBench 3.0 Manhattan Offscreen
min: 8.5     avg: 12.5     median: 14 (2%)     max: 16 fps
min: 17.8     avg: 19.1     median: 18.5 (2%)     max: 21.5 fps
GFXBench 3.0 - GFXBench 3.0 Manhattan
min: 6.4     avg: 8.6     median: 8.9 (2%)     max: 9.7 fps
min: 15.3     avg: 23.7     median: 24.5 (7%)     max: 30.6 fps
GFXBench - GFXBench Car Chase Offscreen
min: 2     avg: 3.5     median: 3.4 (1%)     max: 5.1 fps
GFXBench - GFXBench Car Chase Onscreen
min: 2     avg: 3     median: 3 (1%)     max: 3.9 fps
GFXBench - GFXBench 5.0 Aztec Ruins Normal Tier Offscreen
6.6 fps (1%)
Basemark X 1.1 - Basemark X 1.1 High Quality
min: 15572     avg: 16055     median: 16055 (36%)     max: 16538 Points
PassMark PerformanceTest Mobile V1 - PerformanceTest Mobile 2D Graphics Tests
min: 2320     avg: 2579     median: 2609 (3%)     max: 2809 Points
PassMark PerformanceTest Mobile V1 - PerformanceTest Mobile 3D Graphics Tests
min: 1060     avg: 1679     median: 1984 (4%)     max: 1992 Points

Average Benchmarks PowerVR GX6250 → 100% n=5

Average Benchmarks PowerVR GX6450 → 197% n=5

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailed information on the benchmark results, click on the fps number.

League of Legends: Wild Rift

League of Legends: Wild Rift

2020
low
PowerVR GX6450:
59  fps
Dead Trigger 2

Dead Trigger 2

2013
high
100%
PowerVR GX6250:
30 59 ~ 45 fps
Asphalt 8: Airborne

Asphalt 8: Airborne

2013
low
100%
PowerVR GX6250:
30 30 ~ 30 fps
high
100%
PowerVR GX6250:
22 26 ~ 24 fps
Temple Run 2

Temple Run 2

2013
high
100%
PowerVR GX6250:
60  fps

Average Gaming PowerVR GX6250 → 100%

Average Gaming 30-70 fps → 100%

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

Add one or more devices and compare

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Graphics Card Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)