AMD Radeon Pro WX 2100 vs AMD Radeon Vega 8 Comparison

The AMD Radeon Pro WX 2100 and the AMD Radeon Vega 8 represent two distinct approaches to graphics processing: a discrete, professional-grade card versus an integrated GPU embedded within a processor. The benchmark data shows a split decision, with each GPU claiming victory in one of the two head-to-head tests, making the choice between them heavily dependent on the specific workload. The Pro WX 2100, built on GCN 4.0, is a 14 nm part with 512 shading units, while the Vega 8, based on GCN 5.0, also packs 512 shading units but operates within a different power and memory context. Their average benchmark scores are close, with the WX 2100 at 9653 and the Vega 8 at 9221, a difference of roughly 4.5%, but the nature of their performance diverges sharply across different application programming interfaces.

Head-to-Head Benchmarks

The most striking divergence between these two GPUs appears in the Vulkan graphics API, where the AMD Radeon Pro WX 2100 delivers a decisive victory. In the Geekbench Vulkan test, the WX 2100 scores 10770, compared to the Vega 8’s 8134. This represents a 32.4% advantage for the discrete card, a substantial margin that indicates a significant performance gap in compute and graphics tasks that leverage Vulkan’s low-level overhead. This is the largest win for either GPU in the head-to-head comparison, and it showcases the WX 2100's ability to handle demanding, modern graphics workloads with far greater efficiency than the integrated Vega 8. The WX 2100’s lead in this test is not a marginal edge; it is a dominant performance delta that would likely translate to noticeably higher frame rates or faster compute times in Vulkan-based applications.

Conversely, the AMD Radeon Vega 8 takes the win in the Geekbench OpenCL test, albeit by a much narrower margin. The Vega 8 scores 8822, while the WX 2100 scores 8536, giving the integrated GPU a 3.2% lead. While this is a win for the Vega 8, the delta is small enough that it falls within the range of run-to-run variance, suggesting that in OpenCL workloads, the two GPUs are effectively comparable in performance. This result is interesting because it shows that the Vega 8, despite being an IGP with system-shared memory and a lower average benchmark score, can hold its own against a dedicated professional card in at least one API. It suggests that the Vega 8’s architecture, GCN 5.0, is well-optimized for OpenCL compute tasks, even with its memory bandwidth limitations.

Looking at the broader performance context, the data shows that the WX 2100 sits at the 46th percentile of all GPUs, while the Vega 8 is just behind at the 45th percentile. This near-identical ranking reinforces the idea that, on average, these two GPUs perform at a similar level, despite their architectural and physical differences. The average benchmark score for the WX 2100 is 9653, placing it in the company of the NVIDIA GeForce GTX 960M (9645, a 0.1% delta) and the NVIDIA Quadro P4000 (9665, a -0.1% delta). The Vega 8’s average score of 9221 aligns it with the AMD Radeon 890M (9210, a 0.1% delta) and the NVIDIA GeForce GTX 960 (9273, a -0.6% delta). These rival comparisons show that both AMD GPUs are competitive with mid-range hardware from NVIDIA, but their strengths are clearly segmented by API.

The Verdict

The data presents a clear, albeit nuanced, verdict for potential users. The AMD Radeon Pro WX 2100 is the superior choice for any workload that relies heavily on the Vulkan API. Its 32.4% lead in the Geekbench Vulkan test is the single largest performance gap recorded in the comparison, and it indicates that this discrete GPU is the better option for modern gaming, VR, or compute applications that utilize Vulkan’s direct hardware access. For users who prioritize this API, the WX 2100 is unequivocally the stronger performer, despite its older GCN 4.0 architecture and lower transistor density.

On the other hand, the AMD Radeon Vega 8 is the better pick for users who primarily work with OpenCL. Its 3.2% lead in the Geekbench OpenCL test, while narrow, shows that the integrated GPU is not a slouch in compute tasks. This makes the Vega 8 a surprisingly capable option for OpenCL-based applications like video encoding, physics simulations, or certain productivity tools, especially considering it consumes less power (25 W TDP vs 35 W) and requires no additional cooling or power connectors. The trade-off is that the Vega 8 loses significantly in Vulkan performance, so users who do a mix of both workloads would have to weigh the importance of each API.

Ultimately, the choice comes down to the software environment. If the user’s primary applications are Vulkan-based, the WX 2100 is the clear winner, delivering over 30% more performance. If OpenCL is the primary API, the Vega 8 offers a marginal performance edge with a lower power draw and a simpler, integrated form factor. The data does not support a universal winner; instead, it highlights two GPUs with complementary strengths, where the correct selection depends entirely on the intended use case. The WX 2100 is for the performance-focused user in Vulkan, while the Vega 8 is for the efficiency-focused user in OpenCL.

Architecture Differences

The architectural divide between these two GPUs is significant, stemming from different generations of AMD’s Graphics Core Next (GCN) design. The AMD Radeon Pro WX 2100 is built on the GCN 4.0 architecture, utilizing the Lexa chip. This is a discrete GPU design that has been optimized for professional workloads, featuring a dedicated 2 GB of GDDR5 memory on a 64-bit bus. In contrast, the AMD Radeon Vega 8 is based on the newer GCN 5.0 architecture, using the Raven chip. This is an integrated graphics processor (IGP) designed to be part of a larger system-on-chip, and it relies entirely on system-shared memory for its frame buffer, with bandwidth listed as "System Dependent." This fundamental difference in memory architecture is a critical factor, as the WX 2100’s dedicated memory provides consistent 48.00 GB/s of bandwidth, while the Vega 8’s performance is tied to the speed and configuration of the host system’s RAM.

The manufacturing process and die characteristics also differ. Both GPUs are fabricated on a 14 nm process at GlobalFoundries, but the transistor counts and die sizes are vastly different. The WX 2100’s Lexa chip contains 2,200 million transistors on a 103 mm² die, resulting in a transistor density of 21.4 million per mm². The Vega 8’s Raven chip is much larger, containing 4,940 million transistors on a 210 mm² die, with a higher density of 23.5 million per mm². This larger die size for the Vega 8 is expected, as it likely includes the CPU cores and other system components on the same piece of silicon, whereas the WX 2100 is a dedicated GPU only. The architectural generation difference also affects the FP16 performance, with the WX 2100 offering 1,248.3 GFLOPS (1:1 ratio) and the Vega 8 offering 2.253 TFLOPS (2:1 ratio), indicating a different approach to half-precision computing.

Feature support further differentiates the two. The WX 2100 supports DirectX 12 (12_0), while the Vega 8 supports DirectX 12 (12_1), a higher feature level. Both support OpenGL 4.6 and Vulkan 1.3. The WX 2100 is a single-slot card with no power connectors, while the Vega 8 is an IGP with no physical dimensions, relying on the motherboard for its display outputs. These architectural and feature differences mean that while both GPUs have the same number of shading units (512) and TMUs (32), the Vega 8 has only 8 ROPs compared to the WX 2100’s 16, which directly contributes to its lower pixel fill rate.

Specification Differences

The specification sheets for these two GPUs show several key differences, beyond the architectural generational gap. The most prominent difference is in memory configuration. The AMD Radeon Pro WX 2100 comes with 2 GB of dedicated GDDR5 memory, a 64-bit bus, and 48.00 GB/s of bandwidth. The AMD Radeon Vega 8, being an IGP, has "System Shared" memory, a "System Shared" bus width, and "System Dependent" bandwidth, meaning its performance is contingent on the system’s main memory. This is a critical distinction for users who need guaranteed memory performance, as the WX 2100 offers a fixed, dedicated pool, while the Vega 8 shares resources with the CPU.

Clock speeds are also notably different. The WX 2100 has a base clock of 925 MHz and a boost clock of 1219 MHz, with its memory running at 1500 MHz (6 Gbps effective). The Vega 8 has a much lower base clock of 300 MHz and a boost clock of 1100 MHz, reflecting its power-saving integrated nature. This clock speed difference contributes to the WX 2100’s higher pixel rate of 19.50 GPixel/s and texture rate of 39.01 GTexel/s, compared to the Vega 8’s 8.800 GPixel/s and 35.20 GTexel/s. The WX 2100 also has double the ROPs (16 vs 8), which explains its significant lead in pixel fill rate.

Power and physical specifications differ as well. The WX 2100 has a TDP of 35 W and a suggested PSU of 200 W, while the Vega 8 has a TDP of 25 W and no suggested PSU, as it draws power from the motherboard. The WX 2100 is a single-slot, 168 mm long card with display outputs of 1x DisplayPort 1.4a and 2x mini-DisplayPort 1.4a. The Vega 8 is an IGP with no physical dimensions and its display outputs are "Motherboard Dependent." Finally, the WX 2100 was released on 2017-06-03 with a launch MSRP of 149 USD, while the Vega 8 was released later on 2018-02-11 with no launch MSRP.

FAQ

Q: Which GPU has a higher average benchmark score?

A: The AMD Radeon Pro WX 2100 has a higher average benchmark score of 9653, compared to the AMD Radeon Vega 8’s 9221.

Q: How much faster is the WX 2100 in the Vulkan test?

A: The WX 2100 scores 10770 in Geekbench Vulkan, which is 32.4% higher than the Vega 8’s score of 8134.

Q: Does the Vega 8 win any benchmark against the WX 2100?

A: Yes, the Vega 8 wins the Geekbench OpenCL test with a score of 8822, which is 3.2% higher than the WX 2100’s 8536.

Q: What is the difference in ROP count between the two GPUs?

A: The AMD Radeon Pro WX 2100 has 16 ROPs, while the AMD Radeon Vega 8 has 8 ROPs.

Q: What is the process node for both GPUs?

A: Both the AMD Radeon Pro WX 2100 and the AMD Radeon Vega 8 are fabricated on a 14 nm process at GlobalFoundries.

Q: What are the memory specifications for the Vega 8?

A: The AMD Radeon Vega 8 uses System Shared memory, with a System Shared bus width and System Dependent bandwidth, meaning it relies on the host system's RAM.