NVIDIA RTX 2000 Ada Generation vs NVIDIA Tesla K20m Comparison

The NVIDIA Tesla K20m and NVIDIA RTX 2000 Ada Generation represent two distinct eras of NVIDIA’s GPU design, separated by over a decade of architectural evolution. The data shows a clear generational shift: the RTX 2000 Ada Generation dominates in every shared benchmark, while the Tesla K20m offers legacy compute capabilities at a higher power draw. This analysis compares them directly using available benchmark scores, architectural details, and specification differences.

Head-to-Head Benchmarks

The only two benchmarks shared between these cards are Geekbench OpenCL and Geekbench Vulkan, and the results are decisively one-sided. In Geekbench OpenCL, the RTX 2000 Ada Generation scores 78,074, while the Tesla K20m manages only 16,241. That is a delta of -79.2% for the K20m, meaning the RTX 2000 Ada Generation is roughly 4.8 times faster in this compute workload. This is not a marginal lead; it is a complete rout that reflects the massive improvements in shader efficiency and memory bandwidth over the intervening years.

The Vulkan test tells a similar story. The RTX 2000 Ada Generation posts 83,360, compared to the Tesla K20m’s 21,936. The delta here is -73.7%, translating to about 3.8 times higher performance for the newer card. Vulkan is a modern API, so it is unsurprising that the older Kepler architecture struggles, but the magnitude of the gap highlights how far NVIDIA has come in both hardware and driver optimization.

Looking at the broader benchmark picture, the RTX 2000 Ada Generation’s average benchmark score is 18,954, which places it in the 63rd percentile of all GPUs. The Tesla K20m’s average is 19,089, putting it in the 64th percentile. Despite the older card winning none of the head-to-head tests, its average score is actually slightly higher—a quirk of the different benchmark suites each card was tested with. The K20m’s nearest rivals include the NVIDIA Quadro K6000 (average 19,030, delta 0.3%) and the AMD Radeon RX 6600 (average 19,036, delta 0.3%), while the RTX 2000 Ada Generation sits near the NVIDIA Tesla K80 (average 18,866, delta 0.5%) and the GeForce RTX 4050 Mobile (average 19,049, delta -0.5%). In practical terms, both cards perform within a few percentage points of each other in aggregate, but the RTX 2000 Ada Generation’s wins in the shared tests are what matter most for direct comparison.

The RTX 2000 Ada Generation also has a broader benchmark footprint, with scores in Passmark DirectX 9, 10, 11, and 12, plus Passmark G2D, G3D, and GPU Compute. Its best Passmark result is 216 in DirectX 9, while its G3D score is 16,927 and GPU Compute is 7,834. The Tesla K20m has no such data available, which limits direct comparisons to the two Geekbench tests. Still, the available numbers are unambiguous: the RTX 2000 Ada Generation is the faster card in every measurable way.

Architecture Differences

The architectural gap between these two GPUs is enormous. The Tesla K20m uses the GK110 chip on the Kepler architecture, built on a 28 nm process at TSMC. It packs 7,080 million transistors onto a die size of 561 mm², yielding a transistor density of 12.6 million per square millimeter. The RTX 2000 Ada Generation, by contrast, uses the AD107 chip on the Ada Lovelace architecture, fabricated on a 5 nm process, also at TSMC. It contains 18,900 million transistors on a much smaller 159 mm² die, achieving a density of 118.9 million per square millimeter—nearly ten times higher.

This density advantage translates directly into feature differences. The RTX 2000 Ada Generation includes 22 ray tracing cores and 88 tensor cores, neither of which exist on the Tesla K20m. The K20m is a pure rasterization and compute card from an era before dedicated RT and AI hardware. The RTX 2000 Ada Generation also supports DirectX 12 Ultimate (12_2), while the K20m is limited to DirectX 12 (11_0), meaning the older card lacks the full feature set of modern graphics APIs. Vulkan support also differs: the RTX 2000 Ada Generation supports Vulkan 1.4, whereas the K20m tops out at 1.2.175.

Memory architecture is another major divergence. The Tesla K20m uses 5 GB of GDDR5 on a 320-bit bus, delivering 208.0 GB/s of bandwidth. The RTX 2000 Ada Generation uses 16 GB of GDDR6 on a 128-bit bus, but achieves 256.0 GB/s thanks to faster memory clocks (16 Gbps effective versus 5.2 Gbps). The newer card has three times the capacity and 23% more bandwidth despite a much narrower bus, evidence of memory technology improvements.

Shading resources also favor the newer card. The RTX 2000 Ada Generation has 2,816 shading units, 88 texture mapping units, and 48 ROPs. The Tesla K20m has 2,496 shading units, 208 TMUs, and 40 ROPs. While the K20m has more TMUs, the RTX 2000 Ada Generation compensates with higher clock speeds—a base of 1,620 MHz and boost of 2,130 MHz versus no listed base or boost for the K20m. The result is a pixel rate of 102.2 GPixel/s for the RTX 2000 Ada Generation versus 36.71 GPixel/s for the K20m, and a texture rate of 187.4 GTexel/s versus 146.8 GTexel/s. FP32 compute is 12.00 TFLOPS for the newer card versus 3.524 TFLOPS for the older one, and the RTX 2000 Ada Generation adds FP16 at 12.00 TFLOPS (1:1), which the K20m lacks entirely.

FAQ

Q: Which card is faster in Geekbench OpenCL?

A: The RTX 2000 Ada Generation scores 78,074, which is 79.2% higher than the Tesla K20m’s 16,241.

Q: Does the Tesla K20m support ray tracing or tensor cores?

A: No. The K20m has no RT cores or tensor cores, while the RTX 2000 Ada Generation includes 22 RT cores and 88 tensor cores.

Q: What is the memory capacity difference?

A: The Tesla K20m has 5 GB of GDDR5, whereas the RTX 2000 Ada Generation has 16 GB of GDDR6, a 3.2x increase in capacity.

Q: How do their power requirements compare?

A: The Tesla K20m has a 225 W TDP and requires a 550 W power supply, while the RTX 2000 Ada Generation has a 70 W TDP and suggests a 250 W PSU. The newer card also requires no power connectors.

Q: Which card supports newer DirectX features?

A: The RTX 2000 Ada Generation supports DirectX 12 Ultimate (12_2), while the Tesla K20m is limited to DirectX 12 (11_0).

Q: What is the production status of each card?

A: The Tesla K20m is end-of-life, released in January 2013, while the RTX 2000 Ada Generation is active, released in February 2024.

The Verdict

The data is unequivocal: the RTX 2000 Ada Generation is the superior card for any modern workload. It wins both head-to-head benchmarks by margins of 73.7% to 79.2%, offers 12.00 TFLOPS of FP32 compute versus 3.524 TFLOPS, and does so at a fraction of the power draw—70 W versus 225 W. The RTX 2000 Ada Generation also brings ray tracing, tensor cores, and 16 GB of memory, making it viable for contemporary AI, rendering, and compute tasks. The Tesla K20m’s only advantage is its slightly higher aggregate percentile (64th versus 63rd), but that is an artifact of different benchmark suites rather than genuine superiority. For anyone choosing between these two today, the RTX 2000 Ada Generation is the only rational pick.

Specification Differences

• Chip and Architecture: Tesla K20m uses GK110 (Kepler); RTX 2000 Ada Generation uses AD107 (Ada Lovelace).
• Process Node: 28 nm versus 5 nm.
• Transistors: 7,080 million versus 18,900 million.
• Die Size: 561 mm² versus 159 mm².
• Transistor Density: 12.6M / mm² versus 118.9M / mm².
• Memory Size: 5 GB versus 16 GB.
• Memory Type: GDDR5 versus GDDR6.
• Memory Bus Width: 320 bit versus 128 bit.
• Memory Bandwidth: 208.0 GB/s versus 256.0 GB/s.
• Memory Clock: 5.2 Gbps effective versus 16 Gbps effective.
• Shading Units: 2,496 versus 2,816.
• TMUs: 208 versus 88.
• ROPs: 40 versus 48.
• RT Cores: None versus 22.
• Tensor Cores: None versus 88.
• Pixel Rate: 36.71 GPixel/s versus 102.2 GPixel/s.
• Texture Rate: 146.8 GTexel/s versus 187.4 GTexel/s.
• FP32 Compute: 3.524 TFLOPS versus 12.00 TFLOPS.
• FP16 Compute: None versus 12.00 TFLOPS (1:1).
• TDP: 225 W versus 70 W.
• Power Connectors: 1x 6-pin + 1x 8-pin versus none.
• Suggested PSU: 550 W versus 250 W.
• Bus Interface: PCIe 2.0 x16 versus PCIe 4.0 x8.
• Display Outputs: No outputs versus 4x mini-DisplayPort 1.4a.
• DirectX Support: 12 (11_0) versus 12 Ultimate (12_2).
• Vulkan Support: 1.2.175 versus 1.4.
• Dimensions: 267 mm length versus 168 mm length and 69 mm height.
• Launch MSRP: The Tesla K20m had a launch MSRP of 3,199 USD; the RTX 2000 Ada Generation had a launch MSRP of 649 USD.

Where Each One Wins

The RTX 2000 Ada Generation wins in every direct comparison available, but its strengths are most pronounced in modern compute and graphics workloads. Its 12.00 TFLOPS of FP32 and FP16 performance, combined with 22 RT cores and 88 tensor cores, makes it suitable for ray-traced rendering, machine learning inference, and content creation. The 16 GB memory capacity and 256.0 GB/s bandwidth allow it to handle larger datasets than the K20m’s 5 GB and 208.0 GB/s. Its low 70 W TDP and lack of power connectors also make it ideal for compact workstations or systems with modest power budgets, and its four mini-DisplayPort outputs enable multi-monitor setups—something the K20m cannot do at all.

The Tesla K20m’s wins are historical rather than practical. Its 320-bit memory bus and 208 TMUs were impressive in 2013, and its 3.524 TFLOPS of FP32 compute was respectable for its era. In aggregate benchmark scores, it edges out the RTX 2000 Ada Generation by a narrow margin (19,089 versus 18,954), but this is driven by its performance in legacy workloads that favor Kepler’s design. The K20m also supports OpenGL 4.6, matching the RTX 2000 Ada Generation, but it lacks the modern API features and compute capabilities that define current GPU usage. For legacy compute tasks that cannot be migrated to newer architectures, the K20m might still serve, but its 225 W power draw and end-of-life status make it a poor choice for any new deployment. The data shows no scenario where the K20m is preferable to the RTX 2000 Ada Generation for contemporary work.