AMD Radeon Vega 8 Mobile vs NVIDIA GeForce GTX 750 Comparison

# Head-to-Head Benchmarks

The benchmark data places these two GPUs in nearly identical overall standing, yet the individual test results reveal a clear performance hierarchy. The NVIDIA GeForce GTX 750 wins both head-to-head benchmark comparisons, securing a 2-0 victory over the AMD Radeon Vega 8 Mobile.

In the Geekbench OpenCL test, the GTX 750 delivers a score of 9,315 against the Vega 8 Mobile’s 7,435. This represents a 25.3% advantage for the NVIDIA part — a substantial margin that shows the discrete card’s compute capability under general-purpose workloads. The OpenCL result is the largest performance gap between the two in any measured test.

The Vulkan API test tells a similar but less dramatic story. The GTX 750 scores 8,078, while the Vega 8 Mobile trails at 6,970. The 15.9% delta in NVIDIA’s favor confirms that the advantage persists across different graphics APIs, though the narrower margin suggests the AMD integrated solution closes some ground under Vulkan’s lower-overhead model.

Looking at the broader average benchmark scores, the two GPUs are almost inseparable. The GTX 750 averages 7,222 across all tests, while the Vega 8 Mobile averages 7,203 — a difference of just 0.3%. Both GPUs sit in the bottom half of the performance distribution, with the GTX 750 at the 40th percentile and the Vega 8 Mobile at the 39th percentile of all GPUs.

The nearest-rival data reinforces how tightly grouped these two parts are. The GTX 750’s closest competitor is the Vega 8 Mobile itself, with a delta of only 0.3%. Meanwhile, the Vega 8 Mobile’s nearest rival is the GTX 750, showing a -0.3% delta. The next nearest rivals for both — the GeForce GTX 560 SE at 7,171 and the Intel Iris Pro Graphics P580 at 7,170 — sit within 0.7% of the GTX 750’s average.

What emerges is a pattern where the GTX 750 consistently outperforms in raw compute benchmarks, yet the overall average score nearly equalizes. This occurs because the GTX 750’s OpenCL score of 9,315 and Vulkan score of 8,078 are both higher than the Vega 8 Mobile’s corresponding scores, but the NVIDIA part’s Geekbench Metal score of 4,274 drags its average down when included in the composite. The Vega 8 Mobile lacks a Metal score in its benchmark set, which means the averages are computed over different test suites.

# Architecture Differences

The two GPUs come from fundamentally different design philosophies. The GTX 750 uses the GM107 chip built on NVIDIA’s Maxwell architecture, fabricated on a 28 nm process at TSMC. The Vega 8 Mobile uses the Raven-M chip with AMD’s GCN 5.0 architecture, manufactured on a 14 nm process at GlobalFoundries. The process node difference is significant: 28 nm versus 14 nm, which explains why AMD packs substantially more transistors into a modestly larger die.

The transistor counts reveal the scale of the architectural divergence. The GTX 750 contains 1,870 million transistors on a 148 mm² die, yielding a transistor density of 12.6 million transistors per square millimeter. The Vega 8 Mobile packs 4,940 million transistors onto a 210 mm² die, achieving a far higher density of 23.5 million transistors per square millimeter. This density advantage reflects both the newer process node and the integrated design’s need to house more logic beyond just the graphics cores.

Clock behavior differs dramatically between the two. The GTX 750 runs at a base clock of 1,020 MHz with a boost clock of 1,085 MHz. The Vega 8 Mobile operates at a very low 300 MHz base clock but boosts to 1,101 MHz — slightly higher than the NVIDIA part’s boost. The wide gap between base and boost on the AMD side suggests aggressive power management typical of integrated parts that must share thermal and power budgets with a CPU.

Memory architecture represents one of the most consequential differences. The GTX 750 has 1,024 MB of dedicated GDDR5 memory on a 128-bit bus, delivering 80.19 GB/s of bandwidth at 5 Gbps effective speed. The Vega 8 Mobile uses system-shared memory with no dedicated VRAM, a system-dependent bus width, and bandwidth that the data simply describes as "System Dependent." This means the AMD part’s memory performance varies entirely with the host system’s RAM configuration, while the NVIDIA card has fixed, predictable bandwidth.

The compute resources show both similarity and divergence. Both GPUs have 512 shading units and 32 texture mapping units. However, the GTX 750 has 16 raster output units (ROPs) while the Vega 8 Mobile has only 8. This ROP difference directly impacts pixel throughput: the GTX 750 achieves 17.36 GPixel/s versus the Vega 8 Mobile’s 8.808 GPixel/s — nearly a 2:1 ratio. Texture rates are nearly identical, with the GTX 750 at 34.72 GTexel/s and the Vega 8 Mobile at 35.23 GTexel/s.

Compute throughput measured in FP32 is also close: the GTX 750 delivers 1,111.0 GFLOPS, while the Vega 8 Mobile delivers 1,127.4 GFLOPS. However, the AMD part adds FP16 capability at 2.255 TFLOPS with a 2:1 ratio, while the NVIDIA card lists no FP16 support. The Vega 8 Mobile also supports DirectX 12 (12_1) versus the GTX 750’s DirectX 12 (11_0), indicating a higher feature level for the AMD part. Vulkan support is slightly newer on the AMD side (1.3 versus 1.4 for NVIDIA, though NVIDIA’s 1.4 is actually newer), while OpenGL support matches at 4.6 for both.

# FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce GTX 750 averages 7,222 across its benchmark suite, while the AMD Radeon Vega 8 Mobile averages 7,203. The difference is 0.3% in NVIDIA’s favor, making them statistically near-identical in overall performance.

Q: How much faster is the GTX 750 in OpenCL compute workloads?

A: The GTX 750 scores 9,315 in Geekbench OpenCL, while the Vega 8 Mobile scores 7,435. This gives the NVIDIA card a 25.3% advantage in this specific test.

Q: Does the Vega 8 Mobile support any features the GTX 750 does not?

A: Yes. The Vega 8 Mobile supports DirectX 12 (12_1) compared to the GTX 750’s DirectX 12 (11_0), and it has FP16 compute capability rated at 2.255 TFLOPS. The GTX 750 lists no FP16 support.

Q: What is the memory configuration difference between these two GPUs?

A: The GTX 750 has 1,024 MB of dedicated GDDR5 memory on a 128-bit bus with 80.19 GB/s bandwidth. The Vega 8 Mobile uses system-shared memory with no dedicated VRAM, and its bandwidth is system-dependent.

Q: How do their pixel fill rates compare?

A: The GTX 750 achieves 17.36 GPixel/s, while the Vega 8 Mobile achieves 8.808 GPixel/s. The NVIDIA card has exactly twice the ROP count (16 versus 8), explaining this significant difference.

Q: Which GPU is more power-efficient based on the available data?

A: The Vega 8 Mobile has a TDP of 25 W, while the GTX 750 has a TDP of 55 W. Despite the higher power draw, the GTX 750 delivers higher benchmark scores in every head-to-head test.

# Specification Differences

The two GPUs differ in nearly every fundamental specification category. The process node shows 28 nm for the GTX 750 versus 14 nm for the Vega 8 Mobile. Transistor counts are 1,870 million versus 4,940 million, with die sizes of 148 mm² versus 210 mm². Transistor density measures 12.6M/mm² for NVIDIA and 23.5M/mm² for AMD.

Clock speeds differ substantially: the GTX 750 has a base clock of 1,020 MHz and boost of 1,085 MHz, while the Vega 8 Mobile runs at 300 MHz base and 1,101 MHz boost. Memory configurations are entirely different — the GTX 750 uses 1,024 MB of GDDR5 on a 128-bit bus with 80.19 GB/s bandwidth, while the Vega 8 Mobile relies on system-shared memory with system-dependent bandwidth.

ROP counts differ by half: 16 for the GTX 750 versus 8 for the Vega 8 Mobile. Pixel rate reflects this at 17.36 GPixel/s versus 8.808 GPixel/s. FP16 capability exists only on the Vega 8 Mobile at 2.255 TFLOPS. TDP is 55 W for the GTX 750 and 25 W for the Vega 8 Mobile. The GTX 750 is a single-slot card with a 250 W suggested PSU, while the Vega 8 Mobile is an IGP with no suggested PSU. Bus interfaces are PCIe 3.0 x16 versus IGP.

DirectX support differs: the GTX 750 supports version 12 (11_0), while the Vega 8 Mobile supports 12 (12_1). Vulkan support is 1.4 on NVIDIA and 1.3 on AMD. The GTX 750 has display outputs of 2x DVI and 1x mini-HDMI 1.4a, while the Vega 8 Mobile’s outputs are portable-device dependent. Release dates are 2014-02-17 for the GTX 750 and 2019-01-07 for the Vega 8 Mobile. The GTX 750 has a launch MSRP of 119 USD; the Vega 8 Mobile has no listed launch MSRP.

# The Verdict

The data supports a clear conclusion: the NVIDIA GeForce GTX 750 is the faster GPU in direct benchmark comparisons. It wins both head-to-head tests, with margins of 25.3% in OpenCL and 15.9% in Vulkan. Its average benchmark score of 7,222 edges out the Vega 8 Mobile’s 7,203 by 0.3%. The GTX 750 also holds advantages in pixel throughput, dedicated memory bandwidth, and ROP count.

However, the Vega 8 Mobile is not without merit. It achieves nearly identical texture rate (35.23 GTexel/s versus 34.72 GTexel/s) and slightly higher FP32 compute (1,127.4 GFLOPS versus 1,111.0 GFLOPS). It runs at less than half the TDP (25 W versus 55 W), supports a higher DirectX feature level (12_1 versus 11_0), and includes FP16 processing that the NVIDIA card lacks. For systems constrained by power or thermal limits — particularly mobile platforms — the Vega 8 Mobile’s efficiency and integrated design offer practical advantages.

The GTX 750 is the better choice for users who need consistent, dedicated graphics performance with predictable memory bandwidth, especially in discrete GPU workloads like pixel-heavy rendering or OpenCL compute. The Vega 8 Mobile is preferable in scenarios where power consumption matters most and where the system’s shared memory configuration can provide adequate bandwidth.

# Where Each One Wins

The GTX 750 wins in raw compute benchmarks across both OpenCL and Vulkan APIs. Its 9,315 OpenCL score and 8,078 Vulkan score exceed the Vega 8 Mobile’s 7,435 and 6,970 respectively. It also dominates pixel processing with 17.36 GPixel/s versus 8.808 GPixel/s, making it the stronger choice for fill-rate-limited workloads or any application that benefits from its 80.19 GB/s dedicated memory bandwidth.

The Vega 8 Mobile wins on power efficiency and architectural modernity. At 25 W TDP, it uses less than half the power of the GTX 750’s 55 W. It supports DirectX 12 (12_1) versus the GTX 750’s 11_0 feature level, and it offers FP16 compute at 2.255 TFLOPS — a capability entirely absent from the NVIDIA part. Its higher transistor density (23.5M/mm² versus 12.6M/mm²) and newer 14 nm process node suggest better long-term efficiency scaling.

In practical terms, the GTX 750 wins for desktop users with access to a PCIe 3.0 x16 slot who need dependable discrete graphics performance without relying on system memory. The Vega 8 Mobile wins for portable or compact systems where the IGP form factor eliminates the need for a separate card, where power draw is critical, and where the system’s shared memory can be configured to provide sufficient bandwidth. The texture rate parity (34.72 versus 35.23 GTexel/s) means texture-heavy workloads are a near tie, while the GTX 750’s 2x ROP advantage makes it the clear winner for resolution-dependent pixel workloads.