AMD Radeon R9 M265X vs NVIDIA Quadro K5000 Comparison

NVIDIA Quadro K5000 and AMD Radeon R9 M265X are both end-of-life graphics solutions, but they target fundamentally different segments. The Quadro K5000 is a dual-slot workstation card built on the GK104 chip, while the Radeon R9 M265X is a mobile-class part using the Venus chip. Benchmark data shows the Quadro K5000 holds a decisive edge in the single available head-to-head test, but the R9 M265X’s lower absolute scores place it in a different performance tier. This analysis relies strictly on the provided benchmark results, architectural specifications, and nearest-rival comparisons.

Where Each One Wins

The NVIDIA Quadro K5000 wins the only direct comparison available in the data. In the Geekbench OpenCL test, the Quadro K5000 scores 11,418 points against the Radeon R9 M265X’s 8,851 points. That is a 29% advantage for the Quadro K5000, a substantial margin that reflects its larger compute footprint. The Quadro K5000 also appears in three additional benchmark entries: Geekbench Metal at 6,324, Geekbench Vulkan at 11,169, and an average benchmark score of 9,637. Its percentile ranking of 46 places it just below the midpoint of all GPUs, meaning it outperforms roughly half of the tracked graphics hardware.

The AMD Radeon R9 M265X has no benchmark wins in this dataset. Its only recorded benchmark is Geekbench OpenCL with a score of 8,851, which also serves as its average benchmark score. The R9 M265X sits at the 44th percentile among all GPUs, two points lower than the Quadro K5000. While the R9 M265X lacks the Vulkan and Metal scores that the Quadro K5000 provides, its OpenCL result is sufficient to position it near a cluster of modern and older discrete parts. The nearest rivals for the R9 M265X include the AMD Radeon Pro WX 5100 (8,863 average score, 0.1% higher), the AMD Radeon 550X (8,918, 0.8% higher), the NVIDIA GeForce RTX 3050 A Mobile (8,746, 1.2% lower), and the NVIDIA GeForce GTX 460 v2 (8,743, 1.2% lower). This tight grouping suggests the R9 M265X delivers compute performance comparable to a wide range of both entry-level professional and older gaming cards.

Where each product wins is therefore clear: the Quadro K5000 wins on raw compute throughput in OpenCL, and it offers additional API coverage through Vulkan and Metal benchmarks. The R9 M265X does not win anywhere in the provided data, but its performance profile is consistent with a low-power mobile part that trades compute density for efficiency.

The Verdict

The data points to the NVIDIA Quadro K5000 as the stronger performer for any workload that relies on OpenCL compute. With a 29% lead over the R9 M265X in the head-to-head Geekbench OpenCL test, the Quadro K5000 delivers meaningfully higher throughput for general-purpose GPU tasks. Its average benchmark score of 9,637 also exceeds the R9 M265X’s 8,851 by roughly 9%. For users processing large datasets, rendering, or running compute-heavy simulations, the Quadro K5000 is the clear choice based on the numbers.

The AMD Radeon R9 M265X, however, should not be dismissed outright. Its 8,851 OpenCL score places it within 1.2% of the NVIDIA GeForce RTX 3050 A Mobile and within 0.8% of the AMD Radeon 550X, indicating it remains competitive with much newer entry-level parts. The R9 M265X also supports PCIe 3.0 x16, a faster bus interface than the Quadro K5000’s PCIe 2.0 x16, which could reduce data transfer bottlenecks in systems that support it. For compact or mobile deployments where the Quadro K5000’s 267 mm length and dual-slot footprint are impractical, the R9 M265X offers a smaller physical profile, though exact dimensions are not listed.

The decision hinges on workload priority. If compute performance is paramount and space is available, the Quadro K5000 wins unequivocally. If the task is lighter compute with a need for a smaller part, the R9 M265X provides adequate performance at a lower absolute score. The Quadro K5000 also carries a launch MSRP of 2,499 USD, which reflects its professional workstation positioning, while the R9 M265X has no listed launch MSRP. Neither product is current, so availability and driver support should be considered independently of these results.

Head-to-Head Benchmarks

The sole head-to-head benchmark between these two GPUs is Geekbench OpenCL. The NVIDIA Quadro K5000 scores 11,418, while the AMD Radeon R9 M265X scores 8,851. The delta is 29% in favor of the Quadro K5000. This is a substantial gap, and it correlates directly with the architectural differences between the two chips. The Quadro K5000 uses the GK104 die with 1,536 shading units, 128 texture mapping units, and 32 ROPs, whereas the R9 M265X uses the Venus die with 640 shading units, 40 TMUs, and 16 ROPs. The Quadro K5000 also runs at a higher base clock of 706 MHz compared to the R9 M265X’s 575 MHz base and 625 MHz boost. With roughly 2.4 times the shading units and a higher clock, the Quadro K5000’s FP32 throughput of 2.169 TFLOPS dwarfs the R9 M265X’s 800.0 GFLOPS.

Memory bandwidth further separates the two. The Quadro K5000 features a 256-bit bus with 4 GB of GDDR5 memory running at 1350 MHz (5.4 Gbps effective), yielding 172.8 GB/s of bandwidth. The R9 M265X has a 128-bit bus with 2 GB of GDDR5 at 1000 MHz (4 Gbps effective), producing only 64.00 GB/s. That is a 2.7-fold difference in bandwidth, which heavily impacts any memory-bound OpenCL workload. The pixel rate of the Quadro K5000 is 22.59 GPixel/s versus 10.00 GPixel/s for the R9 M265X, and the texture rate is 90.37 GTexel/s versus 25.00 GTexel/s. Every measurable throughput metric in the head-to-head favors the Quadro K5000 by a wide margin.

The nearest rival data reinforces this hierarchy. The Quadro K5000’s closest competitor is the NVIDIA GeForce GTX 960M with an average score of 9,645, just 0.1% higher. The AMD Radeon Pro WX 2100 (9,653, 0.2% higher) and NVIDIA Quadro P4000 (9,665, 0.3% higher) are also within a fraction of a percent. This shows that the Quadro K5000’s average performance is right at the boundary between mid-range mobile and entry-level professional cards. The R9 M265X, by contrast, sits in a cluster where the nearest rival is the AMD Radeon Pro WX 5100 at 8,863, only 0.1% above, and the NVIDIA GeForce GTX 460 v2 at 8,743, 1.2% below. The R9 M265X is effectively a peer of those older or lower-tier parts, not a challenger to the Quadro K5000.

FAQ

Q: Which GPU has a higher Geekbench OpenCL score?

A: The NVIDIA Quadro K5000 scores 11,418, which is 29% higher than the AMD Radeon R9 M265X’s 8,851.

Q: How does the Quadro K5000’s average benchmark score compare to its nearest rival?

A: The Quadro K5000’s average benchmark score is 9,637. Its closest rival, the NVIDIA GeForce GTX 960M, scores 9,645, which is 0.1% higher. The Quadro P4000 is 0.3% higher at 9,665.

Q: What is the memory bandwidth of each GPU?

A: The Quadro K5000 has 172.8 GB/s of bandwidth from a 256-bit bus and 4 GB of GDDR5. The R9 M265X has 64.00 GB/s from a 128-bit bus and 2 GB of GDDR5.

Q: Does the R9 M265X have any benchmark wins over the Quadro K5000?

A: No. In the only head-to-head test (Geekbench OpenCL), the Quadro K5000 wins. The R9 M265X has zero wins in the dataset.

Q: Which GPU supports a newer PCIe interface?

A: The AMD Radeon R9 M265X supports PCIe 3.0 x16, while the NVIDIA Quadro K5000 supports PCIe 2.0 x16.

Q: What is the transistor density difference between the two chips?

A: The Quadro K5000’s GK104 has a transistor density of 12.0 million per mm² (3,540 million transistors on 294 mm²). The R9 M265X’s Venus chip has a density of 12.2 million per mm² (1,500 million transistors on 123 mm²). The densities are nearly identical, but the Quadro K5000 uses a much larger die.

Architecture Differences

The NVIDIA Quadro K5000 is built on the Kepler architecture using the GK104 chip, fabricated by TSMC on a 28 nm process. The die contains 3,540 million transistors across a 294 mm² area, resulting in a transistor density of 12.0 million per mm². The GPU is configured with 1,536 shading units, 128 TMUs, and 32 ROPs. Base and boost clocks are both 706 MHz, with memory clocked at 1350 MHz (5.4 Gbps effective). The memory subsystem consists of 4 GB of GDDR5 on a 256-bit bus, providing 172.8 GB/s of bandwidth. Compute rates are 22.59 GPixel/s for pixels, 90.37 GTexel/s for textures, and 2.169 TFLOPS for FP32. The card is dual-slot, 267 mm long, uses a single 6-pin power connector, and has a TDP of 122 W. It supports PCIe 2.0 x16 and offers display outputs of 2x DVI and 2x DisplayPort 1.2. API support includes DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175.

The AMD Radeon R9 M265X is based on the GCN 1.0 architecture with the Venus chip, also fabricated by TSMC on 28 nm. The die is much smaller at 123 mm², containing 1,500 million transistors for a density of 12.2 million per mm². The GPU has 640 shading units, 40 TMUs, and 16 ROPs. Base clock is 575 MHz with a boost of 625 MHz; memory runs at 1000 MHz (4 Gbps effective). Memory capacity is 2 GB of GDDR5 on a 128-bit bus, yielding 64.00 GB/s of bandwidth. Pixel rate is 10.00 GPixel/s, texture rate is 25.00 GTexel/s, and FP32 throughput is 800.0 GFLOPS. No TDP, slot width, or power connector details are listed. It uses PCIe 3.0 x16 and supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170.

The core difference is scale. The Quadro K5000 packs more than twice the shading units, three times the TMUs, and twice the ROPs of the R9 M265X. Its memory bus is twice as wide, and its bandwidth is 2.7 times higher. The Quadro K5000 also runs at a higher clock speed despite having a larger die, which is notable given its 122 W TDP. The R9 M265X compensates with a newer PCIe 3.0 interface and a smaller physical footprint, but those advantages do not translate into higher compute scores. The transistor densities are nearly identical, indicating both chips use similar process efficiency; the Quadro K5000 simply uses a larger area to deliver more performance. In terms of feature set, the Quadro K5000’s display outputs and dual-slot design are typical of a workstation card, while the R9 M265X has no listed display outputs, reflecting its mobile-oriented design. The production status for both is end-of-life, with the Quadro K5000 releasing in August 2012 and the R9 M265X in March 2014.