AMD Radeon Pro 455 vs AMD Radeon RX 570X Comparison

Head-to-Head Benchmarks

The recorded data includes only one direct head-to-head benchmark between these two GPUs, and it is a decisive result. In the Geekbench OpenCL test, the AMD Radeon RX 570X scores 38,939 points, while the AMD Radeon Pro 455 scores 10,336 points. The delta is 276.7% in favor of the RX 570X, meaning the desktop Polaris card delivers nearly four times the raw compute throughput of the mobile Pro part in this specific workload. That is not a marginal gap; it is a generational chasm in OpenCL performance.

Looking at the broader database averages, the RX 570X holds an average benchmark score of 13,871 across all recorded tests, while the Pro 455 sits at 12,831. That is a difference of roughly 8.1% in overall average performance. The percentile ranks tell a similar story: the RX 570X places in the 55th percentile of all GPUs, while the Pro 455 lands in the 52nd percentile. These are close overall standings, but the head-to-head OpenCL result is anything but close.

The RX 570X's nearest rivals in the database include the NVIDIA RTX A2000 Mobile at an average score of 13,821 (0.4% behind), the AMD Radeon 660M at 13,812 (0.4% behind), and the AMD Radeon RX 7900 XT at 13,745 (0.9% behind). The only rival ahead of it in the recorded neighbor set is the NVIDIA Tesla K10 at 14,029, which leads by 1.1%. This suggests the RX 570X sits in a tight cluster where small score differences separate peers, yet its OpenCL output towers over the Pro 455.

For the Pro 455, its nearest rivals are the NVIDIA GeForce GTX 590 at 12,830 (0% delta), the AMD FirePro W5100 at 12,847 (0.1% ahead), the AMD Radeon 740M at 12,870 (0.3% ahead), and the NVIDIA GeForce GTX 670 at 12,773 (0.5% behind). The Pro 455 is effectively locked in a dead heat with a decade-old flagship GeForce and a workstation FirePro card, which contextualizes its position as a mid-tier mobile part from 2016.

The single head-to-head win count is 1 for the RX 570X and 0 for the Pro 455. No other shared benchmark tests exist in the database, so the OpenCL result is the only direct comparison available. That one result, however, is overwhelming enough to define the relationship between these two cards.

Where Each One Wins

The AMD Radeon RX 570X wins in every category where both cards have recorded data. Its Geekbench OpenCL score of 38,939 versus 10,336 is the only direct matchup, and it wins that outright. The RX 570X also carries a higher average benchmark score of 13,871 against the Pro 455's 12,831, giving it the overall performance edge in the database. Its 55th percentile ranking versus the Pro 455's 52nd reinforces that the RX 570X is the stronger part on aggregate.

The Pro 455, by contrast, has no recorded wins in any shared test. It does have additional benchmark entries that the RX 570X lacks, specifically a Geekbench Metal score of 15,916 and a Geekbench Vulkan score of 12,240. Those results cannot be compared directly to the RX 570X because the database has no corresponding Metal or Vulkan scores for the desktop card. The Pro 455 also has an OpenCL score of 10,336, which is its weakest recorded result across the three APIs it was tested with.

In terms of use cases, the RX 570X is the clear choice for compute-heavy OpenCL workloads. Its 5.095 TFLOPS of FP32 throughput and 5.095 TFLOPS of FP16 (1:1 ratio) dwarf the Pro 455's 1,313.3 GFLOPS in both precision formats. The RX 570X also offers far higher memory bandwidth at 224.0 GB/s versus 81.28 GB/s, which matters for large data sets and texture-heavy rendering. The Pro 455's 81.28 GB/s bandwidth and 2 GB memory capacity are limiting factors for modern workloads, while the RX 570X's 8 GB GDDR5 on a 256-bit bus provides substantially more headroom.

The Pro 455, however, has one advantage: power efficiency. Its TDP is 35 W, while the RX 570X draws 150 W. In a portable or thermally constrained system, the Pro 455's lower power draw is meaningful. But that efficiency does not translate into a performance win in any recorded benchmark. The Pro 455 also uses a PCIe 3.0 x8 interface versus the RX 570X's PCIe 3.0 x16, further limiting its data transfer ceiling.

The Verdict

The data is unambiguous. The AMD Radeon RX 570X is the faster GPU by every recorded metric. In OpenCL, it leads by 276.7%, a crushing margin. Its average benchmark score is 8.1% higher, its percentile rank is 3 points higher, and it wins the only head-to-head test in the database. Anyone choosing between these two for compute tasks should select the RX 570X without hesitation.

The Pro 455 is not without merit, but its merits are not performance-based. It consumes only 35 W, making it suitable for thin-and-light laptops or MXM-module systems where power and space are at a premium. Its Metal score of 15,916 and Vulkan score of 12,240 show it can handle graphics APIs competently for its class. But against the RX 570X specifically, it loses the only shared benchmark by a factor of nearly four.

For gaming, the RX 570X's 8 GB GDDR5 memory and 224.0 GB/s bandwidth are vastly superior to the Pro 455's 2 GB and 81.28 GB/s. The RX 570X also has higher pixel rate (39.81 GPixel/s versus 13.68 GPixel/s) and texture rate (159.2 GTexel/s versus 41.04 GTexel/s), which translates to higher fill rates in real-time rendering. The Pro 455's 16 ROPs and 48 TMUs are a fraction of the RX 570X's 32 ROPs and 128 TMUs.

The verdict is simple: the RX 570X for anyone needing raw performance, the Pro 455 for anyone constrained by power or form factor. The Pro 455's only advantages are its 35 W TDP, MXM form factor, and portable-device-dependent display outputs, none of which help in a benchmark comparison. The RX 570X is end-of-life, as is the Pro 455, so neither is a future-proof investment, but the RX 570X is the stronger legacy part.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon RX 570X has an average benchmark score of 13,871, while the AMD Radeon Pro 455 has an average of 12,831.

Q: How large is the performance gap in the only shared benchmark?

A: In Geekbench OpenCL, the RX 570X scores 38,939 versus the Pro 455's 10,336, a delta of 276.7% in favor of the RX 570X.

Q: Does the Pro 455 have any benchmark wins over the RX 570X?

A: No. The database records 1 win for the RX 570X and 0 wins for the Pro 455 in head-to-head tests.

Q: What memory configurations do these cards use?

A: The RX 570X has 8 GB of GDDR5 on a 256-bit bus with 224.0 GB/s bandwidth. The Pro 455 has 2 GB of GDDR5 on a 128-bit bus with 81.28 GB/s bandwidth.

Q: What are the power consumption figures?

A: The RX 570X has a TDP of 150 W with a 1x 6-pin power connector. The Pro 455 has a TDP of 35 W and requires no power connectors.

Q: How do their percentile rankings compare?

A: The RX 570X is in the 55th percentile of all GPUs, while the Pro 455 is in the 52nd percentile.

Architecture Differences

Both GPUs are built on AMD's GCN 4.0 architecture and use a 14 nm process node at GlobalFoundries, but they diverge sharply in scale. The RX 570X uses the Polaris 20 chip, which contains 5,700 million transistors on a 232 mm² die, for a transistor density of 24.6M per mm². The Pro 455 uses the Baffin chip, with 3,000 million transistors on a 123 mm² die, for a density of 24.4M per mm². The density is nearly identical, confirming the same process technology, but the RX 570X packs nearly twice the silicon area and 90% more transistors.

The compute resources differ by a similar factor. The RX 570X has 2,048 shading units, 128 texture mapping units, and 32 ROPs. The Pro 455 has 768 shading units, 48 TMUs, and 16 ROPs. That is 2.7 times more shaders, 2.7 times more TMUs, and twice the ROPs on the RX 570X. The clock speeds reflect this too: the RX 570X runs at a base of 1168 MHz and a boost of 1244 MHz, while the Pro 455 has no recorded base or boost clocks in the database.

Memory architecture is another major split. The RX 570X uses 8 GB of GDDR5 on a 256-bit bus, running at 1750 MHz (7 Gbps effective), yielding 224.0 GB/s of bandwidth. The Pro 455 uses 2 GB of GDDR5 on a 128-bit bus, running at 1270 MHz (5.1 Gbps effective), yielding 81.28 GB/s. The bandwidth difference is 2.75 times in favor of the RX 570X, and the capacity difference is 4 times.

Theoretical throughput numbers reinforce the gap. The RX 570X delivers 5.095 TFLOPS of FP32 and FP16 compute at a 1:1 ratio. The Pro 455 delivers 1,313.3 GFLOPS, which is roughly 1.31 TFLOPS, in both precision formats. The RX 570X also has a pixel rate of 39.81 GPixel/s and a texture rate of 159.2 GTexel/s, versus 13.68 GPixel/s and 41.04 GTexel/s for the Pro 455.

The form factors differ completely. The RX 570X is a dual-slot card, 241 mm (9.5 inches) long, with a PCIe 3.0 x16 interface and display outputs including 1x DVI, 1x HDMI 2.0b, and 3x DisplayPort 1.4a. The Pro 455 is an MXM module with a PCIe 3.0 x8 interface and portable-device-dependent display outputs. The RX 570X requires a 450 W recommended PSU and a 1x 6-pin connector; the Pro 455 requires no external power connectors. Both support DirectX 12 (12_0), OpenGL 4.6, and Vulkan 1.3.

The release timeline also differs. The RX 570X was released in April 2018, while the Pro 455 was released in October 2016. The RX 570X belongs to the Polaris (RX 500X) generation and lists Polaris as its predecessor and Vega as its successor. The Pro 455 is part of the Radeon Pro Mac (400 Series) generation with no recorded predecessor or successor. Both are marked as end-of-life in the database.