XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy
vs
XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
GPU comparison with benchmarksThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy has 2304 shader units and these clock a maximum of 1.43 GHz which results in an FP32 computing power of 5.96 TFLOPS.
The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming has 5120 shader units and these clock at a maximum of 2.37 GHz and achieve an FP32 computing power of 24.10 TFLOPS. |
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GPUThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy is equipped with a graphics chip of the GCN 4 architecture, which has 36 streaming multiprocessors. The graphics card XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is based on the RDNA 2 architecture and is equipped with 80 execution units. |
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| XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy | GPU | XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming |
| AMD Radeon RX 580 (36 CU) | Based on | AMD Radeon RX 6950 XT |
| Polaris 20 XT | GPU Chip | Navi 21 KXTX |
| GCN 4 | Architecture | RDNA 2 |
| 36 | Streaming Multiprocessors | 80 |
| 2304 | Shader | 5120 |
| 32 | Render Output Units | 128 |
| 144 | Texture Units | 320 |
| 0 | Raytracing Cores | 80 |
MemoryThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy is equipped with a 8 GB large GDDR5 graphics memory, which is equipped with 2.025 GHz clocks. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming has a 16 GB large GDDR6 graphics memory and the memory clock is 2.250GHz. |
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| 8 GB | Memory Size | 16 GB |
| GDDR5 | Memory Type | GDDR6 |
| 2.025 GHz | Memory Clock | 2.250 GHz |
| 8.1 Gbps | Memory Speed | 18.0 Gbps |
| 259 GB/s | Memory bandwidth | 576 GB/s |
| 256 bit | Memory Interface | 256 bit |
Clock SpeedsThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy has a turbo clock of 1.425 GHz. The turbo frequency of the XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is 2.368 GHz. |
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| 1.257 GHz | Base Clock | 2.009 GHz |
| 1.425 GHz | Boost Clock | 2.368 GHz |
| Avg (Game) Clock | 2.16 GHz | |
| Yes | Overclocking | Yes |
Thermal DesignThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy has 1 x 8-Pin connectors through which it is supplied with power. The manufacturer specifies the maximum operating temperature of the graphics card as 90 °C. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is equipped with a 2 x 8-Pin PCIe power connector that supplies it with power. The maximum operating temperature of the card is 100 °C. |
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| 185 W | TDP | 405 W |
| -- | TDP (up) | -- |
| 90 °C | Tjunction max | 100 °C |
| 1 x 8-Pin | PCIe-Power | 2 x 8-Pin |
Cooler & FansThe graphics processor and graphics memory of the XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy are cooled with a Air cooling. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is cooled by a Air cooling. |
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| Axial | Fan-Type | Axial |
| 2 x 100 mm | Fan 1 | 2 x 90 mm |
| -- | Fan 2 | 1 x 80 mm |
| Air cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | 0 dB |
| -- | Noise (Load) | -- |
ConnectivityThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy supports the downward compatible copy protection HDCP in version 2.2. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming supports HDCP in version 2.3 and all previous versions. |
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| 4 | Max. Displays | 4 |
| 2.2 | HDCP-Version | 2.3 |
| 1x HDMI v2.0b | HDMI Ports | 1x HDMI v2.1 |
| 3x DP v1.4 | DP Ports | 3x DP v1.4a |
| 1 | DVI Ports | -- |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy supports the DirectX standard from Microsoft in version 12. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming supports Microsoft's DirectX version 12_2 (Ultimate). |
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| 7680x4320 | Max. resolution | 7680x4320 |
| 12 | DirectX | 12_2 (Ultimate) |
| No | Raytracing | Yes |
| Yes | DLSS / FSR | Yes |
| No LED lighting | LED | Addressable LED |
Supported Video CodecsThis area lists which video codecs can be decoded or encoded by the graphics cards in hardware. As a result, the power consumption can be reduced due to a lower processor load. |
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| Decode / Encode | h264 | Decode / Encode |
| Decode / Encode | h265 / HEVC | Decode / Encode |
| No | AV1 | Decode |
| Decode | VP8 | Decode / Encode |
| Decode | VP9 | Decode / Encode |
DimensionsThe XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy is 40 mm wide and therefore needs the space of 3 PCIe-Slots in the case. The width of the XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming is 40 mm and thus requires the space of 3 PCIe-Slots in the PC case. |
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| 270 mm | Length | 340 mm |
| 124 mm | Height | 139 mm |
| 40 mm | Width | 57 mm |
| 2 PCIe-Slots | Width (Slots) | 3 PCIe-Slots |
| -- | Weight | -- |
| PCIe 3.0 x 16 | GPU Interface | PCIe 4.0 x 16 |
Additional dataManufactured using the 14 nanometer process, XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy was released in Q2/2017. The XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming published in Q2/2022 is manufactured with a structure width of 7 nanometers. |
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| RX-580P8DBDR | Part-no | RX-695XATBD9 |
| Q2/2017 | Release date | Q2/2022 |
| 229 $ | Launch Price | 1,099 $ (Reference) |
| 14 nm | Structure size | 7 nm |
| data sheet | Documents | data sheet |
1.257 GHz, 8 GB (185 W TDP)
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2.009 GHz, 16 GB (405 W TDP)
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Benchmark results
3DMark Benchmark (DirectX, Raytracing)
3DMark is a benchmark program that determines the performance of certain components of a computer and then reports the performance as a numerical value.
Time Spy Extreme Graphics score
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XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy
8 GB GDDR5 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
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Port Royal (Raytracing)
Speed Way Graphics Score (Raytracing)
Cyberpunk 2077
Cyberpunk 2077 was developed by CD Projekt Red and is based on the development studio's own REDengine 4. Ray tracing is switched off in our benchmarks.
3840x2160 (2160p)
2560x1440 (1440p)
1920x1080 (1080p)
The Last of Us Part 1
The Last of Us Part One is a game released by Sony in June 2013 exclusively for the Playstation and released for the PC in early 2023. The benchmark values here were determined at high details.
3840x2160 (2160p)
2560x1440 (1440p)
1920x1080 (1080p)
Battlefield 5
Battlefield 5 is a visually stunning game that is ideal as a graphics card benchmark. We test the game with maximum details on Windows 10.
3840x2160 (2160p)
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XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy
8 GB GDDR5 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
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2560x1440 (1440p)
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XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy
8 GB GDDR5 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
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1920x1080 (1080p)
Geekbench 6 (OpenCL, Vulkan, Metal)
Geekbench 6 is a cross-platform benchmark for main processors, which also carries out 3 different graphics benchmarks and outputs them in the form of a numerical value.
Geekbench 6 - OpenCL
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XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy
8 GB GDDR5 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
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Geekbench 6 - Vulkan
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XFX Radeon RX 580 GTS Black Edition 8GB only a Best Buy
8 GB GDDR5 |
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XFX Speedster MERC 319 Radeon RX 6950 XT Black Gaming
16 GB GDDR6 |
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Geekbench 6 - Metal
FP32 Performance (Single-precision TFLOPS)
The theoretical computing power of the graphics card with single precision (32 bit) in TFLOPS indicates how many trillion FP32 floating point operations the graphics card (GPU) can perform per second.
FP32 (TFLOPS)
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