AMD Radeon Pro Vega 56 vs NVIDIA GeForce RTX 5090 Comparison

The recorded data places the NVIDIA GeForce RTX 5090 and the AMD Radeon Pro Vega 56 in very different performance tiers. Across the two shared benchmark tests, the RTX 5090 wins both, with margins that reflect a generational gap in compute capability. The Vega 56, an end-of-life product from 2017, retains a high percentile ranking among all GPUs, but the RTX 5090 operates in a different class entirely.

Where Each One Wins

The RTX 5090 dominates every shared benchmark. In Geekbench OpenCL, the NVIDIA card scores 334,370 points against the Vega 56's 61,930, a difference of 439.9%. In Geekbench Vulkan, the gap is even wider: 376,728 versus 66,004, a 470.8% advantage. These are not close contests; the RTX 5090 is roughly five times faster in raw compute workloads.

The Vega 56's wins are contextual rather than benchmark-based. Its 89th percentile among all GPUs shows it remains a capable card for its era, and its nearest rivals in the database (AMD Radeon RX 7600M, RX 9060 XT LP, NVIDIA CMP 30HX) all score within 0.8% of it, indicating a tight cluster of mid-range performance. However, against the RTX 5090, there is no test where the Vega 56 takes the lead.

For use-case splits, the data points to the RTX 5090 for any compute-heavy task: OpenCL acceleration, Vulkan rendering, or modern DirectX 12 workloads. The Vega 56, with its 8 GB HBM2 memory and 8.96 TFLOPS FP32, suits lighter tasks or legacy applications where its GCN 5.0 architecture still functions. But the benchmark results show no scenario where the older card outperforms the newer one.

Architecture Differences

The two GPUs come from different manufacturing eras and design philosophies. The RTX 5090 uses the GB202 chip built on Blackwell 2.0 architecture, fabricated by TSMC on a 5 nm process. It packs 92,200 million transistors onto a 750 mm² die, yielding a transistor density of 122.9 million per square millimeter. The Vega 56 uses the Vega 10 chip with GCN 5.0 architecture, made by GlobalFoundries on a 14 nm process. Its 12,500 million transistors occupy a 495 mm² die, giving a density of 25.3 million per square millimeter.

The RTX 5090 features 21,760 shading units, 680 texture mapping units, and 176 render output units. It also includes 170 ray tracing cores and 680 tensor cores, neither of which the Vega 56 has at all. The Vega 56 offers 3,584 shading units, 224 TMUs, and 64 ROPs, with no dedicated RT or tensor hardware.

Memory configurations diverge sharply. The RTX 5090 carries 32 GB of GDDR7 on a 512-bit bus, achieving 1.79 TB/s of bandwidth. The Vega 56 has 8 GB of HBM2 on a 2048-bit bus, with 402.4 GB/s bandwidth. The bus width for Vega is wider, but the older HBM2 standard and lower clock speed limit its throughput.

Clock speeds also reflect the process node advantage. The RTX 5090 runs at a base of 2017 MHz and boosts to 2407 MHz. The Vega 56 sits at 1138 MHz base and 1250 MHz boost. Memory clocks follow suit: the RTX 5090's GDDR7 runs at 1750 MHz (28 Gbps effective), while the Vega 56's HBM2 stays at 786 MHz (1572 Mbps effective).

Compute rates show the scale of difference. The RTX 5090 delivers 104.8 TFLOPS FP32 and the same 104.8 TFLOPS FP16 at a 1:1 ratio. The Vega 56 produces 8.96 TFLOPS FP32 and 17.92 TFLOPS FP16 at a 2:1 ratio. Pixel and texture rates: 423.6 GPixel/s and 1,636.8 GTexel/s for NVIDIA, versus 80.00 GPixel/s and 280.0 GTexel/s for AMD.

FAQ

Q: How much faster is the RTX 5090 in OpenCL compute?

A: The RTX 5090 scores 334,370 in Geekbench OpenCL, while the Vega 56 scores 61,930. That is a 439.9% advantage for NVIDIA.

Q: Does the Vega 56 support ray tracing or tensor cores?

A: No. The database lists no ray tracing cores and no tensor cores for the Vega 56. The RTX 5090 includes 170 RT cores and 680 tensor cores.

Q: What memory types do the two cards use?

A: The RTX 5090 uses 32 GB of GDDR7 with a 512-bit bus and 1.79 TB/s bandwidth. The Vega 56 uses 8 GB of HBM2 with a 2048-bit bus and 402.4 GB/s bandwidth.

Q: Which card has a higher transistor density?

A: The RTX 5090 has 122.9 million transistors per square millimeter on a 5 nm process. The Vega 56 has 25.3 million per square millimeter on a 14 nm process.

Q: What is the difference in Vulkan performance?

A: The RTX 5090 scores 376,728 in Geekbench Vulkan versus 66,004 for the Vega 56, a 470.8% lead for NVIDIA.

Q: Is the Vega 56 still competitive with other GPUs?

A: Yes, within its own generation. The Vega 56 sits at the 89th percentile among all GPUs, and its nearest rivals in the database, such as the AMD Radeon RX 7600M and NVIDIA CMP 30HX, score within 0.2% of it.

Specification Differences

The two cards differ in nearly every measurable specification. Process node: 5 nm for NVIDIA versus 14 nm for AMD. Transistor count: 92,200 million versus 12,500 million. Die size: 750 mm² versus 495 mm². Transistor density: 122.9 million per mm² versus 25.3 million per mm².

Shading units: 21,760 versus 3,584. TMUs: 680 versus 224. ROPs: 176 versus 64. RT cores: 170 versus none. Tensor cores: 680 versus none. Base clock: 2017 MHz versus 1138 MHz. Boost clock: 2407 MHz versus 1250 MHz. Memory clock: 1750 MHz (28 Gbps effective) versus 786 MHz (1572 Mbps effective).

Memory size: 32 GB versus 8 GB. Memory type: GDDR7 versus HBM2. Bus width: 512-bit versus 2048-bit. Bandwidth: 1.79 TB/s versus 402.4 GB/s. FP32: 104.8 TFLOPS versus 8.96 TFLOPS. FP16: 104.8 TFLOPS versus 17.92 TFLOPS. Pixel rate: 423.6 GPixel/s versus 80.00 GPixel/s. Texture rate: 1,636.8 GTexel/s versus 280.0 GTexel/s.

Power and physical specs differ too. The RTX 5090 has a TDP of 575 W, requires a 1x 16-pin power connector, and suggests a 950 W power supply. It is a dual-slot card measuring 304 mm in length, 137 mm in height, and 40 mm in width. The Vega 56 has a TDP of 210 W, uses no power connectors, and is listed as IGP slot width with no dimensions recorded. The RTX 5090 uses PCIe 5.0 x16; the Vega 56 uses PCIe 3.0 x16.

Display outputs: the RTX 5090 offers 1x HDMI 2.1b and 3x DisplayPort 2.1b. The Vega 56 offers 1x HDMI 2.0b and 3x DisplayPort 1.4a. API support: DirectX 12 Ultimate (12_2) for NVIDIA versus DirectX 12 (12_1) for AMD. Vulkan versions are 1.4 and 1.3, respectively. OpenGL is 4.6 for both.

Production status and release dates: the RTX 5090 is active, released on 2025-01-29, with a launch MSRP of 1,999 USD. The Vega 56 is end-of-life, released on 2017-08-13, with no launch MSRP recorded.

Head-to-Head Benchmarks

Only two tests appear in the head-to-head comparison, and the RTX 5090 wins both decisively.

Geekbench OpenCL: The RTX 5090 records 334,370 points. The Vega 56 records 61,930 points. The delta is 439.9% in favor of NVIDIA. This test measures general-purpose compute across the GPU, and the results indicate the RTX 5090's 104.8 TFLOPS FP32 throughput dwarfs the Vega 56's 8.96 TFLOPS. The 32 GB of GDDR7 bandwidth at 1.79 TB/s also feeds the compute units far faster than the Vega 56's 402.4 GB/s HBM2.

Geekbench Vulkan: The RTX 5090 scores 376,728, while the Vega 56 scores 66,004. The delta is 470.8%. Vulkan workloads benefit from the RTX 5090's newer architecture, higher clock speeds, and dedicated tensor cores, even though this test does not specifically target RT or tensor operations. The Vega 56's GCN 5.0 design, from 2017, simply cannot match the per-clock efficiency of Blackwell 2.0.

Looking at broader benchmark data, the RTX 5090 also holds a 92nd percentile among all GPUs, with an average benchmark score of 79,842. Its nearest rivals in the database are the NVIDIA Tesla P100 PCIe 16 GB (scoring 79,605, within 0.3%), the Tesla P100 PCIe 12 GB (79,396, within 0.6%), and the AMD Radeon RX 6850M XT (78,940, within 1.1%). The Vega 56, at the 89th percentile with an average score of 63,693, sits close to cards like the AMD Radeon RX 7600M (63,775, within 0.1%) and the AMD Radeon Pro WX 9100 (64,212, within 0.8%). These clusters show that the RTX 5090 competes with professional Tesla-class accelerators, while the Vega 56 aligns with mid-range mobile and workstation parts.

The RTX 5090 also has additional benchmark results not shared with the Vega 56: 3DMark Steel Nomad DX12 (18,355), PassMark DirectX 10 (226), DirectX 11 (341), DirectX 12 (185), DirectX 9 (395), G2D (1,413), G3D (39,650), and GPU Compute (26,756). The Vega 56 only lists Geekbench Metal (63,145) as an exclusive test. This means the Vega 56's only unique data point is its Metal score, which the RTX 5090 does not have recorded.

The Verdict

The data leaves no ambiguity. For any workload measured in the database, the NVIDIA GeForce RTX 5090 is the superior card. It wins both shared benchmarks by margins of 439.9% and 470.8%, and its average benchmark score of 79,842 is 25.4% higher than the Vega 56's 63,693. The RTX 5090 also has a higher percentile ranking (92 versus 89) and a more recent production status.

Who should pick the RTX 5090? Anyone running modern DirectX 12 Ultimate applications, Vulkan workloads, or OpenCL compute tasks that demand maximum throughput. Its 32 GB GDDR7 memory, 170 RT cores, and 680 tensor cores make it suitable for future-facing rendering and AI-adjacent tasks, though the database does not include specific tests for those features. The 575 W TDP and 950 W suggested PSU indicate a high-power component, but the performance return is proportional.

Who should pick the Vega 56? The 89th percentile ranking shows it is not obsolete. Users with legacy PCIe 3.0 systems, those constrained to a 210 W power envelope, or those running Metal-specific applications (where it scores 63,145) may find it adequate. Its 8 GB HBM2 memory and 402.4 GB/s bandwidth are small but functional for lighter workloads. However, the Vega 56 is end-of-life, has no ray tracing support, no tensor cores, and no recorded dimensions, which limits its appeal for new builds.

The verdict is straightforward: the RTX 5090 is a current-generation flagship with top-tier compute and memory resources. The Vega 56 is a legacy part that remains near its performance peers from its own time but cannot compete with the newer card on any measured metric. Buyers seeking maximum benchmark performance should choose the RTX 5090. Buyers with modest power budgets or older platform constraints might still use the Vega 56, but the recorded data shows they will sacrifice roughly five-fold performance in OpenCL and Vulkan.