Radeon HD 7870 XT vs Tesla K40c

AMD

Radeon HD 7870 XT

2012Core: 925 MHzBoost: 975 MHz
VS
NVIDIA

Tesla K40c

2013Core: 745 MHzBoost: 876 MHz

Radeon HD 7870 XT vs Tesla K40c Performance Spectrum

About G3D Mark

G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Radeon HD 7870 XT vs Tesla K40c: Pros, Cons & Final Verdict

See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.

Radeon HD 7870 XT

2012

Why buy it

  • Costs $7,429 less on MSRP ($270 MSRP vs $7,699 MSRP).
  • Delivers 2735.6% more G3D Mark for each dollar spent, at 16.6 vs 0.6 G3D/$ ($270 MSRP vs $7,699 MSRP).
  • Draws 185W instead of 245W, a 60W reduction.

Trade-offs

  • 2012 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.

Tesla K40c

2013

Why buy it

  • More future proof: Kepler (2012−2018) on 28nm with a newer platform for upcoming games.

Trade-offs

  • 2013 hardware with 2 GB of VRAM is already well past its comfortable zone for modern gaming, so it is hard to recommend now.
  • 2751.5% HIGHER MSRP
    $7,699 MSRPvs$270 MSRP
  • Lower G3D Mark per dollar, at 0.6 vs 16.6 G3D/$ ($7,699 MSRP vs $270 MSRP).
  • 32.4% higher power demand at 245W vs 185W.

Quick Answers

Which GPU is faster for gaming right now?
Tesla K40c is the faster gaming card right now based on the synthetic data we have. It leads by 0.6% in PassMark G3D (4,495 vs 4,470), which is the best performance signal available in this matchup.
Which GPU is the safer long-term pick for 2026 and beyond?
Radeon HD 7870 XT is the safer long-term pick for 2026 and beyond. The case is simple: the newer upscaling stack, FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack. That still leaves it as the safer long-term option on hardware alone.
Which GPU is the better buy today?
Radeon HD 7870 XT makes the most sense to buy today. It is $7,429 cheaper on MSRP at $270 vs $7,699, and it leads G3D-per-dollar by 2735.6% (16.6 vs 0.6), which is enough to swing the recommendation its way. Tesla K40c still makes more sense if max raw gaming performance matters more than value.

Radeon HD 7870 XT vs Tesla K40c Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

AMD

Radeon HD 7870 XT

The Radeon HD 7870 XT is manufactured by AMD. It was released in November 19 2012. It features the GCN 1.0 architecture. The core clock ranges from 925 MHz to 975 MHz. It has 1536 shading units. The thermal design power (TDP) is 185W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,470 points. Launch price was $270.

NVIDIA

Tesla K40c

The Tesla K40c is manufactured by NVIDIA. It was released in October 8 2013. It features the Kepler architecture. The core clock ranges from 745 MHz to 876 MHz. It has 2880 shading units. The thermal design power (TDP) is 245W. Manufactured using 28 nm process technology. G3D Mark benchmark score: 4,495 points. Launch price was $7,699.

Graphics Performance

The Radeon HD 7870 XT scores 4,470 and the Tesla K40c reaches 4,495 in the G3D Mark benchmark — just a 0.6% difference, making them near-identical in rasterization performance. The Radeon HD 7870 XT is built on GCN 1.0 while the Tesla K40c uses Kepler, both on a 28 nm process. Shader units: 1,536 (Radeon HD 7870 XT) vs 2,880 (Tesla K40c). Raw compute: 2.995 TFLOPS (Radeon HD 7870 XT) vs 5.046 TFLOPS (Tesla K40c). Boost clocks: 975 MHz vs 876 MHz.

FeatureRadeon HD 7870 XTTesla K40c
G3D Mark Score
4,470
4,495
Architecture
GCN 1.0
Kepler
Process Node
28 nm
28 nm
Shading Units
1536
2880+88%
Compute (TFLOPS)
2.995 TFLOPS
5.046 TFLOPS+68%
Boost Clock
975 MHz+11%
876 MHz
ROPs
32
48+50%
TMUs
96
240+150%
L1 Cache
384 KB+60%
240 KB
L2 Cache
0.5 MB
1.5 MB+200%

Advanced Features (DLSS/FSR)

FeatureRadeon HD 7870 XTTesla K40c
Upscaling Tech
FSR Upscaling / FSR 4
Upscaling support
Frame Generation
Not Supported
Not Supported
Ray Reconstruction
No
No
Low Latency
AMD Anti-Lag
Standard
💾

Video Memory (VRAM)

Both cards ship with 2 GB of GDDR5. Memory bus width is 256-bit on the Radeon HD 7870 XT and 64-bit on the Tesla K40c. L2 Cache: 0.5 MB (Radeon HD 7870 XT) vs 1.5 MB (Tesla K40c) — the Tesla K40c has significantly larger on-die cache to reduce VRAM reliance.

FeatureRadeon HD 7870 XTTesla K40c
VRAM Capacity
2 GB
2 GB
Memory Type
GDDR5
GDDR5
Bus Width
256-bit+300%
64-bit
L2 Cache
0.5 MB
1.5 MB+200%
🖥️

Display & API Support

DirectX support: 12 (11_1) (Radeon HD 7870 XT) vs 11_0 (Tesla K40c). Maximum simultaneous displays: 4 vs 0.

FeatureRadeon HD 7870 XTTesla K40c
DirectX
12 (11_1)+9%
11_0
Max Displays
4
0
🔌

Power & Dimensions

The Radeon HD 7870 XT draws 185W versus the Tesla K40c's 245W — a 27.9% difference. The Radeon HD 7870 XT is more power-efficient. Recommended PSU: 500W (Radeon HD 7870 XT) vs 350W (Tesla K40c). Power connectors: 2x 6-pin vs PCIe-powered. Card length: 267mm vs 267mm, occupying 2 vs 2 slots.

FeatureRadeon HD 7870 XTTesla K40c
TDP
185W-24%
245W
Recommended PSU
500W
350W-30%
Power Connector
2x 6-pin
PCIe-powered
Length
267mm
267mm
Height
111mm
Slots
2
2
Temp (Load)
80
Perf/Watt
24.2+32%
18.3
💰

Value Analysis

At launch, the Radeon HD 7870 XT came in at $270, while the Tesla K40c launched at $7699. On MSRP, Radeon HD 7870 XT was 96.5% cheaper ($7429 less). Performance per dollar on MSRP (G3D Mark / MSRP): 16.6 (Radeon HD 7870 XT) vs 0.6 (Tesla K40c) — the Radeon HD 7870 XT offers 2666.7% better value. The newer card here is Tesla K40c (2013 vs 2012).

FeatureRadeon HD 7870 XTTesla K40c
MSRP
$270-96%
$7699
Performance per Dollar
16.6+2667%
0.6
Codename
Tahiti
GK180
Release
November 19 2012
October 8 2013
Ranking
#469
#465

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