NVIDIA GeForce GTX 675M vs NVIDIA RTX PRO 6000 Blackwell Server Comparison

FAQ

Q: How do the benchmark scores compare between the NVIDIA GeForce GTX 675M and the NVIDIA RTX PRO 6000 Blackwell Server?

A: The GTX 675M has an average benchmark score of 6946 in Geekbench OpenCL, while the RTX PRO 6000 Blackwell Server scores 5996 in 3DMark Steel Nomad DX12. These are different benchmark suites, so direct cross-test comparison is not possible, but each card sits near the 34th to 39th percentile of all GPUs in the database.

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

A: The GTX 675M packs 1,950 million transistors on a 332 mm² die, yielding a density of 5.9M transistors per mm². The RTX PRO 6000 Blackwell Server integrates 92,200 million transistors on a 750 mm² die, achieving 122.9M transistors per mm², which is roughly 20 times denser.

Q: Which GPU has higher memory bandwidth?

A: The RTX PRO 6000 Blackwell Server has a memory bus width of 512 bit with GDDR7 memory at 28 Gbps effective, delivering 1.79 TB/s of bandwidth. The GTX 675M uses a 256 bit bus with GDDR5 at 3 Gbps effective, providing 96.00 GB/s. The server card offers over 18 times the bandwidth.

Q: What are the shading unit counts for each card?

A: The GTX 675M contains 384 shading units, 64 texture mapping units, and 32 raster output units. The RTX PRO 6000 Blackwell Server contains 24,064 shading units, 752 texture mapping units, and 192 raster output units, along with 188 ray tracing cores and 752 tensor cores.

Q: What is the difference in FP32 compute performance?

A: The GTX 675M delivers 952.3 GFLOPS of FP32 compute, while the RTX PRO 6000 Blackwell Server delivers 126.0 TFLOPS of FP32 compute. The server card also provides 126.0 TFLOPS of FP16 compute (1:1 ratio), which the GTX 675M does not report.

Q: What are the production statuses and release dates?

A: The GTX 675M is end-of-life and was released on 2012-03-21. The RTX PRO 6000 Blackwell Server is active and was released on 2025-03-17. The GTX 675M belongs to the GeForce 600M generation with a Fermi 2.0 architecture, while the server card belongs to the Server Blackwell (Bxx) generation with Blackwell 2.0 architecture.

The Verdict

The GTX 675M and the RTX PRO 6000 Blackwell Server are not direct competitors; they serve entirely different segments separated by over a decade of development. The data shows the GTX 675M is a mobile-class GPU from 2012, while the RTX PRO 6000 Blackwell Server is a 2025 server/workstation part with dramatically higher specifications across every measurable category.

For legacy systems or retro computing, the GTX 675M is the only option here, as it fits MXM-B (3.0) slots and draws only 100 W with no external power connectors. Its nearest rivals include the AMD Radeon R5 M240 (delta -0.4%), NVIDIA GeForce GTX 680M (delta -1.1%), NVIDIA T600 (delta -1.3%), and AMD FirePro M5100 (delta +1.7%). The GTX 675M sits at the 39th percentile among all GPUs, meaning it outperforms roughly 39% of the database.

The RTX PRO 6000 Blackwell Server is the clear choice for modern compute workloads. It uses PCIe 5.0 x16, has 96 GB of GDDR7 memory, 24,064 shading units, and 126.0 TFLOPS FP32 compute. Its nearest rivals in the database are the NVIDIA GeForce GTX 770M (delta -0.1%), AMD Radeon RX 6400 (delta -0.1%), AMD FirePro W4100 (delta +0.2%), and NVIDIA Quadro K4000M (delta +0.2%). It sits at the 34th percentile, which reflects the specific 3DMark Steel Nomad DX12 benchmark rather than its raw compute capability.

For anyone running modern AI, rendering, or server workloads, the RTX PRO 6000 Blackwell Server is the only viable option. For those maintaining or testing legacy mobile platforms, the GTX 675M remains a functional entry point with DirectX 12 (11_0) support and OpenGL 4.6.

Head-to-Head Benchmarks

The head-to-head benchmarks array contains no direct comparison results, so the recorded data cannot show a direct match between these two GPUs. However, the individual benchmark scores provide context. The GTX 675M scored 6946 in Geekbench OpenCL, a test that measures general-purpose compute performance on a mobile GPU. The RTX PRO 6000 Blackwell Server scored 5996 in 3DMark Steel Nomad DX12, a test focused on modern DirectX 12 gaming workloads.

Because these tests differ, the raw numbers are not directly comparable. The nearest rivals for the GTX 675M show it is tightly clustered: the AMD Radeon R5 M240 scores 6975 (delta -0.4%), the NVIDIA GeForce GTX 680M scores 7023 (delta -1.1%), and the NVIDIA T600 scores 7035 (delta -1.3%). The only rival it beats is the AMD FirePro M5100 at 6830 (delta +1.7%). This indicates the GTX 675M is marginally below the middle of its peer group.

The RTX PRO 6000 Blackwell Server sits within a similarly narrow band: the NVIDIA GeForce GTX 770M scores 6000 (delta -0.1%), the AMD Radeon RX 6400 scores 6001 (delta -0.1%), and the AMD FirePro W4100 scores 5987 (delta +0.2%). The NVIDIA Quadro K4000M scores 5986 (delta +0.2%). The server card effectively ties its nearest rivals in this specific benchmark, which is unusual for a GPU with such a large specification advantage, suggesting the Steel Nomad test may not be representative of its full capability.

Given the enormous specification gap, the RTX PRO 6000 Blackwell Server should vastly outperform the GTX 675M in any compute-heavy task. The GTX 675M has 384 shading units versus 24,064, and 32 ROPs versus 192. The memory bandwidth difference alone, 96.00 GB/s versus 1.79 TB/s, would be decisive in any bandwidth-bound workload.

Specification Differences

The two GPUs differ in nearly every specification field. The GTX 675M uses a 40 nm process node, while the RTX PRO 6000 Blackwell Server uses 5 nm. Both are fabricated by TSMC, but the die size differs significantly: 332 mm² for the GTX 675M versus 750 mm² for the server card. Transistor counts jump from 1,950 million to 92,200 million, and transistor density from 5.9M per mm² to 122.9M per mm².

Memory configurations are completely different. The GTX 675M has 2 GB of GDDR5 on a 256 bit bus, while the RTX PRO 6000 Blackwell Server has 96 GB of GDDR7 on a 512 bit bus. Memory clock differs as well: 750 MHz (3 Gbps effective) versus 1750 MHz (28 Gbps effective). Bandwidth scales from 96.00 GB/s to 1.79 TB/s.

The core configuration differs drastically. The GTX 675M has 384 shading units, 64 TMUs, and 32 ROPs. The RTX PRO 6000 Blackwell Server has 24,064 shading units, 752 TMUs, and 192 ROPs, plus 188 ray tracing cores and 752 tensor cores. Pixel rate goes from 9.920 GPixel/s to 502.5 GPixel/s, and texture rate from 39.68 GTexel/s to 1,968.0 GTexel/s.

Power and physical specifications differ. The GTX 675M has a TDP of 100 W and uses an MXM Module slot with no power connectors. The RTX PRO 6000 Blackwell Server has a 600 W TDP, is dual-slot, uses a 1x 16-pin power connector, and requires a suggested PSU of 1000 W. The bus interface changes from MXM-B (3.0) to PCIe 5.0 x16. Display outputs change from portable-device-dependent to 4x DisplayPort 2.1b.

Architecture Differences

The GTX 675M is built on the Fermi 2.0 architecture using the GF114 chip, part of the GeForce 600M generation. It supports DirectX 12 (11_0), OpenGL 4.6, and has no reported Vulkan support. It has no ray tracing cores or tensor cores. The architecture is a refinement of the Fermi design, optimized for mobile gaming in 2012.

The RTX PRO 6000 Blackwell Server is built on the Blackwell 2.0 architecture using the GB202 chip, part of the Server Blackwell (Bxx) generation. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. It includes 188 ray tracing cores and 752 tensor cores, enabling hardware-accelerated ray tracing and AI tensor operations. The FP16 compute matches FP32 at 126.0 TFLOPS (1:1), allowing efficient mixed-precision workloads.

The manufacturing process differs by several generations: 40 nm versus 5 nm. This accounts for the massive transistor density improvement, from 5.9M per mm² to 122.9M per mm². The RTX PRO 6000 Blackwell Server also uses GDDR7 memory, a significant upgrade over the GDDR5 in the GTX 675M. The server card has a predecessor of Server Hopper and a successor of Server Rubin, while the GTX 675M has a predecessor of GeForce 500M and a successor of GeForce 700M.

Where Each One Wins

The GTX 675M wins in legacy compatibility and low-power scenarios. It consumes only 100 W with no external power connector, making it suitable for older mobile platforms with MXM-B (3.0) slots. It supports DirectX 12 (11_0) and OpenGL 4.6, enough for older game titles and basic compute. Its 2 GB GDDR5 memory is appropriate for lightweight workloads. The data shows it sits at the 39th percentile, and it outperforms the AMD FirePro M5100 by 1.7%, though it trails the AMD Radeon R5 M240, NVIDIA GeForce GTX 680M, and NVIDIA T600 by small margins.

The RTX PRO 6000 Blackwell Server wins in every modern compute metric. Its 96 GB GDDR7 memory with 1.79 TB/s bandwidth supports massive datasets. The 24,064 shading units and 126.0 TFLOPS FP32 deliver enormous compute throughput. The 188 ray tracing cores handle real-time ray tracing, and the 752 tensor cores accelerate AI inference and training. The PCIe 5.0 x16 interface provides high bandwidth to the host system, and the 4x DisplayPort 2.1b outputs support modern multi-display setups.

For gaming, the RTX PRO 6000 Blackwell Server supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, which are required for modern game engines. The GTX 675M is limited to DirectX 12 (11_0) with no Vulkan support, which restricts it to older APIs. For server deployments, the RTX PRO 6000 Blackwell Server is the only option with its active production status, 600 W TDP, and dual-slot form factor. The GTX 675M is end-of-life and cannot handle contemporary workloads. The recorded data indicates that the GTX 675M is best reserved for retro systems, while the RTX PRO 6000 Blackwell Server is the clear choice for any current or future compute-heavy application.