XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition
vs
SAPPHIRE PULSE RX 550 4G G5 LP
GPU comparison with benchmarksIn the gpu comparison between the XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition and the SAPPHIRE PULSE RX 550 4G G5 LP, we compare both the technical data and the benchmark results of the two graphics cards.
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GPUThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition is based on the AMD Radeon RX 7800 XT and has 3840 texture shaders and 60 execution units. SAPPHIRE PULSE RX 550 4G G5 LP is based on AMD Radeon RX 550 (Lexa), which has 512 shaders and 8 execution units. |
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| XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition | GPU | SAPPHIRE PULSE RX 550 4G G5 LP |
| AMD Radeon RX 7800 XT | Based on | AMD Radeon RX 550 (Lexa) |
| Navi 32 XT | GPU Chip | Lexa PRO |
| RDNA 3 | Architecture | GCN 4 |
| 60 | Streaming Multiprocessors | 8 |
| 3840 | Shader | 512 |
| 96 | Render Output Units | 16 |
| 240 | Texture Units | 32 |
| 60 | Raytracing Cores | 0 |
MemoryThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition has 16 GB of graphics memory of the type GDDR6 and achieves a memory bandwidth of 624 GB/s. The SAPPHIRE PULSE RX 550 4G G5 LP can access 4 GB GDDR5 graphics memory and thus achieves a memory bandwidth of 96 GB/s. |
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| 16 GB | Memory Size | 4 GB |
| GDDR6 | Memory Type | GDDR5 |
| 2.438 GHz | Memory Clock | 1.500 GHz |
| 19.5 Gbps | Memory Speed | 6.0 Gbps |
| 624 GB/s | Memory bandwidth | 96 GB/s |
| 256 bit | Memory Interface | 128 bit |
Clock SpeedsThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition clocks in the base with up to 1.800 GHz. The base frequency of the SAPPHIRE PULSE RX 550 4G G5 LP is 1.100 GHz. |
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| 1.800 GHz | Base Clock | 1.100 GHz |
| 2.565 GHz | Boost Clock | 1.206 GHz |
| 2.25 GHz | Avg (Game) Clock | |
| Yes | Overclocking | Yes |
Thermal DesignThe TDP (Thermal Design Power) of the XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition is 250 W (Reference). The graphics card is supplied with energy via the 2 x 8-Pin connector. The SAPPHIRE PULSE RX 550 4G G5 LP has a TDP of 65 W and is supplied with the required energy via PCIe power connectors. |
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| 250 W (Reference) | TDP | 65 W |
| -- | TDP (up) | -- |
| 96 °C | Tjunction max | 80 °C |
| 2 x 8-Pin | PCIe-Power | |
Cooler & FansThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition has a total of 3 Axial fans. The SAPPHIRE PULSE RX 550 4G G5 LP has 1 Axial fans to cool the GPU and memory. |
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| Axial | Fan-Type | Axial |
| 2 x 100 mm | Fan 1 | 1 x 90 mm |
| 1 x 90 mm | Fan 2 | -- |
| Air cooling | Cooler-Type | Air cooling |
| 0 dB | Noise (Idle) | dB |
| -- | Noise (Load) | -- |
ConnectivityIn the connectivity category, we recorded the number of ports on a graphics card. A total of 4 screens can be connected to the XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition. The SAPPHIRE PULSE RX 550 4G G5 LP supports a maximum of 4 screens. |
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| 4 | Max. Displays | 4 |
| 2.3 | HDCP-Version | 2.2 |
| 1x HDMI v2.1 | HDMI Ports | 1x HDMI v2.0b |
| 3x DP v2.1 | DP Ports | 1x DP v1.4 |
| -- | DVI Ports | 1 |
| -- | VGA Ports | -- |
| -- | USB-C Ports | -- |
FeaturesetThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition supports a maximum resolution of 7680x4320 pixels. The maximum resolution of the SAPPHIRE PULSE RX 550 4G G5 LP is 5120x2880 pixels. |
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| 7680x4320 | Max. resolution | 5120x2880 |
| 12_2 (Ultimate) | DirectX | 12 |
| Yes | Raytracing | No |
| Yes | DLSS / FSR | Yes |
| No LED lighting | LED | No LED lighting |
Supported Video CodecsThe support and acceleration of certain video codecs directly in the graphics card reduces the load when playing or creating videos. |
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| Decode / Encode | h264 | Decode / Encode |
| Decode / Encode | h265 / HEVC | Decode / Encode |
| Decode / Encode | AV1 | No |
| Decode / Encode | VP8 | Decode |
| Decode / Encode | VP9 | Decode |
DimensionsThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition is 326 mm long, 126 mm high and 58 mm wide. The SAPPHIRE PULSE RX 550 4G G5 LP is 180 mm long, 69 mm high and 38 mm wide. |
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| 326 mm | Length | 180 mm |
| 126 mm | Height | 69 mm |
| 58 mm | Width | 38 mm |
| 3 PCIe-Slots | Width (Slots) | 2 PCIe-Slots |
| -- | Weight | -- |
| PCIe 4 x 16 | GPU Interface | PCIe 3.0 x 8 |
Additional dataThe XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition was released in Q3/2023 at a price of 499 $ (Reference). The SAPPHIRE PULSE RX 550 4G G5 LP was introduced in Q4/2017 at a price of 79 $. |
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| RX-78TMERCB9 | Part-no | 11268-09 |
| Q3/2023 | Release date | Q4/2017 |
| 499 $ (Reference) | Launch Price | 79 $ |
| 5 nm | Structure size | 14 nm |
| data sheet | Documents | data sheet |
1.800 GHz, 16 GB (-- TDP)
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1.100 GHz, 4 GB (65 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 Speedster MERC 319 Radeon RX 7800 XT BLACK Edition
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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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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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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2560x1440 (1440p)
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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1920x1080 (1080p)
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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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 Speedster MERC 319 Radeon RX 7800 XT BLACK Edition
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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Geekbench 6 - Vulkan
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XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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Geekbench 6 - Metal
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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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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XFX Speedster MERC 319 Radeon RX 7800 XT BLACK Edition
16 GB GDDR6 |
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SAPPHIRE PULSE RX 550 4G G5 LP
4 GB GDDR5 |
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