PowerVR GXA6850
Imagination Technologies PowerVR GXA6850 es una veloz solución gráfica móvil (principalmente) para tablets, que puede ser encontrada en SoCs ARM como el Apple A8X (iPad Air 2). El chip está disponible desde el tercer trimestre de 2014 es una de las soluciones más veloces de esta clase en el momento de la introducción.
Arquitectura y Rendimiento
En contraste con especulaciones previas, el A8X integra un PowerVR de 8 clusters de la Serie 6 (Rogue) GXA6850 que consiste de dos GPUs GX6450 (2x 4 clusters) en vez de una sola GX6650 (6 clusters). El nombre GXA6850 fue creado por Anandtech, el diseño también puede ser llamado un GX6450MP2.
Cada cluster ofrece cuatro FP16 y dos ALUs FP32, resultando en un poder de cómputo de cerca de 230 GFLOPS FP32 a 450 MHz (velocidad estimada). La GXA6850 no solo derrota al Qualcomm Adreno 420 (Snapdragon 805), sino también al Nvidia Tegra K1 por un margen pequeño. Por eso, la GXA6850 es una de las GPUs más veloces para tablets de 2014 y puede lidiar con los juegos móviles más exigentes en altas resoluciones. Entre otros, la GPU soporta OpenGL 3.x/4.x, OpenGL ES 3.0 así como DirectX 10.
Gracias al avanzado proceso de 20-nanómetros y a la velocidad relativamente baja, la implementación de la GXA6850 en el A8X de Apple ofrece una eficiencia de energía muy alta. Por otro lado, la GPU tiene una arquitectura comparablemente "amplia" que exige muchos transistores y tamaño de matriz (cerca de 38 mm² en 20 nm).
Fabricante Imagination PowerVR Series 6XT (Rogue) Serie PowerVR GXA6850 256 @ 450 (?) MHz 128 Bit PowerVR GX6450 128 @ 450 (?) MHz 64 Bit PowerVR GX6250 64 @ 700 (Boost) MHz 64 Bit
Nombre Código Rogue Arquitectura PowerVR Rogue Pipelines 256 - unificado Velocidad del núcleo 450 (?) MHz Ancho de Bus de Memoria 128 Bit Memoria Compartida no DirectX DirectX 10 tecnología 20 nm Características OpenGL 3.x, 4.x, OpenGL ES 3.0 Fecha de Anuncio 09.09.2014 Link a la Página del Fabricante http://www.imgtec.com/powervr/series6xt....
Benchmarks 3DMark - Ice Storm Unlimited Graphics Score 1280x720 offscreen
31542 Points (6%)
...
Qualcomm Adreno 512 -9%
ARM Mali-T880 MP12 -5%
PowerVR GXA6850
ARM Mali-G72 MP12 3%
ARM Mali-G71 MP8 12%
ARM Mali-G71 MP20 12%
...
3DMark - Sling Shot OpenGL ES 3.0 Unlimited 2560x1440
2651 Points (20%)
...
Intel HD Graphics (Cherry Trail) -42%
ARM Mali-G72 MP3 -42%
Qualcomm Adreno 509 -42%
Qualcomm Adreno 512 -22%
ARM Mali-G71 MP8 -10%
ARM Mali-T880 MP12 0%
PowerVR GXA6850
Qualcomm Adreno 616 2%
Apple A9 / PowerVR GT7600 3%
ARM Mali-G72 MP12 21%
ARM Mali-G71 MP20 34%
Apple A10 Fusion GPU / PowerVR 40%
ARM Mali-G72 MP18 54%
ARM Mali-G76 MP12 58%
...
Apple A12X Bionic GPU 408%
3DMark - Sling Shot OpenGL ES 3.0 Unlimited Graphics 2560x1440
3474 Points (12%)
...
Intel HD Graphics (Cherry Trail) -52%
Qualcomm Adreno 512 -44%
ARM Mali-G71 MP8 -28%
Qualcomm Adreno 616 -17%
ARM Mali-T880 MP12 -12%
ARM Mali-G72 MP12 -3%
PowerVR GXA6850
ARM Mali-G71 MP20 24%
ARM Mali-G76 MP12 34%
ARM Mali-G76 MP10 35%
Apple A9 / PowerVR GT7600 37%
ARM Mali-G72 MP18 40%
Apple A10 Fusion GPU / PowerVR 75%
...
Apple A12X Bionic GPU 728%
3DMark - Sling Shot Extreme (ES 3.1) Unlimited 2560x1440
2059 Points (35%)
...
ARM Mali-G72 MP3 -49%
Intel HD Graphics (Cherry Trail) -41%
Qualcomm Adreno 512 -32%
Qualcomm Adreno 616 -7%
ARM Mali-G71 MP8 -3%
Apple A9 / PowerVR GT7600 -2%
PowerVR GXA6850
ARM Mali-T880 MP12 4%
Apple A10 Fusion GPU / PowerVR 30%
ARM Mali-G72 MP12 40%
Apple A11 Bionic GPU 41%
ARM Mali-G71 MP20 49%
ARM Mali-G72 MP18 66%
...
Qualcomm Adreno 640 187%
3DMark - Sling Shot Extreme (ES 3.1) Unlimited Graphics 2560x1440
2377 Points (29%)
...
ARM Mali-G72 MP3 -62%
Qualcomm Adreno 512 -48%
Intel HD Graphics (Cherry Trail) -47%
Qualcomm Adreno 616 -22%
ARM Mali-G71 MP8 -18%
ARM Mali-T880 MP12 -2%
PowerVR GXA6850
Apple A9 / PowerVR GT7600 12%
ARM Mali-G72 MP12 24%
Apple A11 Bionic GPU 36%
ARM Mali-G71 MP20 39%
Apple A10 Fusion GPU / PowerVR 48%
ARM Mali-G72 MP18 58%
ARM Mali-G76 MP10 74%
...
Qualcomm Adreno 640 198%
GFXBench (DX / GLBenchmark) 2.7 + GFXBench (DX / GLBenchmark) 2.7 - T-Rex HD Offscreen C24Z16 1920x1080
min: 70.4 de promedio: 70.4 mediana: 70.4 (1%) max: 70.5 fps
Apple iPad Air 2 A8X 2048 MB 70.4
iPad Air 2 GFXBench Browser A8X 2048 MB 70.4
iPad Air 2 A8X 70.5
...
Qualcomm Adreno 616 -8%
Intel UHD Graphics 615 -1%
PowerVR GXA6850
ARM Mali-G71 MP8 2%
AMD Radeon R6 M340DX 3%
...
T-Rex HD Onscreen C24Z16 + GFXBench (DX / GLBenchmark) 2.7 - T-Rex HD Onscreen C24Z16
52.1 fps (2%)
...
Qualcomm Adreno 512 -8%
Intel HD Graphics (Broadwell) -3%
ARM Mali-T880 MP12 0%
PowerVR GXA6850
ARM Mali-G71 MP8 0%
...
GFXBench 3.0 - Manhattan Offscreen OGL off screen
min: 32.4 de promedio: 35 mediana: 35 (6%) max: 37.6 fps
...
AMD Radeon R5 (Bristol Ridge) -10%
AMD Radeon RX Vega 8 -8%
Qualcomm Adreno 616 -8%
ARM Mali-G71 MP8 -5%
PowerVR GXA6850
Intel UHD Graphics 615 5%
ARM Mali-T880 MP12 11%
Apple A9 / PowerVR GT7600 13%
...
GFXBench 3.0 - Manhattan Onscreen OGL on screen
min: 24.5 de promedio: 25.8 mediana: 25.8 (7%) max: 27 fps
...
PowerVR GXA6850
AMD Radeon R4 (Stoney Ridge) 1%
ARM Mali-T880 MP12 2%
Intel HD Graphics (Broadwell) 3%
ARM Mali-G71 MP8 8%
AMD Radeon Pro 455 8%
...
GFXBench - High Tier Onscreen
6.1 fps (10%)
...
Qualcomm Adreno 505 -54%
PowerVR GE8320 -54%
Qualcomm Adreno 506 -50%
Qualcomm Adreno 509 -44%
ARM Mali-G72 MP3 -28%
ARM Mali-G51 MP4 -24%
Qualcomm Adreno 512 -20%
PowerVR GXA6850
Qualcomm Adreno 616 23%
Apple A9X / PowerVR Series 7XT 31%
ARM Mali-G71 MP8 53%
Apple A10 Fusion GPU / PowerVR 102%
ARM Mali-G72 MP12 126%
...
NVIDIA GeForce GTX 1050 Ti Max-Q 884%
GFXBench - High Tier Offscreen 2560x1440
5.3 fps (10%)
...
ARM Mali-G71 MP2 -69%
Qualcomm Adreno 508 -61%
Qualcomm Adreno 509 -58%
ARM Mali-G51 MP4 -49%
ARM Mali-G72 MP3 -43%
Qualcomm Adreno 512 -34%
PowerVR GXA6850
ARM Mali-G71 MP8 10%
Qualcomm Adreno 616 13%
ARM Mali-G72 MP12 62%
Apple A10 Fusion GPU / PowerVR 104%
...
NVIDIA GeForce GTX 1050 Ti Max-Q 834%
GFXBench - Normal Tier Onscreen
9.5 fps (16%)
...
ARM Mali-G71 MP2 -48%
Qualcomm Adreno 506 -47%
Qualcomm Adreno 508 -47%
Qualcomm Adreno 509 -41%
ARM Mali-G51 MP4 -39%
ARM Mali-G72 MP3 -22%
Qualcomm Adreno 512 -13%
PowerVR GXA6850
Qualcomm Adreno 616 33%
ARM Mali-G71 MP8 42%
Apple A9X / PowerVR Series 7XT 46%
ARM Mali-G72 MP12 107%
Apple A10 Fusion GPU / PowerVR 111%
ARM Mali-G76 MP12 135%
...
NVIDIA GeForce GTX 1050 Ti Max-Q 532%
GFXBench - Normal Tier Offscreen 1920x1080
14.2 fps (11%)
...
Qualcomm Adreno 509 -58%
ARM Mali-G51 MP4 -57%
ARM Mali-G72 MP3 -51%
Qualcomm Adreno 512 -39%
ARM Mali-G71 MP8 -19%
Qualcomm Adreno 616 -1%
PowerVR GXA6850
ARM Mali-G72 MP12 45%
Apple A11 Bionic GPU 96%
Apple A10 Fusion GPU / PowerVR 117%
ARM Mali-G76 MP10 135%
...
Apple A12X Bionic GPU 820%
Basemark X 1.1 - High Quality
29502 fps (67%)
...
ARM Mali-G72 MP12 -12%
ARM Mali-T880 MP12 -8%
PowerVR GXA6850
ARM Mali-G71 MP8 17%
ARM Mali-G71 MP20 42%
...
ARM Mali-G71 MP20 42%
Basemark X 1.1 - Medium Quality
41488 fps (92%)
...
ARM Mali-G72 MP12 -6%
ARM Mali-T880 MP12 -2%
PowerVR GXA6850
ARM Mali-G71 MP8 4%
ARM Mali-G71 MP20 4%
...
PassMark PerformanceTest Mobile V1 - 2D Graphics Tests
2956 Points (16%)
...
PowerVR SGX540 -13%
ARM Mali-400 MP4 -13%
Qualcomm Adreno 505 -12%
PowerVR SGX544MP2 -10%
ARM Mali-T860 MP2 -7%
Qualcomm Adreno 306 -5%
Vivante GC7000UL 1%
Qualcomm Adreno 506 8%
ARM Mali-T624 25%
ARM Mali-T760 MP2 31%
ARM Mali-T880 MP2 34%
...
PassMark PerformanceTest Mobile V1 - 3D Graphics Tests
1160 Points (21%)
...
Apple A12X Bionic GPU -12%
Qualcomm Adreno 505 -11%
ARM Mali-T624 -8%
ARM Mali-450 MP4 -8%
ARM Mali-T880 MP2 -6%
PowerVR SGX544MP2 -2%
Apple A9X / PowerVR Series 7XT 1%
Apple A10X Fusion GPU / PowerVR 2%
ARM Mali-T628 MP4 5%
ARM Mali-G71 MP2 5%
ARM Mali-T760 MP2 10%
...
Qualcomm Adreno 640 320%
- Gama de valores de las pruebas para esta tarjeta gráfica
- Valores medios de las pruebas para esta tarjeta gráfica
* Smaller numbers mean a higher performance
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Class 1
NVIDIA Titan RTX
GeForce RTX 2080 Ti (Desktop)
GeForce RTX 2080 (Desktop)
Radeon VII
GeForce RTX 2080 (Laptop) *
GeForce RTX 2080 Max-Q *
Titan X Pascal
GeForce GTX 1070 SLI (Desktop)
GeForce RTX 2070 (Desktop)
GeForce GTX 1080 (Desktop)
GeForce RTX 2070 (Laptop) *
RX Vega 56
GeForce RTX 2070 Max-Q *
GeForce RTX 2060 (Desktop) *
GeForce RTX 2060 (Laptop) *
Pro Vega 56 *
GeForce RTX 2060 Max-Q *
GeForce GTX 1660 Ti (Laptop) *
Quadro P4200
Quadro P5000 Max-Q *
Radeon RX 590
Radeon RX 580
GeForce GTX 1060 (Desktop)
Radeon RX 480
Quadro P4000 Max-Q
Radeon RX 580X (Laptop) *
Radeon RX 580 (Laptop)
Vega Mobile *
GeForce GTX 1650 (Laptop) *
Quadro P3000 Max-Q *
Radeon RX 480 (Laptop) *
Radeon Pro WX 7100 *
Radeon RX 570X (Laptop) *
Radeon RX 570 (Laptop) *
Radeon RX 470 (Laptop) *
Class 2
Radeon RX 490M *
Radeon Pro Vega 20 *
GeForce GTX 1050 Ti (Laptop)
Quadro P2000 Max-Q
Radeon R9 M395X
GeForce GTX 1050 Ti Max-Q *
WX Vega M GL
Radeon Pro Vega 16 *
Radeon R9 M485X
GeForce GTX 590
GeForce GTX 1050 Max-Q *
Radeon HD 7870
Radeon RX 560X (Laptop)
Radeon RX 560 (Laptop)
Radeon R9 M290X
GeForce GTX 580
Radeon HD 6970
GeForce GTX 775M
Radeon Pro 560X
Radeon Pro 560
Radeon Pro 460
Radeon Pro WX 4130 *
Radeon RX 550X (Laptop) *
GeForce GTX 570
GeForce GTX 480
Radeon Pro 555X
Radeon Pro 555
Radeon Pro 455
Quadro P600
GeForce MX250
Radeon Pro WX 3100 Mobile *
Radeon Pro 450
Radeon HD 7950M *
GeForce GTX 560 Ti
Radeon HD 6870
GeForce GTX 470
Quadro P500 *
Vega 10 *
Iris Pro Graphics 580
Radeon HD 5850
Radeon R9 M385 *
Radeon HD 7770
GeForce GTX 460 768MB
Radeon HD 6790
FirePro W5130M
FirePro M8900
GeForce MX230
Radeon HD 5770
GeForce GTX 550 Ti
Radeon R9 M365X
Radeon R7 M465
FirePro W4170M
FirePro W4100
Vega 8
Radeon HD 4850
Class 3
GeForce 930MX
A12X Bionic GPU *
Quadro M600M
FirePro W4190M
Radeon R7 M445
Radeon R7 M380 *
Iris Plus Graphics 650
Iris Plus Graphics 640
GeForce 920MX
A12 Bionic GPU *
A11 Bionic GPU *
A10X Fusion GPU *
GeForce GTS 450
Radeon HD 6870M
A9X / PowerVR GT7xxx
Radeon R7 M260
Radeon R7 M340
Radeon R6 M340DX
UHD Graphics 630
HD Graphics 630
Radeon R5 (Bristol Ridge)
Radeon HD 5670
FirePro W2100
GeForce GT 240
Radeon HD 6755G2 *
Radeon HD 6750M
GeForce GT 430
Radeon HD 6830M
Radeon HD 6760G2 *
Radeon HD 6730M *
Mobility Radeon HD 5770
Class 4
Radeon R5 M315 *
Radeon R5 M420 *
A10 Fusion GPU
Mobility Radeon HD 5750 *
Radeon HD 6720G2 *
Radeon HD 6690G2 *
Mobility Radeon HD 5730
Adreno 640 *
Mali-G76 MP12 *
Mali-G76 MP10 *
Mali-G72 MP18 *
Mali-G71 MP20 *
Mali-G72 MP12 *
Mali-G71 MP8
UHD Graphics 617 *
UHD Graphics 615 *
Radeon R5 (Carrizo) *
Radeon HD 6680G2 *
Quadro K510M *
Radeon HD 5570
Radeon HD 7630M
Radeon HD 6530M
Radeon HD 6550D *
A9 / PowerVR GT7600
Mali-T880 MP12
Mobility Radeon HD 565v
Radeon HD 6645G2 *
Radeon HD 6640G2 *
Mobility Radeon HD 5165
Mobility Radeon HD 560v
GeForce GT 220
Quadro NVS 5100M
Radeon HD 7490M *
Radeon HD 7510M *
Mali-G71 MP2 *
Radeon R4 (Stoney Ridge)
Radeon R2 (Stoney Ridge)
HD Graphics (Broadwell)
Radeon HD 6450 GDDR5
Radeon HD 6545G2 *
Radeon HD 6540G2 *
Radeon HD 6515G2 *
Mali-G72 MP3 *
Radeon HD 6510G2 *
Mali-T760 MP6
Mali-T880 MP2
Mali-G51 MP4 *
PowerVR GE8320 *
PowerVR GE8100 *
Class 5
Adreno 616 *
Radeon HD 7430M *
Mobility Radeon HD 5145
HD Graphics (Cherry Trail)
NVS 2100M
Radeon HD 6430M *
Radeon HD 6380G *
Radeon HD 6350M *
Radeon HD 4350
Radeon HD 6330M *
GeForce G 107M *
Adreno 512 *
PowerVR GX6250
Mali-T760 MP4
Chrome9HD *
Radeon HD 4225 *
Radeon HD 4100 *
Mali-T628 MP4
Adreno 509 *
Adreno 508 *
Adreno 506 *
Adreno 505 *
Mobility Radeon HD 3400 *
Mali-T860 MP2
Mali-T604 MP4
Quadro FX 350M
GeForce Tegra 4 *
Class 6
Mobility FireGL T2e
GeForce4 4200 Go
Mobility FireGL T2
Mobility Radeon 9550
GeForce Go 6250
Quadro FX Go 1000
Radeon Xpress 1250
Mali-T624
Mali-T760 MP2
Mali-T720 MP4
Mali-450 MP4
GeForce 7190M *
SGX543MP3 *
Mobility FireGL 9000
GeForce 4 488 Go
GeForce 4 460 Go
GeForce 4 440 Go
GeForce 4 420 Go
SGX544MP2 *
Adreno 308
Adreno 306
Adreno 304
GC7000UL
Mobility FireGL 7800
Adreno 225 *
GC4000 *
Mali-400 MP4 *
VideoCore-IV *
Adreno 220 *
Mali-400 MP2 *
Mali-400 MP *
Graphics Media Accelerator (GMA) 600 *
SGX540 *
Adreno 205 *
GC800 *
SGX535
SGX531
SGX530
Adreno 200 *
Mali-200 *
GeForce 3 Go *
Mobility Radeon 9100 IGP
Mobility Radeon 9000 IGP
Mobility Radeon M7
Mobility Radeon 7000 IGP
Radeon IGP 340M
Radeon IGP 320M
Mirage M661FX
S3 Graphics ProSavage8
Mobility 128 M3
unknown *
Posición aproximada del adaptador gráfico
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Klaus Hinum (Update: 2014-11-30)
